Nd4Ni2Ga17 crystallizes in the orthorhombic Imm2 space group. There are four inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 16-coordinate geometry to two equivalent Ga(10), two equivalent Ga(13), two equivalent Ga(14), two equivalent Ga(9), four equivalent Ga(12), and four equivalent Ga(6) atoms. In the second Nd site, Nd(2) is bonded in a 16-coordinate geometry to two equivalent Ga(13), two equivalent Ga(14), two equivalent Ga(7), two equivalent Ga(8), four equivalent Ga(11), and four equivalent Ga(5) atoms. In the third Nd site, Nd(3) is bonded in a 16-coordinate geometry to two equivalent Ni(2), two equivalent Ga(15), two equivalent Ga(7), two equivalent Ga(8), four equivalent Ga(2), and four equivalent Ga(4) atoms. In the fourth Nd site, Nd(4) is bonded in a 16-coordinate geometry to two equivalent Ga(10), two equivalent Ga(16), two equivalent Ga(17), two equivalent Ga(9), four equivalent Ga(1), and four equivalent Ga(3) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 6-coordinate geometry to two equivalent Ni(2), two equivalent Ga(15), two equivalent Ga(16), and two equivalent Ga(17) atoms. In the second Ni site, Ni(2) is bonded in a 11-coordinate geometry to two equivalent Nd(3), two equivalent Ni(1), one Ga(16), two equivalent Ga(4), and four equivalent Ga(15) atoms. There are seventeen inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to four equivalent Nd(4), one Ga(3), two equivalent Ga(10), and two equivalent Ga(9) atoms. In the second Ga site, Ga(2) is bonded in a 9-coordinate geometry to four equivalent Nd(3), one Ga(4), two equivalent Ga(7), and two equivalent Ga(8) atoms. In the third Ga site, Ga(3) is bonded in a 9-coordinate geometry to four equivalent Nd(4), one Ga(1), two equivalent Ga(16), and two equivalent Ga(17) atoms. In the fourth Ga site, Ga(4) is bonded in a 9-coordinate geometry to four equivalent Nd(3), two equivalent Ni(2), one Ga(2), and two equivalent Ga(15) atoms. In the fifth Ga site, Ga(5) is bonded in a 9-coordinate geometry to four equivalent Nd(2), one Ga(11), two equivalent Ga(7), and two equivalent Ga(8) atoms. In the sixth Ga site, Ga(6) is bonded in a 9-coordinate geometry to four equivalent Nd(1), one Ga(12), two equivalent Ga(10), and two equivalent Ga(9) atoms. In the seventh Ga site, Ga(7) is bonded to two equivalent Nd(2), two equivalent Nd(3), two equivalent Ga(2), two equivalent Ga(5), and four equivalent Ga(8) atoms to form a mixture of distorted corner, face, and edge-sharing GaNd4Ga8 cuboctahedra. In the eighth Ga site, Ga(8) is bonded to two equivalent Nd(2), two equivalent Nd(3), two equivalent Ga(2), two equivalent Ga(5), and four equivalent Ga(7) atoms to form a mixture of distorted corner, face, and edge-sharing GaNd4Ga8 cuboctahedra. In the ninth Ga site, Ga(9) is bonded to two equivalent Nd(1), two equivalent Nd(4), two equivalent Ga(1), two equivalent Ga(6), and four equivalent Ga(10) atoms to form a mixture of distorted corner, face, and edge-sharing GaNd4Ga8 cuboctahedra. In the tenth Ga site, Ga(10) is bonded to two equivalent Nd(1), two equivalent Nd(4), two equivalent Ga(1), two equivalent Ga(6), and four equivalent Ga(9) atoms to form a mixture of distorted corner, face, and edge-sharing GaNd4Ga8 cuboctahedra. In the eleventh Ga site, Ga(11) is bonded in a 9-coordinate geometry to four equivalent Nd(2), one Ga(5), two equivalent Ga(13), and two equivalent Ga(14) atoms. In the twelfth Ga site, Ga(12) is bonded in a 9-coordinate geometry to four equivalent Nd(1), one Ga(6), two equivalent Ga(13), and two equivalent Ga(14) atoms. In the thirteenth Ga site, Ga(13) is bonded to two equivalent Nd(1), two equivalent Nd(2), two equivalent Ga(11), two equivalent Ga(12), and four equivalent Ga(14) atoms to form a mixture of distorted corner, face, and edge-sharing GaNd4Ga8 cuboctahedra. In the fourteenth Ga site, Ga(14) is bonded to two equivalent Nd(1), two equivalent Nd(2), two equivalent Ga(11), two equivalent Ga(12), and four equivalent Ga(13) atoms to form a mixture of distorted corner, face, and edge-sharing GaNd4Ga8 cuboctahedra. In the fifteenth Ga site, Ga(15) is bonded in a 11-coordinate geometry to two equivalent Nd(3), two equivalent Ni(1), four equivalent Ni(2), one Ga(17), and two equivalent Ga(4) atoms. In the sixteenth Ga site, Ga(16) is bonded in a 3-coordinate geometry to two equivalent Nd(4), one Ni(2), two equivalent Ni(1), and two equivalent Ga(3) atoms. In the seventeenth Ga site, Ga(17) is bonded in a 7-coordinate geometry to two equivalent Nd(4), two equivalent Ni(1), one Ga(15), and two equivalent Ga(3) atoms.
Nd4Ni2Ga17 crystallizes in the orthorhombic Imm2 space group. There are four inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 16-coordinate geometry to two equivalent Ga(10), two equivalent Ga(13), two equivalent Ga(14), two equivalent Ga(9), four equivalent Ga(12), and four equivalent Ga(6) atoms. Both Nd(1)-Ga(10) bond lengths are 3.43 Å. Both Nd(1)-Ga(13) bond lengths are 3.45 Å. Both Nd(1)-Ga(14) bond lengths are 3.41 Å. Both Nd(1)-Ga(9) bond lengths are 3.39 Å. All Nd(1)-Ga(12) bond lengths are 3.31 Å. All Nd(1)-Ga(6) bond lengths are 3.28 Å. In the second Nd site, Nd(2) is bonded in a 16-coordinate geometry to two equivalent Ga(13), two equivalent Ga(14), two equivalent Ga(7), two equivalent Ga(8), four equivalent Ga(11), and four equivalent Ga(5) atoms. Both Nd(2)-Ga(13) bond lengths are 3.42 Å. Both Nd(2)-Ga(14) bond lengths are 3.45 Å. Both Nd(2)-Ga(7) bond lengths are 3.41 Å. Both Nd(2)-Ga(8) bond lengths are 3.44 Å. All Nd(2)-Ga(11) bond lengths are 3.31 Å. All Nd(2)-Ga(5) bond lengths are 3.28 Å. In the third Nd site, Nd(3) is bonded in a 16-coordinate geometry to two equivalent Ni(2), two equivalent Ga(15), two equivalent Ga(7), two equivalent Ga(8), four equivalent Ga(2), and four equivalent Ga(4) atoms. Both Nd(3)-Ni(2) bond lengths are 3.13 Å. Both Nd(3)-Ga(15) bond lengths are 3.27 Å. Both Nd(3)-Ga(7) bond lengths are 3.64 Å. Both Nd(3)-Ga(8) bond lengths are 3.61 Å. All Nd(3)-Ga(2) bond lengths are 3.37 Å. All Nd(3)-Ga(4) bond lengths are 3.25 Å. In the fourth Nd site, Nd(4) is bonded in a 16-coordinate geometry to two equivalent Ga(10), two equivalent Ga(16), two equivalent Ga(17), two equivalent Ga(9), four equivalent Ga(1), and four equivalent Ga(3) atoms. Both Nd(4)-Ga(10) bond lengths are 3.59 Å. Both Nd(4)-Ga(16) bond lengths are 3.48 Å. Both Nd(4)-Ga(17) bond lengths are 3.26 Å. Both Nd(4)-Ga(9) bond lengths are 3.63 Å. All Nd(4)-Ga(1) bond lengths are 3.39 Å. All Nd(4)-Ga(3) bond lengths are 3.21 Å. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 6-coordinate geometry to two equivalent Ni(2), two equivalent Ga(15), two equivalent Ga(16), and two equivalent Ga(17) atoms. Both Ni(1)-Ni(2) bond lengths are 2.66 Å. Both Ni(1)-Ga(15) bond lengths are 2.52 Å. Both Ni(1)-Ga(16) bond lengths are 2.39 Å. Both Ni(1)-Ga(17) bond lengths are 2.48 Å. In the second Ni site, Ni(2) is bonded in a 11-coordinate geometry to two equivalent Nd(3), two equivalent Ni(1), one Ga(16), two equivalent Ga(4), and four equivalent Ga(15) atoms. The Ni(2)-Ga(16) bond length is 2.51 Å. Both Ni(2)-Ga(4) bond lengths are 2.43 Å. All Ni(2)-Ga(15) bond lengths are 3.07 Å. There are seventeen inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to four equivalent Nd(4), one Ga(3), two equivalent Ga(10), and two equivalent Ga(9) atoms. The Ga(1)-Ga(3) bond length is 2.44 Å. Both Ga(1)-Ga(10) bond lengths are 2.60 Å. Both Ga(1)-Ga(9) bond lengths are 2.59 Å. In the second Ga site, Ga(2) is bonded in a 9-coordinate geometry to four equivalent Nd(3), one Ga(4), two equivalent Ga(7), and two equivalent Ga(8) atoms. The Ga(2)-Ga(4) bond length is 2.53 Å. Both Ga(2)-Ga(7) bond lengths are 2.62 Å. Both Ga(2)-Ga(8) bond lengths are 2.63 Å. In the third Ga site, Ga(3) is bonded in a 9-coordinate geometry to four equivalent Nd(4), one Ga(1), two equivalent Ga(16), and two equivalent Ga(17) atoms. Both Ga(3)-Ga(16) bond lengths are 2.76 Å. Both Ga(3)-Ga(17) bond lengths are 2.63 Å. In the fourth Ga site, Ga(4) is bonded in a 9-coordinate geometry to four equivalent Nd(3), two equivalent Ni(2), one Ga(2), and two equivalent Ga(15) atoms. Both Ga(4)-Ga(15) bond lengths are 2.57 Å. In the fifth Ga site, Ga(5) is bonded in a 9-coordinate geometry to four equivalent Nd(2), one Ga(11), two equivalent Ga(7), and two equivalent Ga(8) atoms. The Ga(5)-Ga(11) bond length is 2.45 Å. Both Ga(5)-Ga(7) bond lengths are 2.62 Å. Both Ga(5)-Ga(8) bond lengths are 2.60 Å. In the sixth Ga site, Ga(6) is bonded in a 9-coordinate geometry to four equivalent Nd(1), one Ga(12), two equivalent Ga(10), and two equivalent Ga(9) atoms. The Ga(6)-Ga(12) bond length is 2.44 Å. Both Ga(6)-Ga(10) bond lengths are 2.60 Å. Both Ga(6)-Ga(9) bond lengths are 2.61 Å. In the seventh Ga site, Ga(7) is bonded to two equivalent Nd(2), two equivalent Nd(3), two equivalent Ga(2), two equivalent Ga(5), and four equivalent Ga(8) atoms to form a mixture of distorted corner, face, and edge-sharing GaNd4Ga8 cuboctahedra. All Ga(7)-Ga(8) bond lengths are 3.06 Å. In the eighth Ga site, Ga(8) is bonded to two equivalent Nd(2), two equivalent Nd(3), two equivalent Ga(2), two equivalent Ga(5), and four equivalent Ga(7) atoms to form a mixture of distorted corner, face, and edge-sharing GaNd4Ga8 cuboctahedra. In the ninth Ga site, Ga(9) is bonded to two equivalent Nd(1), two equivalent Nd(4), two equivalent Ga(1), two equivalent Ga(6), and four equivalent Ga(10) atoms to form a mixture of distorted corner, face, and edge-sharing GaNd4Ga8 cuboctahedra. All Ga(9)-Ga(10) bond lengths are 3.06 Å. In the tenth Ga site, Ga(10) is bonded to two equivalent Nd(1), two equivalent Nd(4), two equivalent Ga(1), two equivalent Ga(6), and four equivalent Ga(9) atoms to form a mixture of distorted corner, face, and edge-sharing GaNd4Ga8 cuboctahedra. In the eleventh Ga site, Ga(11) is bonded in a 9-coordinate geometry to four equivalent Nd(2), one Ga(5), two equivalent Ga(13), and two equivalent Ga(14) atoms. Both Ga(11)-Ga(13) bond lengths are 2.59 Å. Both Ga(11)-Ga(14) bond lengths are 2.57 Å. In the twelfth Ga site, Ga(12) is bonded in a 9-coordinate geometry to four equivalent Nd(1), one Ga(6), two equivalent Ga(13), and two equivalent Ga(14) atoms. Both Ga(12)-Ga(13) bond lengths are 2.57 Å. Both Ga(12)-Ga(14) bond lengths are 2.58 Å. In the thirteenth Ga site, Ga(13) is bonded to two equivalent Nd(1), two equivalent Nd(2), two equivalent Ga(11), two equivalent Ga(12), and four equivalent Ga(14) atoms to form a mixture of distorted corner, face, and edge-sharing GaNd4Ga8 cuboctahedra. All Ga(13)-Ga(14) bond lengths are 3.06 Å. In the fourteenth Ga site, Ga(14) is bonded to two equivalent Nd(1), two equivalent Nd(2), two equivalent Ga(11), two equivalent Ga(12), and four equivalent Ga(13) atoms to form a mixture of distorted corner, face, and edge-sharing GaNd4Ga8 cuboctahedra. In the fifteenth Ga site, Ga(15) is bonded in a 11-coordinate geometry to two equivalent Nd(3), two equivalent Ni(1), four equivalent Ni(2), one Ga(17), and two equivalent Ga(4) atoms. The Ga(15)-Ga(17) bond length is 2.56 Å. In the sixteenth Ga site, Ga(16) is bonded in a 3-coordinate geometry to two equivalent Nd(4), one Ni(2), two equivalent Ni(1), and two equivalent Ga(3) atoms. In the seventeenth Ga site, Ga(17) is bonded in a 7-coordinate geometry to two equivalent Nd(4), two equivalent Ni(1), one Ga(15), and two equivalent Ga(3) atoms.