NaSmF4 crystallizes in the triclinic P1 space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a distorted octahedral geometry to one F(11), one F(2), one F(3), one F(5), one F(7), and one F(9) atom. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to one F(1), one F(10), one F(12), one F(4), one F(6), and one F(8) atom. In the third Na site, Na(3) is bonded in a 9-coordinate geometry to one F(1), one F(12), one F(2), one F(3), one F(4), one F(5), one F(6), one F(7), and one F(9) atom. There are three inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 9-coordinate geometry to one F(1), one F(10), one F(11), one F(12), one F(3), one F(6), one F(7), one F(8), and one F(9) atom. In the second Sm site, Sm(2) is bonded in a 9-coordinate geometry to one F(10), one F(11), one F(12), one F(2), one F(4), one F(5), one F(7), one F(8), and one F(9) atom. In the third Sm site, Sm(3) is bonded in a 9-coordinate geometry to one F(1), one F(10), one F(11), one F(2), one F(3), one F(4), one F(5), one F(6), and one F(8) atom. There are twelve inequivalent F sites. In the first F site, F(1) is bonded to one Na(2), one Na(3), one Sm(1), and one Sm(3) atom to form distorted FNa2Sm2 tetrahedra that share  a cornercorner with one F(12)Na2Sm2 tetrahedra,  a cornercorner with one F(3)Na2Sm2 tetrahedra,  a cornercorner with one F(10)NaSm3 tetrahedra,  a cornercorner with one F(8)NaSm3 tetrahedra, corners with two equivalent F(2)Na2Sm2 tetrahedra, corners with two equivalent F(7)Na2Sm2 tetrahedra, corners with two equivalent F(11)NaSm3 tetrahedra, corners with three equivalent F(4)Na2Sm2 tetrahedra, corners with four equivalent F(6)Na2Sm2 tetrahedra,  an edgeedge with one F(12)Na2Sm2 tetrahedra,  an edgeedge with one F(3)Na2Sm2 tetrahedra,  an edgeedge with one F(9)Na2Sm2 tetrahedra,  an edgeedge with one F(10)NaSm3 tetrahedra,  an edgeedge with one F(8)NaSm3 tetrahedra, and  an edgeedge with one F(5)Na2Sm2 trigonal pyramid. In the second F site, F(2) is bonded to one Na(1), one Na(3), one Sm(2), and one Sm(3) atom to form FNa2Sm2 tetrahedra that share  a cornercorner with one F(4)Na2Sm2 tetrahedra,  a cornercorner with one F(7)Na2Sm2 tetrahedra,  a cornercorner with one F(9)Na2Sm2 tetrahedra,  a cornercorner with one F(11)NaSm3 tetrahedra, corners with two equivalent F(1)Na2Sm2 tetrahedra, corners with two equivalent F(12)Na2Sm2 tetrahedra, corners with two equivalent F(8)NaSm3 tetrahedra, corners with three equivalent F(3)Na2Sm2 tetrahedra, corners with four equivalent F(5)Na2Sm2 trigonal pyramids,  an edgeedge with one F(4)Na2Sm2 tetrahedra,  an edgeedge with one F(6)Na2Sm2 tetrahedra,  an edgeedge with one F(7)Na2Sm2 tetrahedra,  an edgeedge with one F(9)Na2Sm2 tetrahedra,  an edgeedge with one F(10)NaSm3 tetrahedra, and  an edgeedge with one F(11)NaSm3 tetrahedra. In the third F site, F(3) is bonded to one Na(1), one Na(3), one Sm(1), and one Sm(3) atom to form distorted FNa2Sm2 tetrahedra that share  a cornercorner with one F(1)Na2Sm2 tetrahedra,  a cornercorner with one F(7)Na2Sm2 tetrahedra,  a cornercorner with one F(9)Na2Sm2 tetrahedra,  a cornercorner with one F(11)NaSm3 tetrahedra, corners with two equivalent F(4)Na2Sm2 tetrahedra, corners with two equivalent F(10)NaSm3 tetrahedra, corners with two equivalent F(8)NaSm3 tetrahedra, corners with three equivalent F(2)Na2Sm2 tetrahedra, corners with three equivalent F(6)Na2Sm2 tetrahedra,  a cornercorner with one F(5)Na2Sm2 trigonal pyramid,  an edgeedge with one F(1)Na2Sm2 tetrahedra,  an edgeedge with one F(12)Na2Sm2 tetrahedra,  an edgeedge with one F(7)Na2Sm2 tetrahedra,  an edgeedge with one F(9)Na2Sm2 tetrahedra,  an edgeedge with one F(11)NaSm3 tetrahedra, and  an edgeedge with one F(5)Na2Sm2 trigonal pyramid. In the fourth F site, F(4) is bonded to one Na(2), one Na(3), one Sm(2), and one Sm(3) atom to form FNa2Sm2 tetrahedra that share  a cornercorner with one F(12)Na2Sm2 tetrahedra,  a cornercorner with one F(2)Na2Sm2 tetrahedra,  a cornercorner with one F(6)Na2Sm2 tetrahedra,  a cornercorner with one F(10)NaSm3 tetrahedra,  a cornercorner with one F(8)NaSm3 tetrahedra, corners with two equivalent F(3)Na2Sm2 tetrahedra, corners with two equivalent F(7)Na2Sm2 tetrahedra, corners with two equivalent F(9)Na2Sm2 tetrahedra, corners with three equivalent F(1)Na2Sm2 tetrahedra, corners with three equivalent F(5)Na2Sm2 trigonal pyramids,  an edgeedge with one F(12)Na2Sm2 tetrahedra,  an edgeedge with one F(2)Na2Sm2 tetrahedra,  an edgeedge with one F(6)Na2Sm2 tetrahedra,  an edgeedge with one F(10)NaSm3 tetrahedra,  an edgeedge with one F(11)NaSm3 tetrahedra, and  an edgeedge with one F(8)NaSm3 tetrahedra. In the fifth F site, F(5) is bonded to one Na(1), one Na(3), one Sm(2), and one Sm(3) atom to form distorted FNa2Sm2 trigonal pyramids that share  a cornercorner with one F(3)Na2Sm2 tetrahedra,  a cornercorner with one F(7)Na2Sm2 tetrahedra,  a cornercorner with one F(9)Na2Sm2 tetrahedra,  a cornercorner with one F(11)NaSm3 tetrahedra, corners with two equivalent F(12)Na2Sm2 tetrahedra, corners with two equivalent F(6)Na2Sm2 tetrahedra, corners with two equivalent F(10)NaSm3 tetrahedra, corners with three equivalent F(4)Na2Sm2 tetrahedra, corners with four equivalent F(2)Na2Sm2 tetrahedra,  an edgeedge with one F(1)Na2Sm2 tetrahedra,  an edgeedge with one F(3)Na2Sm2 tetrahedra,  an edgeedge with one F(7)Na2Sm2 tetrahedra,  an edgeedge with one F(9)Na2Sm2 tetrahedra,  an edgeedge with one F(11)NaSm3 tetrahedra, and  an edgeedge with one F(8)NaSm3 tetrahedra. In the sixth F site, F(6) is bonded to one Na(2), one Na(3), one Sm(1), and one Sm(3) atom to form FNa2Sm2 tetrahedra that share  a cornercorner with one F(12)Na2Sm2 tetrahedra,  a cornercorner with one F(4)Na2Sm2 tetrahedra,  a cornercorner with one F(10)NaSm3 tetrahedra,  a cornercorner with one F(8)NaSm3 tetrahedra, corners with two equivalent F(9)Na2Sm2 tetrahedra, corners with two equivalent F(11)NaSm3 tetrahedra, corners with three equivalent F(3)Na2Sm2 tetrahedra, corners with four equivalent F(1)Na2Sm2 tetrahedra, corners with two equivalent F(5)Na2Sm2 trigonal pyramids,  an edgeedge with one F(12)Na2Sm2 tetrahedra,  an edgeedge with one F(2)Na2Sm2 tetrahedra,  an edgeedge with one F(4)Na2Sm2 tetrahedra,  an edgeedge with one F(7)Na2Sm2 tetrahedra,  an edgeedge with one F(10)NaSm3 tetrahedra, and  an edgeedge with one F(8)NaSm3 tetrahedra. In the seventh F site, F(7) is bonded to one Na(1), one Na(3), one Sm(1), and one Sm(2) atom to form FNa2Sm2 tetrahedra that share  a cornercorner with one F(2)Na2Sm2 tetrahedra,  a cornercorner with one F(3)Na2Sm2 tetrahedra,  a cornercorner with one F(11)NaSm3 tetrahedra, corners with two equivalent F(1)Na2Sm2 tetrahedra, corners with two equivalent F(4)Na2Sm2 tetrahedra, corners with two equivalent F(8)NaSm3 tetrahedra, corners with three equivalent F(12)Na2Sm2 tetrahedra, corners with four equivalent F(9)Na2Sm2 tetrahedra,  a cornercorner with one F(5)Na2Sm2 trigonal pyramid,  an edgeedge with one F(2)Na2Sm2 tetrahedra,  an edgeedge with one F(3)Na2Sm2 tetrahedra,  an edgeedge with one F(6)Na2Sm2 tetrahedra,  an edgeedge with one F(10)NaSm3 tetrahedra,  an edgeedge with one F(11)NaSm3 tetrahedra, and  an edgeedge with one F(5)Na2Sm2 trigonal pyramid. In the eighth F site, F(8) is bonded to one Na(2), one Sm(1), one Sm(2), and one Sm(3) atom to form FNaSm3 tetrahedra that share  a cornercorner with one F(1)Na2Sm2 tetrahedra,  a cornercorner with one F(12)Na2Sm2 tetrahedra,  a cornercorner with one F(4)Na2Sm2 tetrahedra,  a cornercorner with one F(6)Na2Sm2 tetrahedra, corners with two equivalent F(2)Na2Sm2 tetrahedra, corners with two equivalent F(3)Na2Sm2 tetrahedra, corners with two equivalent F(7)Na2Sm2 tetrahedra, corners with three equivalent F(11)NaSm3 tetrahedra, corners with four equivalent F(10)NaSm3 tetrahedra,  an edgeedge with one F(1)Na2Sm2 tetrahedra,  an edgeedge with one F(12)Na2Sm2 tetrahedra,  an edgeedge with one F(4)Na2Sm2 tetrahedra,  an edgeedge with one F(6)Na2Sm2 tetrahedra,  an edgeedge with one F(9)Na2Sm2 tetrahedra, and  an edgeedge with one F(5)Na2Sm2 trigonal pyramid. In the ninth F site, F(9) is bonded to one Na(1), one Na(3), one Sm(1), and one Sm(2) atom to form FNa2Sm2 tetrahedra that share  a cornercorner with one F(12)Na2Sm2 tetrahedra,  a cornercorner with one F(2)Na2Sm2 tetrahedra,  a cornercorner with one F(3)Na2Sm2 tetrahedra, corners with two equivalent F(4)Na2Sm2 tetrahedra, corners with two equivalent F(6)Na2Sm2 tetrahedra, corners with two equivalent F(10)NaSm3 tetrahedra, corners with three equivalent F(11)NaSm3 tetrahedra, corners with four equivalent F(7)Na2Sm2 tetrahedra,  a cornercorner with one F(5)Na2Sm2 trigonal pyramid,  an edgeedge with one F(1)Na2Sm2 tetrahedra,  an edgeedge with one F(12)Na2Sm2 tetrahedra,  an edgeedge with one F(2)Na2Sm2 tetrahedra,  an edgeedge with one F(3)Na2Sm2 tetrahedra,  an edgeedge with one F(8)NaSm3 tetrahedra, and  an edgeedge with one F(5)Na2Sm2 trigonal pyramid. In the tenth F site, F(10) is bonded to one Na(2), one Sm(1), one Sm(2), and one Sm(3) atom to form FNaSm3 tetrahedra that share  a cornercorner with one F(1)Na2Sm2 tetrahedra,  a cornercorner with one F(4)Na2Sm2 tetrahedra,  a cornercorner with one F(6)Na2Sm2 tetrahedra,  a cornercorner with one F(11)NaSm3 tetrahedra, corners with two equivalent F(3)Na2Sm2 tetrahedra, corners with two equivalent F(9)Na2Sm2 tetrahedra, corners with three equivalent F(12)Na2Sm2 tetrahedra, corners with four equivalent F(8)NaSm3 tetrahedra, corners with two equivalent F(5)Na2Sm2 trigonal pyramids,  an edgeedge with one F(1)Na2Sm2 tetrahedra,  an edgeedge with one F(2)Na2Sm2 tetrahedra,  an edgeedge with one F(4)Na2Sm2 tetrahedra,  an edgeedge with one F(6)Na2Sm2 tetrahedra,  an edgeedge with one F(7)Na2Sm2 tetrahedra, and  an edgeedge with one F(11)NaSm3 tetrahedra. In the eleventh F site, F(11) is bonded to one Na(1), one Sm(1), one Sm(2), and one Sm(3) atom to form FNaSm3 tetrahedra that share  a cornercorner with one F(2)Na2Sm2 tetrahedra,  a cornercorner with one F(3)Na2Sm2 tetrahedra,  a cornercorner with one F(7)Na2Sm2 tetrahedra,  a cornercorner with one F(10)NaSm3 tetrahedra, corners with two equivalent F(1)Na2Sm2 tetrahedra, corners with two equivalent F(12)Na2Sm2 tetrahedra, corners with two equivalent F(6)Na2Sm2 tetrahedra, corners with three equivalent F(9)Na2Sm2 tetrahedra, corners with three equivalent F(8)NaSm3 tetrahedra,  a cornercorner with one F(5)Na2Sm2 trigonal pyramid,  an edgeedge with one F(2)Na2Sm2 tetrahedra,  an edgeedge with one F(3)Na2Sm2 tetrahedra,  an edgeedge with one F(4)Na2Sm2 tetrahedra,  an edgeedge with one F(7)Na2Sm2 tetrahedra,  an edgeedge with one F(10)NaSm3 tetrahedra, and  an edgeedge with one F(5)Na2Sm2 trigonal pyramid. In the twelfth F site, F(12) is bonded to one Na(2), one Na(3), one Sm(1), and one Sm(2) atom to form FNa2Sm2 tetrahedra that share  a cornercorner with one F(1)Na2Sm2 tetrahedra,  a cornercorner with one F(4)Na2Sm2 tetrahedra,  a cornercorner with one F(6)Na2Sm2 tetrahedra,  a cornercorner with one F(9)Na2Sm2 tetrahedra,  a cornercorner with one F(8)NaSm3 tetrahedra, corners with two equivalent F(2)Na2Sm2 tetrahedra, corners with two equivalent F(11)NaSm3 tetrahedra, corners with three equivalent F(7)Na2Sm2 tetrahedra, corners with three equivalent F(10)NaSm3 tetrahedra, corners with two equivalent F(5)Na2Sm2 trigonal pyramids,  an edgeedge with one F(1)Na2Sm2 tetrahedra,  an edgeedge with one F(3)Na2Sm2 tetrahedra,  an edgeedge with one F(4)Na2Sm2 tetrahedra,  an edgeedge with one F(6)Na2Sm2 tetrahedra,  an edgeedge with one F(9)Na2Sm2 tetrahedra, and  an edgeedge with one F(8)NaSm3 tetrahedra.
NaSmF4 crystallizes in the triclinic P1 space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a distorted octahedral geometry to one F(11), one F(2), one F(3), one F(5), one F(7), and one F(9) atom. The Na(1)-F(11) bond length is 2.31 Å. The Na(1)-F(2) bond length is 2.36 Å. The Na(1)-F(3) bond length is 2.34 Å. The Na(1)-F(5) bond length is 2.46 Å. The Na(1)-F(7) bond length is 2.31 Å. The Na(1)-F(9) bond length is 2.24 Å. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to one F(1), one F(10), one F(12), one F(4), one F(6), and one F(8) atom. The Na(2)-F(1) bond length is 2.35 Å. The Na(2)-F(10) bond length is 2.34 Å. The Na(2)-F(12) bond length is 2.24 Å. The Na(2)-F(4) bond length is 2.37 Å. The Na(2)-F(6) bond length is 2.31 Å. The Na(2)-F(8) bond length is 2.25 Å. In the third Na site, Na(3) is bonded in a 9-coordinate geometry to one F(1), one F(12), one F(2), one F(3), one F(4), one F(5), one F(6), one F(7), and one F(9) atom. The Na(3)-F(1) bond length is 2.59 Å. The Na(3)-F(12) bond length is 2.35 Å. The Na(3)-F(2) bond length is 2.53 Å. The Na(3)-F(3) bond length is 2.61 Å. The Na(3)-F(4) bond length is 2.56 Å. The Na(3)-F(5) bond length is 2.61 Å. The Na(3)-F(6) bond length is 2.52 Å. The Na(3)-F(7) bond length is 2.32 Å. The Na(3)-F(9) bond length is 2.34 Å. There are three inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 9-coordinate geometry to one F(1), one F(10), one F(11), one F(12), one F(3), one F(6), one F(7), one F(8), and one F(9) atom. The Sm(1)-F(1) bond length is 2.34 Å. The Sm(1)-F(10) bond length is 2.40 Å. The Sm(1)-F(11) bond length is 2.41 Å. The Sm(1)-F(12) bond length is 2.36 Å. The Sm(1)-F(3) bond length is 2.34 Å. The Sm(1)-F(6) bond length is 2.33 Å. The Sm(1)-F(7) bond length is 2.37 Å. The Sm(1)-F(8) bond length is 2.41 Å. The Sm(1)-F(9) bond length is 2.37 Å. In the second Sm site, Sm(2) is bonded in a 9-coordinate geometry to one F(10), one F(11), one F(12), one F(2), one F(4), one F(5), one F(7), one F(8), and one F(9) atom. The Sm(2)-F(10) bond length is 2.41 Å. The Sm(2)-F(11) bond length is 2.43 Å. The Sm(2)-F(12) bond length is 2.35 Å. The Sm(2)-F(2) bond length is 2.35 Å. The Sm(2)-F(4) bond length is 2.34 Å. The Sm(2)-F(5) bond length is 2.34 Å. The Sm(2)-F(7) bond length is 2.37 Å. The Sm(2)-F(8) bond length is 2.39 Å. The Sm(2)-F(9) bond length is 2.36 Å. In the third Sm site, Sm(3) is bonded in a 9-coordinate geometry to one F(1), one F(10), one F(11), one F(2), one F(3), one F(4), one F(5), one F(6), and one F(8) atom. The Sm(3)-F(1) bond length is 2.37 Å. The Sm(3)-F(10) bond length is 2.36 Å. The Sm(3)-F(11) bond length is 2.37 Å. The Sm(3)-F(2) bond length is 2.37 Å. The Sm(3)-F(3) bond length is 2.36 Å. The Sm(3)-F(4) bond length is 2.37 Å. The Sm(3)-F(5) bond length is 2.36 Å. The Sm(3)-F(6) bond length is 2.36 Å. The Sm(3)-F(8) bond length is 2.38 Å. There are twelve inequivalent F sites. In the first F site, F(1) is bonded to one Na(2), one Na(3), one Sm(1), and one Sm(3) atom to form distorted FNa2Sm2 tetrahedra that share  a cornercorner with one F(12)Na2Sm2 tetrahedra,  a cornercorner with one F(3)Na2Sm2 tetrahedra,  a cornercorner with one F(10)NaSm3 tetrahedra,  a cornercorner with one F(8)NaSm3 tetrahedra, corners with two equivalent F(2)Na2Sm2 tetrahedra, corners with two equivalent F(7)Na2Sm2 tetrahedra, corners with two equivalent F(11)NaSm3 tetrahedra, corners with three equivalent F(4)Na2Sm2 tetrahedra, corners with four equivalent F(6)Na2Sm2 tetrahedra,  an edgeedge with one F(12)Na2Sm2 tetrahedra,  an edgeedge with one F(3)Na2Sm2 tetrahedra,  an edgeedge with one F(9)Na2Sm2 tetrahedra,  an edgeedge with one F(10)NaSm3 tetrahedra,  an edgeedge with one F(8)NaSm3 tetrahedra, and  an edgeedge with one F(5)Na2Sm2 trigonal pyramid. In the second F site, F(2) is bonded to one Na(1), one Na(3), one Sm(2), and one Sm(3) atom to form FNa2Sm2 tetrahedra that share  a cornercorner with one F(4)Na2Sm2 tetrahedra,  a cornercorner with one F(7)Na2Sm2 tetrahedra,  a cornercorner with one F(9)Na2Sm2 tetrahedra,  a cornercorner with one F(11)NaSm3 tetrahedra, corners with two equivalent F(1)Na2Sm2 tetrahedra, corners with two equivalent F(12)Na2Sm2 tetrahedra, corners with two equivalent F(8)NaSm3 tetrahedra, corners with three equivalent F(3)Na2Sm2 tetrahedra, corners with four equivalent F(5)Na2Sm2 trigonal pyramids,  an edgeedge with one F(4)Na2Sm2 tetrahedra,  an edgeedge with one F(6)Na2Sm2 tetrahedra,  an edgeedge with one F(7)Na2Sm2 tetrahedra,  an edgeedge with one F(9)Na2Sm2 tetrahedra,  an edgeedge with one F(10)NaSm3 tetrahedra, and  an edgeedge with one F(11)NaSm3 tetrahedra. In the third F site, F(3) is bonded to one Na(1), one Na(3), one Sm(1), and one Sm(3) atom to form distorted FNa2Sm2 tetrahedra that share  a cornercorner with one F(1)Na2Sm2 tetrahedra,  a cornercorner with one F(7)Na2Sm2 tetrahedra,  a cornercorner with one F(9)Na2Sm2 tetrahedra,  a cornercorner with one F(11)NaSm3 tetrahedra, corners with two equivalent F(4)Na2Sm2 tetrahedra, corners with two equivalent F(10)NaSm3 tetrahedra, corners with two equivalent F(8)NaSm3 tetrahedra, corners with three equivalent F(2)Na2Sm2 tetrahedra, corners with three equivalent F(6)Na2Sm2 tetrahedra,  a cornercorner with one F(5)Na2Sm2 trigonal pyramid,  an edgeedge with one F(1)Na2Sm2 tetrahedra,  an edgeedge with one F(12)Na2Sm2 tetrahedra,  an edgeedge with one F(7)Na2Sm2 tetrahedra,  an edgeedge with one F(9)Na2Sm2 tetrahedra,  an edgeedge with one F(11)NaSm3 tetrahedra, and  an edgeedge with one F(5)Na2Sm2 trigonal pyramid. In the fourth F site, F(4) is bonded to one Na(2), one Na(3), one Sm(2), and one Sm(3) atom to form FNa2Sm2 tetrahedra that share  a cornercorner with one F(12)Na2Sm2 tetrahedra,  a cornercorner with one F(2)Na2Sm2 tetrahedra,  a cornercorner with one F(6)Na2Sm2 tetrahedra,  a cornercorner with one F(10)NaSm3 tetrahedra,  a cornercorner with one F(8)NaSm3 tetrahedra, corners with two equivalent F(3)Na2Sm2 tetrahedra, corners with two equivalent F(7)Na2Sm2 tetrahedra, corners with two equivalent F(9)Na2Sm2 tetrahedra, corners with three equivalent F(1)Na2Sm2 tetrahedra, corners with three equivalent F(5)Na2Sm2 trigonal pyramids,  an edgeedge with one F(12)Na2Sm2 tetrahedra,  an edgeedge with one F(2)Na2Sm2 tetrahedra,  an edgeedge with one F(6)Na2Sm2 tetrahedra,  an edgeedge with one F(10)NaSm3 tetrahedra,  an edgeedge with one F(11)NaSm3 tetrahedra, and  an edgeedge with one F(8)NaSm3 tetrahedra. In the fifth F site, F(5) is bonded to one Na(1), one Na(3), one Sm(2), and one Sm(3) atom to form distorted FNa2Sm2 trigonal pyramids that share  a cornercorner with one F(3)Na2Sm2 tetrahedra,  a cornercorner with one F(7)Na2Sm2 tetrahedra,  a cornercorner with one F(9)Na2Sm2 tetrahedra,  a cornercorner with one F(11)NaSm3 tetrahedra, corners with two equivalent F(12)Na2Sm2 tetrahedra, corners with two equivalent F(6)Na2Sm2 tetrahedra, corners with two equivalent F(10)NaSm3 tetrahedra, corners with three equivalent F(4)Na2Sm2 tetrahedra, corners with four equivalent F(2)Na2Sm2 tetrahedra,  an edgeedge with one F(1)Na2Sm2 tetrahedra,  an edgeedge with one F(3)Na2Sm2 tetrahedra,  an edgeedge with one F(7)Na2Sm2 tetrahedra,  an edgeedge with one F(9)Na2Sm2 tetrahedra,  an edgeedge with one F(11)NaSm3 tetrahedra, and  an edgeedge with one F(8)NaSm3 tetrahedra. In the sixth F site, F(6) is bonded to one Na(2), one Na(3), one Sm(1), and one Sm(3) atom to form FNa2Sm2 tetrahedra that share  a cornercorner with one F(12)Na2Sm2 tetrahedra,  a cornercorner with one F(4)Na2Sm2 tetrahedra,  a cornercorner with one F(10)NaSm3 tetrahedra,  a cornercorner with one F(8)NaSm3 tetrahedra, corners with two equivalent F(9)Na2Sm2 tetrahedra, corners with two equivalent F(11)NaSm3 tetrahedra, corners with three equivalent F(3)Na2Sm2 tetrahedra, corners with four equivalent F(1)Na2Sm2 tetrahedra, corners with two equivalent F(5)Na2Sm2 trigonal pyramids,  an edgeedge with one F(12)Na2Sm2 tetrahedra,  an edgeedge with one F(2)Na2Sm2 tetrahedra,  an edgeedge with one F(4)Na2Sm2 tetrahedra,  an edgeedge with one F(7)Na2Sm2 tetrahedra,  an edgeedge with one F(10)NaSm3 tetrahedra, and  an edgeedge with one F(8)NaSm3 tetrahedra. In the seventh F site, F(7) is bonded to one Na(1), one Na(3), one Sm(1), and one Sm(2) atom to form FNa2Sm2 tetrahedra that share  a cornercorner with one F(2)Na2Sm2 tetrahedra,  a cornercorner with one F(3)Na2Sm2 tetrahedra,  a cornercorner with one F(11)NaSm3 tetrahedra, corners with two equivalent F(1)Na2Sm2 tetrahedra, corners with two equivalent F(4)Na2Sm2 tetrahedra, corners with two equivalent F(8)NaSm3 tetrahedra, corners with three equivalent F(12)Na2Sm2 tetrahedra, corners with four equivalent F(9)Na2Sm2 tetrahedra,  a cornercorner with one F(5)Na2Sm2 trigonal pyramid,  an edgeedge with one F(2)Na2Sm2 tetrahedra,  an edgeedge with one F(3)Na2Sm2 tetrahedra,  an edgeedge with one F(6)Na2Sm2 tetrahedra,  an edgeedge with one F(10)NaSm3 tetrahedra,  an edgeedge with one F(11)NaSm3 tetrahedra, and  an edgeedge with one F(5)Na2Sm2 trigonal pyramid. In the eighth F site, F(8) is bonded to one Na(2), one Sm(1), one Sm(2), and one Sm(3) atom to form FNaSm3 tetrahedra that share  a cornercorner with one F(1)Na2Sm2 tetrahedra,  a cornercorner with one F(12)Na2Sm2 tetrahedra,  a cornercorner with one F(4)Na2Sm2 tetrahedra,  a cornercorner with one F(6)Na2Sm2 tetrahedra, corners with two equivalent F(2)Na2Sm2 tetrahedra, corners with two equivalent F(3)Na2Sm2 tetrahedra, corners with two equivalent F(7)Na2Sm2 tetrahedra, corners with three equivalent F(11)NaSm3 tetrahedra, corners with four equivalent F(10)NaSm3 tetrahedra,  an edgeedge with one F(1)Na2Sm2 tetrahedra,  an edgeedge with one F(12)Na2Sm2 tetrahedra,  an edgeedge with one F(4)Na2Sm2 tetrahedra,  an edgeedge with one F(6)Na2Sm2 tetrahedra,  an edgeedge with one F(9)Na2Sm2 tetrahedra, and  an edgeedge with one F(5)Na2Sm2 trigonal pyramid. In the ninth F site, F(9) is bonded to one Na(1), one Na(3), one Sm(1), and one Sm(2) atom to form FNa2Sm2 tetrahedra that share  a cornercorner with one F(12)Na2Sm2 tetrahedra,  a cornercorner with one F(2)Na2Sm2 tetrahedra,  a cornercorner with one F(3)Na2Sm2 tetrahedra, corners with two equivalent F(4)Na2Sm2 tetrahedra, corners with two equivalent F(6)Na2Sm2 tetrahedra, corners with two equivalent F(10)NaSm3 tetrahedra, corners with three equivalent F(11)NaSm3 tetrahedra, corners with four equivalent F(7)Na2Sm2 tetrahedra,  a cornercorner with one F(5)Na2Sm2 trigonal pyramid,  an edgeedge with one F(1)Na2Sm2 tetrahedra,  an edgeedge with one F(12)Na2Sm2 tetrahedra,  an edgeedge with one F(2)Na2Sm2 tetrahedra,  an edgeedge with one F(3)Na2Sm2 tetrahedra,  an edgeedge with one F(8)NaSm3 tetrahedra, and  an edgeedge with one F(5)Na2Sm2 trigonal pyramid. In the tenth F site, F(10) is bonded to one Na(2), one Sm(1), one Sm(2), and one Sm(3) atom to form FNaSm3 tetrahedra that share  a cornercorner with one F(1)Na2Sm2 tetrahedra,  a cornercorner with one F(4)Na2Sm2 tetrahedra,  a cornercorner with one F(6)Na2Sm2 tetrahedra,  a cornercorner with one F(11)NaSm3 tetrahedra, corners with two equivalent F(3)Na2Sm2 tetrahedra, corners with two equivalent F(9)Na2Sm2 tetrahedra, corners with three equivalent F(12)Na2Sm2 tetrahedra, corners with four equivalent F(8)NaSm3 tetrahedra, corners with two equivalent F(5)Na2Sm2 trigonal pyramids,  an edgeedge with one F(1)Na2Sm2 tetrahedra,  an edgeedge with one F(2)Na2Sm2 tetrahedra,  an edgeedge with one F(4)Na2Sm2 tetrahedra,  an edgeedge with one F(6)Na2Sm2 tetrahedra,  an edgeedge with one F(7)Na2Sm2 tetrahedra, and  an edgeedge with one F(11)NaSm3 tetrahedra. In the eleventh F site, F(11) is bonded to one Na(1), one Sm(1), one Sm(2), and one Sm(3) atom to form FNaSm3 tetrahedra that share  a cornercorner with one F(2)Na2Sm2 tetrahedra,  a cornercorner with one F(3)Na2Sm2 tetrahedra,  a cornercorner with one F(7)Na2Sm2 tetrahedra,  a cornercorner with one F(10)NaSm3 tetrahedra, corners with two equivalent F(1)Na2Sm2 tetrahedra, corners with two equivalent F(12)Na2Sm2 tetrahedra, corners with two equivalent F(6)Na2Sm2 tetrahedra, corners with three equivalent F(9)Na2Sm2 tetrahedra, corners with three equivalent F(8)NaSm3 tetrahedra,  a cornercorner with one F(5)Na2Sm2 trigonal pyramid,  an edgeedge with one F(2)Na2Sm2 tetrahedra,  an edgeedge with one F(3)Na2Sm2 tetrahedra,  an edgeedge with one F(4)Na2Sm2 tetrahedra,  an edgeedge with one F(7)Na2Sm2 tetrahedra,  an edgeedge with one F(10)NaSm3 tetrahedra, and  an edgeedge with one F(5)Na2Sm2 trigonal pyramid. In the twelfth F site, F(12) is bonded to one Na(2), one Na(3), one Sm(1), and one Sm(2) atom to form FNa2Sm2 tetrahedra that share  a cornercorner with one F(1)Na2Sm2 tetrahedra,  a cornercorner with one F(4)Na2Sm2 tetrahedra,  a cornercorner with one F(6)Na2Sm2 tetrahedra,  a cornercorner with one F(9)Na2Sm2 tetrahedra,  a cornercorner with one F(8)NaSm3 tetrahedra, corners with two equivalent F(2)Na2Sm2 tetrahedra, corners with two equivalent F(11)NaSm3 tetrahedra, corners with three equivalent F(7)Na2Sm2 tetrahedra, corners with three equivalent F(10)NaSm3 tetrahedra, corners with two equivalent F(5)Na2Sm2 trigonal pyramids,  an edgeedge with one F(1)Na2Sm2 tetrahedra,  an edgeedge with one F(3)Na2Sm2 tetrahedra,  an edgeedge with one F(4)Na2Sm2 tetrahedra,  an edgeedge with one F(6)Na2Sm2 tetrahedra,  an edgeedge with one F(9)Na2Sm2 tetrahedra, and  an edgeedge with one F(8)NaSm3 tetrahedra.