Pr3CeFe34 crystallizes in the monoclinic Cm space group. There are three inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 19-coordinate geometry to one Fe(16), one Fe(19), one Fe(2), one Fe(20), one Fe(6), two equivalent Fe(10), two equivalent Fe(12), two equivalent Fe(14), two equivalent Fe(18), two equivalent Fe(8), and four equivalent Fe(22) atoms. In the second Pr site, Pr(2) is bonded in a 19-coordinate geometry to one Fe(15), one Fe(16), one Fe(19), one Fe(3), one Fe(5), two equivalent Fe(10), two equivalent Fe(11), two equivalent Fe(13), two equivalent Fe(21), two equivalent Fe(8), and four equivalent Fe(17) atoms. In the third Pr site, Pr(3) is bonded in a 19-coordinate geometry to one Fe(15), one Fe(16), one Fe(20), one Fe(4), one Fe(6), two equivalent Fe(12), two equivalent Fe(14), two equivalent Fe(22), two equivalent Fe(7), two equivalent Fe(9), and four equivalent Fe(18) atoms. Ce(1) is bonded in a 19-coordinate geometry to one Fe(1), one Fe(15), one Fe(19), one Fe(20), one Fe(5), two equivalent Fe(11), two equivalent Fe(13), two equivalent Fe(17), two equivalent Fe(7), two equivalent Fe(9), and four equivalent Fe(21) atoms. There are twenty-two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 14-coordinate geometry to one Ce(1), one Fe(20), one Fe(4), one Fe(5), two equivalent Fe(12), two equivalent Fe(13), two equivalent Fe(21), two equivalent Fe(7), and two equivalent Fe(9) atoms. In the second Fe site, Fe(2) is bonded in a 14-coordinate geometry to one Pr(1), one Fe(19), one Fe(3), one Fe(6), two equivalent Fe(10), two equivalent Fe(11), two equivalent Fe(14), two equivalent Fe(22), and two equivalent Fe(8) atoms. In the third Fe site, Fe(3) is bonded in a 14-coordinate geometry to one Pr(2), one Fe(16), one Fe(2), one Fe(5), two equivalent Fe(10), two equivalent Fe(11), two equivalent Fe(14), two equivalent Fe(17), and two equivalent Fe(8) atoms. In the fourth Fe site, Fe(4) is bonded in a 14-coordinate geometry to one Pr(3), one Fe(1), one Fe(15), one Fe(6), two equivalent Fe(12), two equivalent Fe(13), two equivalent Fe(18), two equivalent Fe(7), and two equivalent Fe(9) atoms. In the fifth Fe site, Fe(5) is bonded to one Pr(2), one Ce(1), one Fe(1), one Fe(3), two equivalent Fe(11), two equivalent Fe(13), two equivalent Fe(17), and two equivalent Fe(21) atoms to form FeCePrFe10 cuboctahedra that share corners with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, corners with two equivalent Fe(17)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(7)CePrFe10 cuboctahedra, corners with two equivalent Fe(10)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(12)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(14)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(8)Pr2Fe10 cuboctahedra, corners with three equivalent Fe(15)CePr2Fe9 cuboctahedra, corners with three equivalent Fe(19)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(20)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(16)Pr3Fe9 cuboctahedra, edges with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, edges with two equivalent Fe(17)CePr2Fe9 cuboctahedra,  a faceface with one Fe(15)CePr2Fe9 cuboctahedra,  a faceface with one Fe(19)CePr2Fe9 cuboctahedra, faces with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, faces with two equivalent Fe(17)CePr2Fe9 cuboctahedra, faces with two equivalent Fe(7)CePrFe10 cuboctahedra, faces with two equivalent Fe(10)Pr2Fe10 cuboctahedra, and faces with two equivalent Fe(8)Pr2Fe10 cuboctahedra. In the sixth Fe site, Fe(6) is bonded to one Pr(1), one Pr(3), one Fe(2), one Fe(4), two equivalent Fe(12), two equivalent Fe(14), two equivalent Fe(18), and two equivalent Fe(22) atoms to form FePr2Fe10 cuboctahedra that share corners with two equivalent Fe(7)CePrFe10 cuboctahedra, corners with two equivalent Fe(10)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(8)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(18)Pr3Fe9 cuboctahedra, corners with two equivalent Fe(22)Pr3Fe9 cuboctahedra, corners with three equivalent Fe(20)CePr2Fe9 cuboctahedra, corners with three equivalent Fe(16)Pr3Fe9 cuboctahedra,  an edgeedge with one Fe(15)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(19)CePr2Fe9 cuboctahedra, edges with two equivalent Fe(12)Pr2Fe10 cuboctahedra, edges with two equivalent Fe(14)Pr2Fe10 cuboctahedra, edges with two equivalent Fe(18)Pr3Fe9 cuboctahedra, edges with two equivalent Fe(22)Pr3Fe9 cuboctahedra,  a faceface with one Fe(20)CePr2Fe9 cuboctahedra,  a faceface with one Fe(16)Pr3Fe9 cuboctahedra, faces with two equivalent Fe(7)CePrFe10 cuboctahedra, faces with two equivalent Fe(10)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(12)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(14)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(8)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(18)Pr3Fe9 cuboctahedra, and faces with two equivalent Fe(22)Pr3Fe9 cuboctahedra. In the seventh Fe site, Fe(7) is bonded to one Pr(3), one Ce(1), one Fe(1), one Fe(12), one Fe(13), one Fe(15), one Fe(18), one Fe(20), one Fe(21), one Fe(4), and two equivalent Fe(9) atoms to form FeCePrFe10 cuboctahedra that share  a cornercorner with one Fe(19)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(5)CePrFe10 cuboctahedra,  a cornercorner with one Fe(14)Pr2Fe10 cuboctahedra,  a cornercorner with one Fe(6)Pr2Fe10 cuboctahedra,  a cornercorner with one Fe(16)Pr3Fe9 cuboctahedra, corners with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, corners with two equivalent Fe(17)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(7)CePrFe10 cuboctahedra, corners with two equivalent Fe(12)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(18)Pr3Fe9 cuboctahedra, corners with two equivalent Fe(22)Pr3Fe9 cuboctahedra,  an edgeedge with one Fe(21)Ce2PrFe9 cuboctahedra,  an edgeedge with one Fe(15)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(17)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(20)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(14)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(18)Pr3Fe9 cuboctahedra,  an edgeedge with one Fe(22)Pr3Fe9 cuboctahedra,  a faceface with one Fe(15)CePr2Fe9 cuboctahedra,  a faceface with one Fe(20)CePr2Fe9 cuboctahedra,  a faceface with one Fe(5)CePrFe10 cuboctahedra,  a faceface with one Fe(6)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, faces with two equivalent Fe(7)CePrFe10 cuboctahedra, faces with two equivalent Fe(18)Pr3Fe9 cuboctahedra, and faces with three equivalent Fe(12)Pr2Fe10 cuboctahedra. In the eighth Fe site, Fe(8) is bonded to one Pr(1), one Pr(2), one Fe(11), one Fe(14), one Fe(16), one Fe(17), one Fe(19), one Fe(2), one Fe(22), one Fe(3), and two equivalent Fe(10) atoms to form FePr2Fe10 cuboctahedra that share  a cornercorner with one Fe(15)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(20)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(5)CePrFe10 cuboctahedra,  a cornercorner with one Fe(12)Pr2Fe10 cuboctahedra,  a cornercorner with one Fe(6)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, corners with two equivalent Fe(17)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(10)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(14)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(8)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(18)Pr3Fe9 cuboctahedra, corners with two equivalent Fe(22)Pr3Fe9 cuboctahedra,  an edgeedge with one Fe(21)Ce2PrFe9 cuboctahedra,  an edgeedge with one Fe(17)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(19)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(12)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(16)Pr3Fe9 cuboctahedra,  an edgeedge with one Fe(18)Pr3Fe9 cuboctahedra,  an edgeedge with one Fe(22)Pr3Fe9 cuboctahedra, edges with two equivalent Fe(10)Pr2Fe10 cuboctahedra,  a faceface with one Fe(19)CePr2Fe9 cuboctahedra,  a faceface with one Fe(5)CePrFe10 cuboctahedra,  a faceface with one Fe(6)Pr2Fe10 cuboctahedra,  a faceface with one Fe(16)Pr3Fe9 cuboctahedra, faces with two equivalent Fe(17)CePr2Fe9 cuboctahedra, faces with two equivalent Fe(10)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(8)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(22)Pr3Fe9 cuboctahedra, and faces with three equivalent Fe(14)Pr2Fe10 cuboctahedra. In the ninth Fe site, Fe(9) is bonded in a 12-coordinate geometry to one Pr(3), one Ce(1), one Fe(1), one Fe(12), one Fe(13), one Fe(15), one Fe(18), one Fe(20), one Fe(21), one Fe(4), and two equivalent Fe(7) atoms. In the tenth Fe site, Fe(10) is bonded to one Pr(1), one Pr(2), one Fe(11), one Fe(14), one Fe(16), one Fe(17), one Fe(19), one Fe(2), one Fe(22), one Fe(3), and two equivalent Fe(8) atoms to form distorted FePr2Fe10 cuboctahedra that share  a cornercorner with one Fe(21)Ce2PrFe9 cuboctahedra,  a cornercorner with one Fe(15)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(20)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(5)CePrFe10 cuboctahedra,  a cornercorner with one Fe(6)Pr2Fe10 cuboctahedra,  a cornercorner with one Fe(18)Pr3Fe9 cuboctahedra, corners with two equivalent Fe(17)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(10)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(14)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(8)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(22)Pr3Fe9 cuboctahedra, corners with three equivalent Fe(12)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(17)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(10)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(22)Pr3Fe9 cuboctahedra, edges with two equivalent Fe(8)Pr2Fe10 cuboctahedra,  a faceface with one Fe(21)Ce2PrFe9 cuboctahedra,  a faceface with one Fe(5)CePrFe10 cuboctahedra,  a faceface with one Fe(10)Pr2Fe10 cuboctahedra,  a faceface with one Fe(6)Pr2Fe10 cuboctahedra,  a faceface with one Fe(18)Pr3Fe9 cuboctahedra, faces with two equivalent Fe(17)CePr2Fe9 cuboctahedra, faces with two equivalent Fe(19)CePr2Fe9 cuboctahedra, faces with two equivalent Fe(8)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(16)Pr3Fe9 cuboctahedra, faces with two equivalent Fe(22)Pr3Fe9 cuboctahedra, and faces with three equivalent Fe(14)Pr2Fe10 cuboctahedra. In the eleventh Fe site, Fe(11) is bonded in a 12-coordinate geometry to one Pr(2), one Ce(1), one Fe(10), one Fe(11), one Fe(19), one Fe(2), one Fe(21), one Fe(3), one Fe(5), one Fe(8), and two equivalent Fe(17) atoms. In the twelfth Fe site, Fe(12) is bonded to one Pr(1), one Pr(3), one Fe(1), one Fe(12), one Fe(20), one Fe(22), one Fe(4), one Fe(6), one Fe(7), one Fe(9), and two equivalent Fe(18) atoms to form distorted FePr2Fe10 cuboctahedra that share  a cornercorner with one Fe(21)Ce2PrFe9 cuboctahedra,  a cornercorner with one Fe(15)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(19)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(5)CePrFe10 cuboctahedra,  a cornercorner with one Fe(8)Pr2Fe10 cuboctahedra,  a cornercorner with one Fe(16)Pr3Fe9 cuboctahedra, corners with two equivalent Fe(7)CePrFe10 cuboctahedra, corners with two equivalent Fe(18)Pr3Fe9 cuboctahedra, corners with two equivalent Fe(22)Pr3Fe9 cuboctahedra, corners with three equivalent Fe(10)Pr2Fe10 cuboctahedra, corners with three equivalent Fe(12)Pr2Fe10 cuboctahedra, corners with three equivalent Fe(14)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(6)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(8)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(16)Pr3Fe9 cuboctahedra,  an edgeedge with one Fe(22)Pr3Fe9 cuboctahedra,  a faceface with one Fe(21)Ce2PrFe9 cuboctahedra,  a faceface with one Fe(15)CePr2Fe9 cuboctahedra,  a faceface with one Fe(12)Pr2Fe10 cuboctahedra,  a faceface with one Fe(6)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(20)CePr2Fe9 cuboctahedra, faces with two equivalent Fe(14)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(22)Pr3Fe9 cuboctahedra, faces with three equivalent Fe(7)CePrFe10 cuboctahedra, and faces with four equivalent Fe(18)Pr3Fe9 cuboctahedra. In the thirteenth Fe site, Fe(13) is bonded in a 12-coordinate geometry to one Pr(2), one Ce(1), one Fe(1), one Fe(13), one Fe(15), one Fe(17), one Fe(4), one Fe(5), one Fe(7), one Fe(9), and two equivalent Fe(21) atoms. In the fourteenth Fe site, Fe(14) is bonded to one Pr(1), one Pr(3), one Fe(10), one Fe(14), one Fe(16), one Fe(18), one Fe(2), one Fe(3), one Fe(6), one Fe(8), and two equivalent Fe(22) atoms to form distorted FePr2Fe10 cuboctahedra that share  a cornercorner with one Fe(15)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(17)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(19)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(20)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(5)CePrFe10 cuboctahedra,  a cornercorner with one Fe(7)CePrFe10 cuboctahedra, corners with two equivalent Fe(10)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(8)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(18)Pr3Fe9 cuboctahedra, corners with two equivalent Fe(22)Pr3Fe9 cuboctahedra, corners with three equivalent Fe(12)Pr2Fe10 cuboctahedra, corners with three equivalent Fe(14)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(20)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(7)CePrFe10 cuboctahedra,  an edgeedge with one Fe(6)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(18)Pr3Fe9 cuboctahedra,  a faceface with one Fe(17)CePr2Fe9 cuboctahedra,  a faceface with one Fe(19)CePr2Fe9 cuboctahedra,  a faceface with one Fe(14)Pr2Fe10 cuboctahedra,  a faceface with one Fe(6)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(12)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(16)Pr3Fe9 cuboctahedra, faces with two equivalent Fe(18)Pr3Fe9 cuboctahedra, faces with three equivalent Fe(10)Pr2Fe10 cuboctahedra, faces with three equivalent Fe(8)Pr2Fe10 cuboctahedra, and faces with four equivalent Fe(22)Pr3Fe9 cuboctahedra. In the fifteenth Fe site, Fe(15) is bonded to one Pr(2), one Pr(3), one Ce(1), one Fe(4), two equivalent Fe(13), two equivalent Fe(21), two equivalent Fe(7), and two equivalent Fe(9) atoms to form FeCePr2Fe9 cuboctahedra that share corners with two equivalent Fe(20)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(10)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(12)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(14)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(8)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(16)Pr3Fe9 cuboctahedra, corners with two equivalent Fe(22)Pr3Fe9 cuboctahedra, corners with three equivalent Fe(5)CePrFe10 cuboctahedra, corners with four equivalent Fe(21)Ce2PrFe9 cuboctahedra,  an edgeedge with one Fe(19)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(6)Pr2Fe10 cuboctahedra, edges with two equivalent Fe(17)CePr2Fe9 cuboctahedra, edges with two equivalent Fe(7)CePrFe10 cuboctahedra, edges with two equivalent Fe(18)Pr3Fe9 cuboctahedra,  a faceface with one Fe(20)CePr2Fe9 cuboctahedra,  a faceface with one Fe(5)CePrFe10 cuboctahedra, faces with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, faces with two equivalent Fe(17)CePr2Fe9 cuboctahedra, faces with two equivalent Fe(7)CePrFe10 cuboctahedra, faces with two equivalent Fe(12)Pr2Fe10 cuboctahedra, and faces with two equivalent Fe(18)Pr3Fe9 cuboctahedra. In the sixteenth Fe site, Fe(16) is bonded to one Pr(1), one Pr(2), one Pr(3), one Fe(3), two equivalent Fe(10), two equivalent Fe(14), two equivalent Fe(22), and two equivalent Fe(8) atoms to form FePr3Fe9 cuboctahedra that share corners with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, corners with two equivalent Fe(15)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(19)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(7)CePrFe10 cuboctahedra, corners with two equivalent Fe(12)Pr2Fe10 cuboctahedra, corners with three equivalent Fe(6)Pr2Fe10 cuboctahedra, corners with four equivalent Fe(22)Pr3Fe9 cuboctahedra,  an edgeedge with one Fe(20)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(5)CePrFe10 cuboctahedra, edges with two equivalent Fe(17)CePr2Fe9 cuboctahedra, edges with two equivalent Fe(12)Pr2Fe10 cuboctahedra, edges with two equivalent Fe(8)Pr2Fe10 cuboctahedra, edges with two equivalent Fe(18)Pr3Fe9 cuboctahedra,  a faceface with one Fe(19)CePr2Fe9 cuboctahedra,  a faceface with one Fe(6)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(17)CePr2Fe9 cuboctahedra, faces with two equivalent Fe(8)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(18)Pr3Fe9 cuboctahedra, faces with two equivalent Fe(22)Pr3Fe9 cuboctahedra, faces with four equivalent Fe(10)Pr2Fe10 cuboctahedra, and faces with four equivalent Fe(14)Pr2Fe10 cuboctahedra. In the seventeenth Fe site, Fe(17) is bonded to two equivalent Pr(2), one Ce(1), one Fe(10), one Fe(13), one Fe(19), one Fe(21), one Fe(3), one Fe(5), one Fe(8), and two equivalent Fe(11) atoms to form FeCePr2Fe9 cuboctahedra that share  a cornercorner with one Fe(20)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(5)CePrFe10 cuboctahedra,  a cornercorner with one Fe(14)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(17)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(19)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(7)CePrFe10 cuboctahedra, corners with two equivalent Fe(10)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(8)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(22)Pr3Fe9 cuboctahedra, corners with three equivalent Fe(21)Ce2PrFe9 cuboctahedra,  an edgeedge with one Fe(21)Ce2PrFe9 cuboctahedra,  an edgeedge with one Fe(15)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(5)CePrFe10 cuboctahedra,  an edgeedge with one Fe(7)CePrFe10 cuboctahedra,  an edgeedge with one Fe(10)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(8)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(16)Pr3Fe9 cuboctahedra, edges with two equivalent Fe(17)CePr2Fe9 cuboctahedra,  a faceface with one Fe(15)CePr2Fe9 cuboctahedra,  a faceface with one Fe(19)CePr2Fe9 cuboctahedra,  a faceface with one Fe(5)CePrFe10 cuboctahedra,  a faceface with one Fe(14)Pr2Fe10 cuboctahedra,  a faceface with one Fe(16)Pr3Fe9 cuboctahedra, faces with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, faces with two equivalent Fe(17)CePr2Fe9 cuboctahedra, faces with two equivalent Fe(10)Pr2Fe10 cuboctahedra, and faces with two equivalent Fe(8)Pr2Fe10 cuboctahedra. In the eighteenth Fe site, Fe(18) is bonded to one Pr(1), two equivalent Pr(3), one Fe(14), one Fe(20), one Fe(22), one Fe(4), one Fe(6), one Fe(7), one Fe(9), and two equivalent Fe(12) atoms to form FePr3Fe9 cuboctahedra that share  a cornercorner with one Fe(19)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(10)Pr2Fe10 cuboctahedra,  a cornercorner with one Fe(6)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, corners with two equivalent Fe(20)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(7)CePrFe10 cuboctahedra, corners with two equivalent Fe(12)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(14)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(8)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(18)Pr3Fe9 cuboctahedra, corners with three equivalent Fe(22)Pr3Fe9 cuboctahedra,  an edgeedge with one Fe(15)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(7)CePrFe10 cuboctahedra,  an edgeedge with one Fe(14)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(6)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(8)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(16)Pr3Fe9 cuboctahedra,  an edgeedge with one Fe(22)Pr3Fe9 cuboctahedra, edges with two equivalent Fe(18)Pr3Fe9 cuboctahedra,  a faceface with one Fe(15)CePr2Fe9 cuboctahedra,  a faceface with one Fe(20)CePr2Fe9 cuboctahedra,  a faceface with one Fe(10)Pr2Fe10 cuboctahedra,  a faceface with one Fe(6)Pr2Fe10 cuboctahedra,  a faceface with one Fe(16)Pr3Fe9 cuboctahedra, faces with two equivalent Fe(7)CePrFe10 cuboctahedra, faces with two equivalent Fe(14)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(18)Pr3Fe9 cuboctahedra, faces with two equivalent Fe(22)Pr3Fe9 cuboctahedra, and faces with four equivalent Fe(12)Pr2Fe10 cuboctahedra. In the nineteenth Fe site, Fe(19) is bonded to one Pr(1), one Pr(2), one Ce(1), one Fe(2), two equivalent Fe(10), two equivalent Fe(11), two equivalent Fe(17), and two equivalent Fe(8) atoms to form FeCePr2Fe9 cuboctahedra that share corners with two equivalent Fe(20)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(7)CePrFe10 cuboctahedra, corners with two equivalent Fe(12)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(14)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(16)Pr3Fe9 cuboctahedra, corners with two equivalent Fe(18)Pr3Fe9 cuboctahedra, corners with three equivalent Fe(5)CePrFe10 cuboctahedra, corners with four equivalent Fe(17)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(15)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(6)Pr2Fe10 cuboctahedra, edges with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, edges with two equivalent Fe(8)Pr2Fe10 cuboctahedra, edges with two equivalent Fe(22)Pr3Fe9 cuboctahedra,  a faceface with one Fe(5)CePrFe10 cuboctahedra,  a faceface with one Fe(16)Pr3Fe9 cuboctahedra, faces with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, faces with two equivalent Fe(17)CePr2Fe9 cuboctahedra, faces with two equivalent Fe(14)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(8)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(22)Pr3Fe9 cuboctahedra, and faces with four equivalent Fe(10)Pr2Fe10 cuboctahedra. In the twentieth Fe site, Fe(20) is bonded to one Pr(1), one Pr(3), one Ce(1), one Fe(1), two equivalent Fe(12), two equivalent Fe(18), two equivalent Fe(7), and two equivalent Fe(9) atoms to form FeCePr2Fe9 cuboctahedra that share corners with two equivalent Fe(15)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(17)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(19)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(10)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(14)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(8)Pr2Fe10 cuboctahedra, corners with three equivalent Fe(6)Pr2Fe10 cuboctahedra, corners with four equivalent Fe(18)Pr3Fe9 cuboctahedra,  an edgeedge with one Fe(5)CePrFe10 cuboctahedra,  an edgeedge with one Fe(16)Pr3Fe9 cuboctahedra, edges with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, edges with two equivalent Fe(7)CePrFe10 cuboctahedra, edges with two equivalent Fe(14)Pr2Fe10 cuboctahedra, edges with two equivalent Fe(22)Pr3Fe9 cuboctahedra,  a faceface with one Fe(15)CePr2Fe9 cuboctahedra,  a faceface with one Fe(6)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, faces with two equivalent Fe(7)CePrFe10 cuboctahedra, faces with two equivalent Fe(18)Pr3Fe9 cuboctahedra, faces with two equivalent Fe(22)Pr3Fe9 cuboctahedra, and faces with four equivalent Fe(12)Pr2Fe10 cuboctahedra. In the twenty-first Fe site, Fe(21) is bonded to one Pr(2), two equivalent Ce(1), one Fe(1), one Fe(11), one Fe(15), one Fe(17), one Fe(5), one Fe(7), one Fe(9), and two equivalent Fe(13) atoms to form FeCe2PrFe9 cuboctahedra that share  a cornercorner with one Fe(5)CePrFe10 cuboctahedra,  a cornercorner with one Fe(10)Pr2Fe10 cuboctahedra,  a cornercorner with one Fe(12)Pr2Fe10 cuboctahedra,  a cornercorner with one Fe(16)Pr3Fe9 cuboctahedra, corners with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, corners with two equivalent Fe(15)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(7)CePrFe10 cuboctahedra, corners with two equivalent Fe(8)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(18)Pr3Fe9 cuboctahedra, corners with three equivalent Fe(17)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(17)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(19)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(20)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(5)CePrFe10 cuboctahedra,  an edgeedge with one Fe(7)CePrFe10 cuboctahedra,  an edgeedge with one Fe(8)Pr2Fe10 cuboctahedra, edges with two equivalent Fe(21)Ce2PrFe9 cuboctahedra,  a faceface with one Fe(15)CePr2Fe9 cuboctahedra,  a faceface with one Fe(19)CePr2Fe9 cuboctahedra,  a faceface with one Fe(20)CePr2Fe9 cuboctahedra,  a faceface with one Fe(5)CePrFe10 cuboctahedra,  a faceface with one Fe(10)Pr2Fe10 cuboctahedra,  a faceface with one Fe(12)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, faces with two equivalent Fe(17)CePr2Fe9 cuboctahedra, and faces with two equivalent Fe(7)CePrFe10 cuboctahedra. In the twenty-second Fe site, Fe(22) is bonded to one Pr(3), two equivalent Pr(1), one Fe(10), one Fe(12), one Fe(16), one Fe(18), one Fe(2), one Fe(6), one Fe(8), and two equivalent Fe(14) atoms to form FePr3Fe9 cuboctahedra that share  a cornercorner with one Fe(15)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(6)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(17)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(7)CePrFe10 cuboctahedra, corners with two equivalent Fe(10)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(12)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(14)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(8)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(16)Pr3Fe9 cuboctahedra, corners with two equivalent Fe(22)Pr3Fe9 cuboctahedra, corners with three equivalent Fe(18)Pr3Fe9 cuboctahedra,  an edgeedge with one Fe(19)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(20)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(7)CePrFe10 cuboctahedra,  an edgeedge with one Fe(10)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(12)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(6)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(8)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(18)Pr3Fe9 cuboctahedra, edges with two equivalent Fe(22)Pr3Fe9 cuboctahedra,  a faceface with one Fe(19)CePr2Fe9 cuboctahedra,  a faceface with one Fe(20)CePr2Fe9 cuboctahedra,  a faceface with one Fe(6)Pr2Fe10 cuboctahedra,  a faceface with one Fe(16)Pr3Fe9 cuboctahedra, faces with two equivalent Fe(10)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(12)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(8)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(18)Pr3Fe9 cuboctahedra, faces with two equivalent Fe(22)Pr3Fe9 cuboctahedra, and faces with four equivalent Fe(14)Pr2Fe10 cuboctahedra.
Pr3CeFe34 crystallizes in the monoclinic Cm space group. There are three inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 19-coordinate geometry to one Fe(16), one Fe(19), one Fe(2), one Fe(20), one Fe(6), two equivalent Fe(10), two equivalent Fe(12), two equivalent Fe(14), two equivalent Fe(18), two equivalent Fe(8), and four equivalent Fe(22) atoms. The Pr(1)-Fe(16) bond length is 3.12 Å. The Pr(1)-Fe(19) bond length is 3.22 Å. The Pr(1)-Fe(2) bond length is 3.08 Å. The Pr(1)-Fe(20) bond length is 3.28 Å. The Pr(1)-Fe(6) bond length is 3.31 Å. Both Pr(1)-Fe(10) bond lengths are 3.08 Å. Both Pr(1)-Fe(12) bond lengths are 3.08 Å. Both Pr(1)-Fe(14) bond lengths are 3.07 Å. Both Pr(1)-Fe(18) bond lengths are 3.12 Å. Both Pr(1)-Fe(8) bond lengths are 3.31 Å. There are two shorter (3.21 Å) and two longer (3.27 Å) Pr(1)-Fe(22) bond lengths. In the second Pr site, Pr(2) is bonded in a 19-coordinate geometry to one Fe(15), one Fe(16), one Fe(19), one Fe(3), one Fe(5), two equivalent Fe(10), two equivalent Fe(11), two equivalent Fe(13), two equivalent Fe(21), two equivalent Fe(8), and four equivalent Fe(17) atoms. The Pr(2)-Fe(15) bond length is 3.25 Å. The Pr(2)-Fe(16) bond length is 3.22 Å. The Pr(2)-Fe(19) bond length is 3.10 Å. The Pr(2)-Fe(3) bond length is 3.08 Å. The Pr(2)-Fe(5) bond length is 3.31 Å. Both Pr(2)-Fe(10) bond lengths are 3.07 Å. Both Pr(2)-Fe(11) bond lengths are 3.08 Å. Both Pr(2)-Fe(13) bond lengths are 3.07 Å. Both Pr(2)-Fe(21) bond lengths are 3.10 Å. Both Pr(2)-Fe(8) bond lengths are 3.32 Å. There are two shorter (3.22 Å) and two longer (3.25 Å) Pr(2)-Fe(17) bond lengths. In the third Pr site, Pr(3) is bonded in a 19-coordinate geometry to one Fe(15), one Fe(16), one Fe(20), one Fe(4), one Fe(6), two equivalent Fe(12), two equivalent Fe(14), two equivalent Fe(22), two equivalent Fe(7), two equivalent Fe(9), and four equivalent Fe(18) atoms. The Pr(3)-Fe(15) bond length is 3.21 Å. The Pr(3)-Fe(16) bond length is 3.27 Å. The Pr(3)-Fe(20) bond length is 3.12 Å. The Pr(3)-Fe(4) bond length is 3.08 Å. The Pr(3)-Fe(6) bond length is 3.31 Å. Both Pr(3)-Fe(12) bond lengths are 3.07 Å. Both Pr(3)-Fe(14) bond lengths are 3.07 Å. Both Pr(3)-Fe(22) bond lengths are 3.12 Å. Both Pr(3)-Fe(7) bond lengths are 3.30 Å. Both Pr(3)-Fe(9) bond lengths are 3.07 Å. There are two shorter (3.21 Å) and two longer (3.27 Å) Pr(3)-Fe(18) bond lengths. Ce(1) is bonded in a 19-coordinate geometry to one Fe(1), one Fe(15), one Fe(19), one Fe(20), one Fe(5), two equivalent Fe(11), two equivalent Fe(13), two equivalent Fe(17), two equivalent Fe(7), two equivalent Fe(9), and four equivalent Fe(21) atoms. The Ce(1)-Fe(1) bond length is 3.07 Å. The Ce(1)-Fe(15) bond length is 3.09 Å. The Ce(1)-Fe(19) bond length is 3.25 Å. The Ce(1)-Fe(20) bond length is 3.20 Å. The Ce(1)-Fe(5) bond length is 3.32 Å. Both Ce(1)-Fe(11) bond lengths are 3.06 Å. Both Ce(1)-Fe(13) bond lengths are 3.07 Å. Both Ce(1)-Fe(17) bond lengths are 3.09 Å. Both Ce(1)-Fe(7) bond lengths are 3.32 Å. Both Ce(1)-Fe(9) bond lengths are 3.05 Å. There are two shorter (3.22 Å) and two longer (3.26 Å) Ce(1)-Fe(21) bond lengths. There are twenty-two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 14-coordinate geometry to one Ce(1), one Fe(20), one Fe(4), one Fe(5), two equivalent Fe(12), two equivalent Fe(13), two equivalent Fe(21), two equivalent Fe(7), and two equivalent Fe(9) atoms. The Fe(1)-Fe(20) bond length is 2.63 Å. The Fe(1)-Fe(4) bond length is 2.42 Å. The Fe(1)-Fe(5) bond length is 2.62 Å. Both Fe(1)-Fe(12) bond lengths are 2.75 Å. Both Fe(1)-Fe(13) bond lengths are 2.76 Å. Both Fe(1)-Fe(21) bond lengths are 2.64 Å. Both Fe(1)-Fe(7) bond lengths are 2.63 Å. Both Fe(1)-Fe(9) bond lengths are 2.77 Å. In the second Fe site, Fe(2) is bonded in a 14-coordinate geometry to one Pr(1), one Fe(19), one Fe(3), one Fe(6), two equivalent Fe(10), two equivalent Fe(11), two equivalent Fe(14), two equivalent Fe(22), and two equivalent Fe(8) atoms. The Fe(2)-Fe(19) bond length is 2.66 Å. The Fe(2)-Fe(3) bond length is 2.41 Å. The Fe(2)-Fe(6) bond length is 2.63 Å. Both Fe(2)-Fe(10) bond lengths are 2.75 Å. Both Fe(2)-Fe(11) bond lengths are 2.76 Å. Both Fe(2)-Fe(14) bond lengths are 2.75 Å. Both Fe(2)-Fe(22) bond lengths are 2.65 Å. Both Fe(2)-Fe(8) bond lengths are 2.63 Å. In the third Fe site, Fe(3) is bonded in a 14-coordinate geometry to one Pr(2), one Fe(16), one Fe(2), one Fe(5), two equivalent Fe(10), two equivalent Fe(11), two equivalent Fe(14), two equivalent Fe(17), and two equivalent Fe(8) atoms. The Fe(3)-Fe(16) bond length is 2.65 Å. The Fe(3)-Fe(5) bond length is 2.62 Å. Both Fe(3)-Fe(10) bond lengths are 2.75 Å. Both Fe(3)-Fe(11) bond lengths are 2.76 Å. Both Fe(3)-Fe(14) bond lengths are 2.75 Å. Both Fe(3)-Fe(17) bond lengths are 2.66 Å. Both Fe(3)-Fe(8) bond lengths are 2.63 Å. In the fourth Fe site, Fe(4) is bonded in a 14-coordinate geometry to one Pr(3), one Fe(1), one Fe(15), one Fe(6), two equivalent Fe(12), two equivalent Fe(13), two equivalent Fe(18), two equivalent Fe(7), and two equivalent Fe(9) atoms. The Fe(4)-Fe(15) bond length is 2.66 Å. The Fe(4)-Fe(6) bond length is 2.63 Å. Both Fe(4)-Fe(12) bond lengths are 2.75 Å. Both Fe(4)-Fe(13) bond lengths are 2.75 Å. Both Fe(4)-Fe(18) bond lengths are 2.65 Å. Both Fe(4)-Fe(7) bond lengths are 2.63 Å. Both Fe(4)-Fe(9) bond lengths are 2.76 Å. In the fifth Fe site, Fe(5) is bonded to one Pr(2), one Ce(1), one Fe(1), one Fe(3), two equivalent Fe(11), two equivalent Fe(13), two equivalent Fe(17), and two equivalent Fe(21) atoms to form FeCePrFe10 cuboctahedra that share corners with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, corners with two equivalent Fe(17)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(7)CePrFe10 cuboctahedra, corners with two equivalent Fe(10)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(12)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(14)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(8)Pr2Fe10 cuboctahedra, corners with three equivalent Fe(15)CePr2Fe9 cuboctahedra, corners with three equivalent Fe(19)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(20)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(16)Pr3Fe9 cuboctahedra, edges with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, edges with two equivalent Fe(17)CePr2Fe9 cuboctahedra,  a faceface with one Fe(15)CePr2Fe9 cuboctahedra,  a faceface with one Fe(19)CePr2Fe9 cuboctahedra, faces with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, faces with two equivalent Fe(17)CePr2Fe9 cuboctahedra, faces with two equivalent Fe(7)CePrFe10 cuboctahedra, faces with two equivalent Fe(10)Pr2Fe10 cuboctahedra, and faces with two equivalent Fe(8)Pr2Fe10 cuboctahedra. Both Fe(5)-Fe(11) bond lengths are 2.45 Å. Both Fe(5)-Fe(13) bond lengths are 2.45 Å. Both Fe(5)-Fe(17) bond lengths are 2.47 Å. Both Fe(5)-Fe(21) bond lengths are 2.47 Å. In the sixth Fe site, Fe(6) is bonded to one Pr(1), one Pr(3), one Fe(2), one Fe(4), two equivalent Fe(12), two equivalent Fe(14), two equivalent Fe(18), and two equivalent Fe(22) atoms to form FePr2Fe10 cuboctahedra that share corners with two equivalent Fe(7)CePrFe10 cuboctahedra, corners with two equivalent Fe(10)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(8)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(18)Pr3Fe9 cuboctahedra, corners with two equivalent Fe(22)Pr3Fe9 cuboctahedra, corners with three equivalent Fe(20)CePr2Fe9 cuboctahedra, corners with three equivalent Fe(16)Pr3Fe9 cuboctahedra,  an edgeedge with one Fe(15)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(19)CePr2Fe9 cuboctahedra, edges with two equivalent Fe(12)Pr2Fe10 cuboctahedra, edges with two equivalent Fe(14)Pr2Fe10 cuboctahedra, edges with two equivalent Fe(18)Pr3Fe9 cuboctahedra, edges with two equivalent Fe(22)Pr3Fe9 cuboctahedra,  a faceface with one Fe(20)CePr2Fe9 cuboctahedra,  a faceface with one Fe(16)Pr3Fe9 cuboctahedra, faces with two equivalent Fe(7)CePrFe10 cuboctahedra, faces with two equivalent Fe(10)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(12)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(14)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(8)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(18)Pr3Fe9 cuboctahedra, and faces with two equivalent Fe(22)Pr3Fe9 cuboctahedra. Both Fe(6)-Fe(12) bond lengths are 2.45 Å. Both Fe(6)-Fe(14) bond lengths are 2.45 Å. Both Fe(6)-Fe(18) bond lengths are 2.47 Å. Both Fe(6)-Fe(22) bond lengths are 2.47 Å. In the seventh Fe site, Fe(7) is bonded to one Pr(3), one Ce(1), one Fe(1), one Fe(12), one Fe(13), one Fe(15), one Fe(18), one Fe(20), one Fe(21), one Fe(4), and two equivalent Fe(9) atoms to form FeCePrFe10 cuboctahedra that share  a cornercorner with one Fe(19)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(5)CePrFe10 cuboctahedra,  a cornercorner with one Fe(14)Pr2Fe10 cuboctahedra,  a cornercorner with one Fe(6)Pr2Fe10 cuboctahedra,  a cornercorner with one Fe(16)Pr3Fe9 cuboctahedra, corners with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, corners with two equivalent Fe(17)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(7)CePrFe10 cuboctahedra, corners with two equivalent Fe(12)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(18)Pr3Fe9 cuboctahedra, corners with two equivalent Fe(22)Pr3Fe9 cuboctahedra,  an edgeedge with one Fe(21)Ce2PrFe9 cuboctahedra,  an edgeedge with one Fe(15)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(17)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(20)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(14)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(18)Pr3Fe9 cuboctahedra,  an edgeedge with one Fe(22)Pr3Fe9 cuboctahedra,  a faceface with one Fe(15)CePr2Fe9 cuboctahedra,  a faceface with one Fe(20)CePr2Fe9 cuboctahedra,  a faceface with one Fe(5)CePrFe10 cuboctahedra,  a faceface with one Fe(6)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, faces with two equivalent Fe(7)CePrFe10 cuboctahedra, faces with two equivalent Fe(18)Pr3Fe9 cuboctahedra, and faces with three equivalent Fe(12)Pr2Fe10 cuboctahedra. The Fe(7)-Fe(12) bond length is 2.44 Å. The Fe(7)-Fe(13) bond length is 2.44 Å. The Fe(7)-Fe(15) bond length is 2.47 Å. The Fe(7)-Fe(18) bond length is 2.46 Å. The Fe(7)-Fe(20) bond length is 2.46 Å. The Fe(7)-Fe(21) bond length is 2.47 Å. Both Fe(7)-Fe(9) bond lengths are 2.45 Å. In the eighth Fe site, Fe(8) is bonded to one Pr(1), one Pr(2), one Fe(11), one Fe(14), one Fe(16), one Fe(17), one Fe(19), one Fe(2), one Fe(22), one Fe(3), and two equivalent Fe(10) atoms to form FePr2Fe10 cuboctahedra that share  a cornercorner with one Fe(15)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(20)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(5)CePrFe10 cuboctahedra,  a cornercorner with one Fe(12)Pr2Fe10 cuboctahedra,  a cornercorner with one Fe(6)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, corners with two equivalent Fe(17)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(10)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(14)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(8)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(18)Pr3Fe9 cuboctahedra, corners with two equivalent Fe(22)Pr3Fe9 cuboctahedra,  an edgeedge with one Fe(21)Ce2PrFe9 cuboctahedra,  an edgeedge with one Fe(17)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(19)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(12)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(16)Pr3Fe9 cuboctahedra,  an edgeedge with one Fe(18)Pr3Fe9 cuboctahedra,  an edgeedge with one Fe(22)Pr3Fe9 cuboctahedra, edges with two equivalent Fe(10)Pr2Fe10 cuboctahedra,  a faceface with one Fe(19)CePr2Fe9 cuboctahedra,  a faceface with one Fe(5)CePrFe10 cuboctahedra,  a faceface with one Fe(6)Pr2Fe10 cuboctahedra,  a faceface with one Fe(16)Pr3Fe9 cuboctahedra, faces with two equivalent Fe(17)CePr2Fe9 cuboctahedra, faces with two equivalent Fe(10)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(8)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(22)Pr3Fe9 cuboctahedra, and faces with three equivalent Fe(14)Pr2Fe10 cuboctahedra. The Fe(8)-Fe(11) bond length is 2.45 Å. The Fe(8)-Fe(14) bond length is 2.45 Å. The Fe(8)-Fe(16) bond length is 2.47 Å. The Fe(8)-Fe(17) bond length is 2.47 Å. The Fe(8)-Fe(19) bond length is 2.47 Å. The Fe(8)-Fe(22) bond length is 2.47 Å. Both Fe(8)-Fe(10) bond lengths are 2.45 Å. In the ninth Fe site, Fe(9) is bonded in a 12-coordinate geometry to one Pr(3), one Ce(1), one Fe(1), one Fe(12), one Fe(13), one Fe(15), one Fe(18), one Fe(20), one Fe(21), one Fe(4), and two equivalent Fe(7) atoms. The Fe(9)-Fe(12) bond length is 2.48 Å. The Fe(9)-Fe(13) bond length is 2.47 Å. The Fe(9)-Fe(15) bond length is 2.66 Å. The Fe(9)-Fe(18) bond length is 2.55 Å. The Fe(9)-Fe(20) bond length is 2.66 Å. The Fe(9)-Fe(21) bond length is 2.54 Å. In the tenth Fe site, Fe(10) is bonded to one Pr(1), one Pr(2), one Fe(11), one Fe(14), one Fe(16), one Fe(17), one Fe(19), one Fe(2), one Fe(22), one Fe(3), and two equivalent Fe(8) atoms to form distorted FePr2Fe10 cuboctahedra that share  a cornercorner with one Fe(21)Ce2PrFe9 cuboctahedra,  a cornercorner with one Fe(15)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(20)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(5)CePrFe10 cuboctahedra,  a cornercorner with one Fe(6)Pr2Fe10 cuboctahedra,  a cornercorner with one Fe(18)Pr3Fe9 cuboctahedra, corners with two equivalent Fe(17)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(10)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(14)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(8)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(22)Pr3Fe9 cuboctahedra, corners with three equivalent Fe(12)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(17)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(10)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(22)Pr3Fe9 cuboctahedra, edges with two equivalent Fe(8)Pr2Fe10 cuboctahedra,  a faceface with one Fe(21)Ce2PrFe9 cuboctahedra,  a faceface with one Fe(5)CePrFe10 cuboctahedra,  a faceface with one Fe(10)Pr2Fe10 cuboctahedra,  a faceface with one Fe(6)Pr2Fe10 cuboctahedra,  a faceface with one Fe(18)Pr3Fe9 cuboctahedra, faces with two equivalent Fe(17)CePr2Fe9 cuboctahedra, faces with two equivalent Fe(19)CePr2Fe9 cuboctahedra, faces with two equivalent Fe(8)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(16)Pr3Fe9 cuboctahedra, faces with two equivalent Fe(22)Pr3Fe9 cuboctahedra, and faces with three equivalent Fe(14)Pr2Fe10 cuboctahedra. The Fe(10)-Fe(11) bond length is 2.48 Å. The Fe(10)-Fe(14) bond length is 2.47 Å. The Fe(10)-Fe(16) bond length is 2.68 Å. The Fe(10)-Fe(17) bond length is 2.55 Å. The Fe(10)-Fe(19) bond length is 2.68 Å. The Fe(10)-Fe(22) bond length is 2.55 Å. In the eleventh Fe site, Fe(11) is bonded in a 12-coordinate geometry to one Pr(2), one Ce(1), one Fe(10), one Fe(11), one Fe(19), one Fe(2), one Fe(21), one Fe(3), one Fe(5), one Fe(8), and two equivalent Fe(17) atoms. The Fe(11)-Fe(11) bond length is 2.46 Å. The Fe(11)-Fe(19) bond length is 2.54 Å. The Fe(11)-Fe(21) bond length is 2.66 Å. There is one shorter (2.56 Å) and one longer (2.67 Å) Fe(11)-Fe(17) bond length. In the twelfth Fe site, Fe(12) is bonded to one Pr(1), one Pr(3), one Fe(1), one Fe(12), one Fe(20), one Fe(22), one Fe(4), one Fe(6), one Fe(7), one Fe(9), and two equivalent Fe(18) atoms to form distorted FePr2Fe10 cuboctahedra that share  a cornercorner with one Fe(21)Ce2PrFe9 cuboctahedra,  a cornercorner with one Fe(15)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(19)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(5)CePrFe10 cuboctahedra,  a cornercorner with one Fe(8)Pr2Fe10 cuboctahedra,  a cornercorner with one Fe(16)Pr3Fe9 cuboctahedra, corners with two equivalent Fe(7)CePrFe10 cuboctahedra, corners with two equivalent Fe(18)Pr3Fe9 cuboctahedra, corners with two equivalent Fe(22)Pr3Fe9 cuboctahedra, corners with three equivalent Fe(10)Pr2Fe10 cuboctahedra, corners with three equivalent Fe(12)Pr2Fe10 cuboctahedra, corners with three equivalent Fe(14)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(6)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(8)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(16)Pr3Fe9 cuboctahedra,  an edgeedge with one Fe(22)Pr3Fe9 cuboctahedra,  a faceface with one Fe(21)Ce2PrFe9 cuboctahedra,  a faceface with one Fe(15)CePr2Fe9 cuboctahedra,  a faceface with one Fe(12)Pr2Fe10 cuboctahedra,  a faceface with one Fe(6)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(20)CePr2Fe9 cuboctahedra, faces with two equivalent Fe(14)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(22)Pr3Fe9 cuboctahedra, faces with three equivalent Fe(7)CePrFe10 cuboctahedra, and faces with four equivalent Fe(18)Pr3Fe9 cuboctahedra. The Fe(12)-Fe(12) bond length is 2.48 Å. The Fe(12)-Fe(20) bond length is 2.55 Å. The Fe(12)-Fe(22) bond length is 2.68 Å. There is one shorter (2.54 Å) and one longer (2.68 Å) Fe(12)-Fe(18) bond length. In the thirteenth Fe site, Fe(13) is bonded in a 12-coordinate geometry to one Pr(2), one Ce(1), one Fe(1), one Fe(13), one Fe(15), one Fe(17), one Fe(4), one Fe(5), one Fe(7), one Fe(9), and two equivalent Fe(21) atoms. The Fe(13)-Fe(13) bond length is 2.49 Å. The Fe(13)-Fe(15) bond length is 2.56 Å. The Fe(13)-Fe(17) bond length is 2.66 Å. There is one shorter (2.55 Å) and one longer (2.67 Å) Fe(13)-Fe(21) bond length. In the fourteenth Fe site, Fe(14) is bonded to one Pr(1), one Pr(3), one Fe(10), one Fe(14), one Fe(16), one Fe(18), one Fe(2), one Fe(3), one Fe(6), one Fe(8), and two equivalent Fe(22) atoms to form distorted FePr2Fe10 cuboctahedra that share  a cornercorner with one Fe(15)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(17)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(19)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(20)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(5)CePrFe10 cuboctahedra,  a cornercorner with one Fe(7)CePrFe10 cuboctahedra, corners with two equivalent Fe(10)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(8)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(18)Pr3Fe9 cuboctahedra, corners with two equivalent Fe(22)Pr3Fe9 cuboctahedra, corners with three equivalent Fe(12)Pr2Fe10 cuboctahedra, corners with three equivalent Fe(14)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(20)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(7)CePrFe10 cuboctahedra,  an edgeedge with one Fe(6)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(18)Pr3Fe9 cuboctahedra,  a faceface with one Fe(17)CePr2Fe9 cuboctahedra,  a faceface with one Fe(19)CePr2Fe9 cuboctahedra,  a faceface with one Fe(14)Pr2Fe10 cuboctahedra,  a faceface with one Fe(6)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(12)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(16)Pr3Fe9 cuboctahedra, faces with two equivalent Fe(18)Pr3Fe9 cuboctahedra, faces with three equivalent Fe(10)Pr2Fe10 cuboctahedra, faces with three equivalent Fe(8)Pr2Fe10 cuboctahedra, and faces with four equivalent Fe(22)Pr3Fe9 cuboctahedra. The Fe(14)-Fe(14) bond length is 2.47 Å. The Fe(14)-Fe(16) bond length is 2.55 Å. The Fe(14)-Fe(18) bond length is 2.68 Å. There is one shorter (2.55 Å) and one longer (2.68 Å) Fe(14)-Fe(22) bond length. In the fifteenth Fe site, Fe(15) is bonded to one Pr(2), one Pr(3), one Ce(1), one Fe(4), two equivalent Fe(13), two equivalent Fe(21), two equivalent Fe(7), and two equivalent Fe(9) atoms to form FeCePr2Fe9 cuboctahedra that share corners with two equivalent Fe(20)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(10)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(12)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(14)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(8)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(16)Pr3Fe9 cuboctahedra, corners with two equivalent Fe(22)Pr3Fe9 cuboctahedra, corners with three equivalent Fe(5)CePrFe10 cuboctahedra, corners with four equivalent Fe(21)Ce2PrFe9 cuboctahedra,  an edgeedge with one Fe(19)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(6)Pr2Fe10 cuboctahedra, edges with two equivalent Fe(17)CePr2Fe9 cuboctahedra, edges with two equivalent Fe(7)CePrFe10 cuboctahedra, edges with two equivalent Fe(18)Pr3Fe9 cuboctahedra,  a faceface with one Fe(20)CePr2Fe9 cuboctahedra,  a faceface with one Fe(5)CePrFe10 cuboctahedra, faces with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, faces with two equivalent Fe(17)CePr2Fe9 cuboctahedra, faces with two equivalent Fe(7)CePrFe10 cuboctahedra, faces with two equivalent Fe(12)Pr2Fe10 cuboctahedra, and faces with two equivalent Fe(18)Pr3Fe9 cuboctahedra. Both Fe(15)-Fe(21) bond lengths are 2.51 Å. In the sixteenth Fe site, Fe(16) is bonded to one Pr(1), one Pr(2), one Pr(3), one Fe(3), two equivalent Fe(10), two equivalent Fe(14), two equivalent Fe(22), and two equivalent Fe(8) atoms to form FePr3Fe9 cuboctahedra that share corners with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, corners with two equivalent Fe(15)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(19)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(7)CePrFe10 cuboctahedra, corners with two equivalent Fe(12)Pr2Fe10 cuboctahedra, corners with three equivalent Fe(6)Pr2Fe10 cuboctahedra, corners with four equivalent Fe(22)Pr3Fe9 cuboctahedra,  an edgeedge with one Fe(20)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(5)CePrFe10 cuboctahedra, edges with two equivalent Fe(17)CePr2Fe9 cuboctahedra, edges with two equivalent Fe(12)Pr2Fe10 cuboctahedra, edges with two equivalent Fe(8)Pr2Fe10 cuboctahedra, edges with two equivalent Fe(18)Pr3Fe9 cuboctahedra,  a faceface with one Fe(19)CePr2Fe9 cuboctahedra,  a faceface with one Fe(6)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(17)CePr2Fe9 cuboctahedra, faces with two equivalent Fe(8)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(18)Pr3Fe9 cuboctahedra, faces with two equivalent Fe(22)Pr3Fe9 cuboctahedra, faces with four equivalent Fe(10)Pr2Fe10 cuboctahedra, and faces with four equivalent Fe(14)Pr2Fe10 cuboctahedra. Both Fe(16)-Fe(22) bond lengths are 2.52 Å. In the seventeenth Fe site, Fe(17) is bonded to two equivalent Pr(2), one Ce(1), one Fe(10), one Fe(13), one Fe(19), one Fe(21), one Fe(3), one Fe(5), one Fe(8), and two equivalent Fe(11) atoms to form FeCePr2Fe9 cuboctahedra that share  a cornercorner with one Fe(20)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(5)CePrFe10 cuboctahedra,  a cornercorner with one Fe(14)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(17)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(19)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(7)CePrFe10 cuboctahedra, corners with two equivalent Fe(10)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(8)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(22)Pr3Fe9 cuboctahedra, corners with three equivalent Fe(21)Ce2PrFe9 cuboctahedra,  an edgeedge with one Fe(21)Ce2PrFe9 cuboctahedra,  an edgeedge with one Fe(15)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(5)CePrFe10 cuboctahedra,  an edgeedge with one Fe(7)CePrFe10 cuboctahedra,  an edgeedge with one Fe(10)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(8)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(16)Pr3Fe9 cuboctahedra, edges with two equivalent Fe(17)CePr2Fe9 cuboctahedra,  a faceface with one Fe(15)CePr2Fe9 cuboctahedra,  a faceface with one Fe(19)CePr2Fe9 cuboctahedra,  a faceface with one Fe(5)CePrFe10 cuboctahedra,  a faceface with one Fe(14)Pr2Fe10 cuboctahedra,  a faceface with one Fe(16)Pr3Fe9 cuboctahedra, faces with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, faces with two equivalent Fe(17)CePr2Fe9 cuboctahedra, faces with two equivalent Fe(10)Pr2Fe10 cuboctahedra, and faces with two equivalent Fe(8)Pr2Fe10 cuboctahedra. The Fe(17)-Fe(19) bond length is 2.50 Å. The Fe(17)-Fe(21) bond length is 2.50 Å. In the eighteenth Fe site, Fe(18) is bonded to one Pr(1), two equivalent Pr(3), one Fe(14), one Fe(20), one Fe(22), one Fe(4), one Fe(6), one Fe(7), one Fe(9), and two equivalent Fe(12) atoms to form FePr3Fe9 cuboctahedra that share  a cornercorner with one Fe(19)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(10)Pr2Fe10 cuboctahedra,  a cornercorner with one Fe(6)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, corners with two equivalent Fe(20)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(7)CePrFe10 cuboctahedra, corners with two equivalent Fe(12)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(14)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(8)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(18)Pr3Fe9 cuboctahedra, corners with three equivalent Fe(22)Pr3Fe9 cuboctahedra,  an edgeedge with one Fe(15)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(7)CePrFe10 cuboctahedra,  an edgeedge with one Fe(14)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(6)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(8)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(16)Pr3Fe9 cuboctahedra,  an edgeedge with one Fe(22)Pr3Fe9 cuboctahedra, edges with two equivalent Fe(18)Pr3Fe9 cuboctahedra,  a faceface with one Fe(15)CePr2Fe9 cuboctahedra,  a faceface with one Fe(20)CePr2Fe9 cuboctahedra,  a faceface with one Fe(10)Pr2Fe10 cuboctahedra,  a faceface with one Fe(6)Pr2Fe10 cuboctahedra,  a faceface with one Fe(16)Pr3Fe9 cuboctahedra, faces with two equivalent Fe(7)CePrFe10 cuboctahedra, faces with two equivalent Fe(14)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(18)Pr3Fe9 cuboctahedra, faces with two equivalent Fe(22)Pr3Fe9 cuboctahedra, and faces with four equivalent Fe(12)Pr2Fe10 cuboctahedra. The Fe(18)-Fe(20) bond length is 2.52 Å. The Fe(18)-Fe(22) bond length is 2.52 Å. In the nineteenth Fe site, Fe(19) is bonded to one Pr(1), one Pr(2), one Ce(1), one Fe(2), two equivalent Fe(10), two equivalent Fe(11), two equivalent Fe(17), and two equivalent Fe(8) atoms to form FeCePr2Fe9 cuboctahedra that share corners with two equivalent Fe(20)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(7)CePrFe10 cuboctahedra, corners with two equivalent Fe(12)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(14)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(16)Pr3Fe9 cuboctahedra, corners with two equivalent Fe(18)Pr3Fe9 cuboctahedra, corners with three equivalent Fe(5)CePrFe10 cuboctahedra, corners with four equivalent Fe(17)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(15)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(6)Pr2Fe10 cuboctahedra, edges with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, edges with two equivalent Fe(8)Pr2Fe10 cuboctahedra, edges with two equivalent Fe(22)Pr3Fe9 cuboctahedra,  a faceface with one Fe(5)CePrFe10 cuboctahedra,  a faceface with one Fe(16)Pr3Fe9 cuboctahedra, faces with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, faces with two equivalent Fe(17)CePr2Fe9 cuboctahedra, faces with two equivalent Fe(14)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(8)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(22)Pr3Fe9 cuboctahedra, and faces with four equivalent Fe(10)Pr2Fe10 cuboctahedra. In the twentieth Fe site, Fe(20) is bonded to one Pr(1), one Pr(3), one Ce(1), one Fe(1), two equivalent Fe(12), two equivalent Fe(18), two equivalent Fe(7), and two equivalent Fe(9) atoms to form FeCePr2Fe9 cuboctahedra that share corners with two equivalent Fe(15)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(17)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(19)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(10)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(14)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(8)Pr2Fe10 cuboctahedra, corners with three equivalent Fe(6)Pr2Fe10 cuboctahedra, corners with four equivalent Fe(18)Pr3Fe9 cuboctahedra,  an edgeedge with one Fe(5)CePrFe10 cuboctahedra,  an edgeedge with one Fe(16)Pr3Fe9 cuboctahedra, edges with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, edges with two equivalent Fe(7)CePrFe10 cuboctahedra, edges with two equivalent Fe(14)Pr2Fe10 cuboctahedra, edges with two equivalent Fe(22)Pr3Fe9 cuboctahedra,  a faceface with one Fe(15)CePr2Fe9 cuboctahedra,  a faceface with one Fe(6)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, faces with two equivalent Fe(7)CePrFe10 cuboctahedra, faces with two equivalent Fe(18)Pr3Fe9 cuboctahedra, faces with two equivalent Fe(22)Pr3Fe9 cuboctahedra, and faces with four equivalent Fe(12)Pr2Fe10 cuboctahedra. In the twenty-first Fe site, Fe(21) is bonded to one Pr(2), two equivalent Ce(1), one Fe(1), one Fe(11), one Fe(15), one Fe(17), one Fe(5), one Fe(7), one Fe(9), and two equivalent Fe(13) atoms to form FeCe2PrFe9 cuboctahedra that share  a cornercorner with one Fe(5)CePrFe10 cuboctahedra,  a cornercorner with one Fe(10)Pr2Fe10 cuboctahedra,  a cornercorner with one Fe(12)Pr2Fe10 cuboctahedra,  a cornercorner with one Fe(16)Pr3Fe9 cuboctahedra, corners with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, corners with two equivalent Fe(15)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(7)CePrFe10 cuboctahedra, corners with two equivalent Fe(8)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(18)Pr3Fe9 cuboctahedra, corners with three equivalent Fe(17)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(17)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(19)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(20)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(5)CePrFe10 cuboctahedra,  an edgeedge with one Fe(7)CePrFe10 cuboctahedra,  an edgeedge with one Fe(8)Pr2Fe10 cuboctahedra, edges with two equivalent Fe(21)Ce2PrFe9 cuboctahedra,  a faceface with one Fe(15)CePr2Fe9 cuboctahedra,  a faceface with one Fe(19)CePr2Fe9 cuboctahedra,  a faceface with one Fe(20)CePr2Fe9 cuboctahedra,  a faceface with one Fe(5)CePrFe10 cuboctahedra,  a faceface with one Fe(10)Pr2Fe10 cuboctahedra,  a faceface with one Fe(12)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(21)Ce2PrFe9 cuboctahedra, faces with two equivalent Fe(17)CePr2Fe9 cuboctahedra, and faces with two equivalent Fe(7)CePrFe10 cuboctahedra. In the twenty-second Fe site, Fe(22) is bonded to one Pr(3), two equivalent Pr(1), one Fe(10), one Fe(12), one Fe(16), one Fe(18), one Fe(2), one Fe(6), one Fe(8), and two equivalent Fe(14) atoms to form FePr3Fe9 cuboctahedra that share  a cornercorner with one Fe(15)CePr2Fe9 cuboctahedra,  a cornercorner with one Fe(6)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(17)CePr2Fe9 cuboctahedra, corners with two equivalent Fe(7)CePrFe10 cuboctahedra, corners with two equivalent Fe(10)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(12)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(14)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(8)Pr2Fe10 cuboctahedra, corners with two equivalent Fe(16)Pr3Fe9 cuboctahedra, corners with two equivalent Fe(22)Pr3Fe9 cuboctahedra, corners with three equivalent Fe(18)Pr3Fe9 cuboctahedra,  an edgeedge with one Fe(19)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(20)CePr2Fe9 cuboctahedra,  an edgeedge with one Fe(7)CePrFe10 cuboctahedra,  an edgeedge with one Fe(10)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(12)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(6)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(8)Pr2Fe10 cuboctahedra,  an edgeedge with one Fe(18)Pr3Fe9 cuboctahedra, edges with two equivalent Fe(22)Pr3Fe9 cuboctahedra,  a faceface with one Fe(19)CePr2Fe9 cuboctahedra,  a faceface with one Fe(20)CePr2Fe9 cuboctahedra,  a faceface with one Fe(6)Pr2Fe10 cuboctahedra,  a faceface with one Fe(16)Pr3Fe9 cuboctahedra, faces with two equivalent Fe(10)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(12)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(8)Pr2Fe10 cuboctahedra, faces with two equivalent Fe(18)Pr3Fe9 cuboctahedra, faces with two equivalent Fe(22)Pr3Fe9 cuboctahedra, and faces with four equivalent Fe(14)Pr2Fe10 cuboctahedra.