Tb6Pt3Ga19 crystallizes in the monoclinic Cm space group. There are six inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 16-coordinate geometry to two equivalent Pt(2), one Ga(1), one Ga(3), one Ga(5), one Ga(7), two equivalent Ga(11), two equivalent Ga(13), two equivalent Ga(15), two equivalent Ga(19), and two equivalent Ga(9) atoms. In the second Tb site, Tb(2) is bonded in a 12-coordinate geometry to two equivalent Pt(1), one Ga(2), one Ga(4), one Ga(6), one Ga(8), two equivalent Ga(10), two equivalent Ga(12), two equivalent Ga(14), and two equivalent Ga(16) atoms. In the third Tb site, Tb(3) is bonded in a 12-coordinate geometry to one Pt(1), one Pt(2), one Ga(5), two equivalent Ga(11), two equivalent Ga(15), two equivalent Ga(18), two equivalent Ga(4), and two equivalent Ga(7) atoms. In the fourth Tb site, Tb(4) is bonded in a 12-coordinate geometry to one Pt(3), one Ga(19), two equivalent Ga(12), two equivalent Ga(16), two equivalent Ga(17), two equivalent Ga(3), and two equivalent Ga(8) atoms. In the fifth Tb site, Tb(5) is bonded in a 12-coordinate geometry to one Pt(3), one Ga(19), one Ga(3), two equivalent Ga(13), two equivalent Ga(17), two equivalent Ga(2), two equivalent Ga(5), and two equivalent Ga(9) atoms. In the sixth Tb site, Tb(6) is bonded in a 12-coordinate geometry to one Pt(1), one Pt(2), one Ga(8), two equivalent Ga(1), two equivalent Ga(10), two equivalent Ga(14), two equivalent Ga(18), and two equivalent Ga(6) atoms. There are three inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 12-coordinate geometry to one Tb(3), one Tb(6), two equivalent Tb(2), one Ga(10), one Ga(16), two equivalent Ga(18), two equivalent Ga(4), and two equivalent Ga(6) atoms. In the second Pt site, Pt(2) is bonded in a 10-coordinate geometry to one Tb(3), one Tb(6), two equivalent Tb(1), one Ga(11), one Ga(13), two equivalent Ga(1), two equivalent Ga(18), and two equivalent Ga(7) atoms. In the third Pt site, Pt(3) is bonded in a 10-coordinate geometry to one Tb(4), one Tb(5), one Ga(12), one Ga(14), two equivalent Ga(17), two equivalent Ga(2), and two equivalent Ga(8) atoms. There are nineteen inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to one Tb(1), two equivalent Tb(6), two equivalent Pt(2), one Ga(10), one Ga(18), and two equivalent Ga(11) atoms. In the second Ga site, Ga(2) is bonded in a 2-coordinate geometry to one Tb(2), two equivalent Tb(5), two equivalent Pt(3), one Ga(17), one Ga(9), and two equivalent Ga(12) atoms. In the third Ga site, Ga(3) is bonded in a 10-coordinate geometry to one Tb(1), one Tb(5), two equivalent Tb(4), one Ga(12), one Ga(17), two equivalent Ga(19), and two equivalent Ga(9) atoms. In the fourth Ga site, Ga(4) is bonded in a 9-coordinate geometry to one Tb(2), two equivalent Tb(3), two equivalent Pt(1), one Ga(11), one Ga(18), and two equivalent Ga(10) atoms. In the fifth Ga site, Ga(5) is bonded in a 10-coordinate geometry to one Tb(1), one Tb(3), two equivalent Tb(5), one Ga(13), one Ga(17), two equivalent Ga(15), and two equivalent Ga(19) atoms. In the sixth Ga site, Ga(6) is bonded in a 9-coordinate geometry to one Tb(2), two equivalent Tb(6), two equivalent Pt(1), one Ga(14), one Ga(18), and two equivalent Ga(16) atoms. In the seventh Ga site, Ga(7) is bonded in a 2-coordinate geometry to one Tb(1), two equivalent Tb(3), two equivalent Pt(2), one Ga(15), one Ga(18), and two equivalent Ga(13) atoms. In the eighth Ga site, Ga(8) is bonded in a 10-coordinate geometry to one Tb(2), one Tb(6), two equivalent Tb(4), two equivalent Pt(3), one Ga(16), one Ga(17), and two equivalent Ga(14) atoms. In the ninth Ga site, Ga(9) is bonded in a 9-coordinate geometry to two equivalent Tb(1), two equivalent Tb(5), one Ga(13), one Ga(19), one Ga(2), and two equivalent Ga(3) atoms. In the tenth Ga site, Ga(10) is bonded in a 9-coordinate geometry to two equivalent Tb(2), two equivalent Tb(6), one Pt(1), one Ga(1), one Ga(14), and two equivalent Ga(4) atoms. In the eleventh Ga site, Ga(11) is bonded in a 9-coordinate geometry to two equivalent Tb(1), two equivalent Tb(3), one Pt(2), one Ga(15), one Ga(4), and two equivalent Ga(1) atoms. In the twelfth Ga site, Ga(12) is bonded in a 9-coordinate geometry to two equivalent Tb(2), two equivalent Tb(4), one Pt(3), one Ga(16), one Ga(3), and two equivalent Ga(2) atoms. In the thirteenth Ga site, Ga(13) is bonded in a 9-coordinate geometry to two equivalent Tb(1), two equivalent Tb(5), one Pt(2), one Ga(5), one Ga(9), and two equivalent Ga(7) atoms. In the fourteenth Ga site, Ga(14) is bonded in a 9-coordinate geometry to two equivalent Tb(2), two equivalent Tb(6), one Pt(3), one Ga(10), one Ga(6), and two equivalent Ga(8) atoms. In the fifteenth Ga site, Ga(15) is bonded in a 9-coordinate geometry to two equivalent Tb(1), two equivalent Tb(3), one Ga(11), one Ga(19), one Ga(7), and two equivalent Ga(5) atoms. In the sixteenth Ga site, Ga(16) is bonded in a 9-coordinate geometry to two equivalent Tb(2), two equivalent Tb(4), one Pt(1), one Ga(12), one Ga(8), and two equivalent Ga(6) atoms. In the seventeenth Ga site, Ga(17) is bonded in a 10-coordinate geometry to two equivalent Tb(4), two equivalent Tb(5), two equivalent Pt(3), one Ga(2), one Ga(3), one Ga(5), and one Ga(8) atom. In the eighteenth Ga site, Ga(18) is bonded to two equivalent Tb(3), two equivalent Tb(6), two equivalent Pt(1), two equivalent Pt(2), one Ga(1), one Ga(4), one Ga(6), and one Ga(7) atom to form face-sharing GaTb4Ga4Pt4 cuboctahedra. In the nineteenth Ga site, Ga(19) is bonded in a 8-coordinate geometry to one Tb(4), one Tb(5), two equivalent Tb(1), one Ga(15), one Ga(9), two equivalent Ga(3), and two equivalent Ga(5) atoms.
Tb6Pt3Ga19 crystallizes in the monoclinic Cm space group. There are six inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 16-coordinate geometry to two equivalent Pt(2), one Ga(1), one Ga(3), one Ga(5), one Ga(7), two equivalent Ga(11), two equivalent Ga(13), two equivalent Ga(15), two equivalent Ga(19), and two equivalent Ga(9) atoms. Both Tb(1)-Pt(2) bond lengths are 3.58 Å. The Tb(1)-Ga(1) bond length is 3.30 Å. The Tb(1)-Ga(3) bond length is 3.28 Å. The Tb(1)-Ga(5) bond length is 3.25 Å. The Tb(1)-Ga(7) bond length is 3.32 Å. Both Tb(1)-Ga(11) bond lengths are 3.25 Å. Both Tb(1)-Ga(13) bond lengths are 3.20 Å. Both Tb(1)-Ga(15) bond lengths are 3.18 Å. Both Tb(1)-Ga(19) bond lengths are 3.53 Å. Both Tb(1)-Ga(9) bond lengths are 3.19 Å. In the second Tb site, Tb(2) is bonded in a 12-coordinate geometry to two equivalent Pt(1), one Ga(2), one Ga(4), one Ga(6), one Ga(8), two equivalent Ga(10), two equivalent Ga(12), two equivalent Ga(14), and two equivalent Ga(16) atoms. Both Tb(2)-Pt(1) bond lengths are 3.53 Å. The Tb(2)-Ga(2) bond length is 3.22 Å. The Tb(2)-Ga(4) bond length is 3.20 Å. The Tb(2)-Ga(6) bond length is 3.27 Å. The Tb(2)-Ga(8) bond length is 3.22 Å. Both Tb(2)-Ga(10) bond lengths are 3.20 Å. Both Tb(2)-Ga(12) bond lengths are 3.14 Å. Both Tb(2)-Ga(14) bond lengths are 3.19 Å. Both Tb(2)-Ga(16) bond lengths are 3.22 Å. In the third Tb site, Tb(3) is bonded in a 12-coordinate geometry to one Pt(1), one Pt(2), one Ga(5), two equivalent Ga(11), two equivalent Ga(15), two equivalent Ga(18), two equivalent Ga(4), and two equivalent Ga(7) atoms. The Tb(3)-Pt(1) bond length is 3.11 Å. The Tb(3)-Pt(2) bond length is 3.16 Å. The Tb(3)-Ga(5) bond length is 3.58 Å. Both Tb(3)-Ga(11) bond lengths are 3.13 Å. Both Tb(3)-Ga(15) bond lengths are 3.11 Å. Both Tb(3)-Ga(18) bond lengths are 3.06 Å. Both Tb(3)-Ga(4) bond lengths are 3.13 Å. Both Tb(3)-Ga(7) bond lengths are 3.15 Å. In the fourth Tb site, Tb(4) is bonded in a 12-coordinate geometry to one Pt(3), one Ga(19), two equivalent Ga(12), two equivalent Ga(16), two equivalent Ga(17), two equivalent Ga(3), and two equivalent Ga(8) atoms. The Tb(4)-Pt(3) bond length is 3.10 Å. The Tb(4)-Ga(19) bond length is 3.13 Å. Both Tb(4)-Ga(12) bond lengths are 3.16 Å. Both Tb(4)-Ga(16) bond lengths are 3.12 Å. Both Tb(4)-Ga(17) bond lengths are 3.05 Å. Both Tb(4)-Ga(3) bond lengths are 3.17 Å. Both Tb(4)-Ga(8) bond lengths are 3.18 Å. In the fifth Tb site, Tb(5) is bonded in a 12-coordinate geometry to one Pt(3), one Ga(19), one Ga(3), two equivalent Ga(13), two equivalent Ga(17), two equivalent Ga(2), two equivalent Ga(5), and two equivalent Ga(9) atoms. The Tb(5)-Pt(3) bond length is 3.11 Å. The Tb(5)-Ga(19) bond length is 3.11 Å. The Tb(5)-Ga(3) bond length is 3.60 Å. Both Tb(5)-Ga(13) bond lengths are 3.15 Å. Both Tb(5)-Ga(17) bond lengths are 3.04 Å. Both Tb(5)-Ga(2) bond lengths are 3.22 Å. Both Tb(5)-Ga(5) bond lengths are 3.15 Å. Both Tb(5)-Ga(9) bond lengths are 3.11 Å. In the sixth Tb site, Tb(6) is bonded in a 12-coordinate geometry to one Pt(1), one Pt(2), one Ga(8), two equivalent Ga(1), two equivalent Ga(10), two equivalent Ga(14), two equivalent Ga(18), and two equivalent Ga(6) atoms. The Tb(6)-Pt(1) bond length is 3.14 Å. The Tb(6)-Pt(2) bond length is 3.14 Å. The Tb(6)-Ga(8) bond length is 3.58 Å. Both Tb(6)-Ga(1) bond lengths are 3.12 Å. Both Tb(6)-Ga(10) bond lengths are 3.13 Å. Both Tb(6)-Ga(14) bond lengths are 3.12 Å. Both Tb(6)-Ga(18) bond lengths are 3.06 Å. Both Tb(6)-Ga(6) bond lengths are 3.13 Å. There are three inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 12-coordinate geometry to one Tb(3), one Tb(6), two equivalent Tb(2), one Ga(10), one Ga(16), two equivalent Ga(18), two equivalent Ga(4), and two equivalent Ga(6) atoms. The Pt(1)-Ga(10) bond length is 2.59 Å. The Pt(1)-Ga(16) bond length is 2.56 Å. Both Pt(1)-Ga(18) bond lengths are 3.06 Å. Both Pt(1)-Ga(4) bond lengths are 2.66 Å. Both Pt(1)-Ga(6) bond lengths are 2.67 Å. In the second Pt site, Pt(2) is bonded in a 10-coordinate geometry to one Tb(3), one Tb(6), two equivalent Tb(1), one Ga(11), one Ga(13), two equivalent Ga(1), two equivalent Ga(18), and two equivalent Ga(7) atoms. The Pt(2)-Ga(11) bond length is 2.57 Å. The Pt(2)-Ga(13) bond length is 2.53 Å. Both Pt(2)-Ga(1) bond lengths are 2.66 Å. Both Pt(2)-Ga(18) bond lengths are 3.09 Å. Both Pt(2)-Ga(7) bond lengths are 2.65 Å. In the third Pt site, Pt(3) is bonded in a 10-coordinate geometry to one Tb(4), one Tb(5), one Ga(12), one Ga(14), two equivalent Ga(17), two equivalent Ga(2), and two equivalent Ga(8) atoms. The Pt(3)-Ga(12) bond length is 2.58 Å. The Pt(3)-Ga(14) bond length is 2.61 Å. Both Pt(3)-Ga(17) bond lengths are 2.95 Å. Both Pt(3)-Ga(2) bond lengths are 2.68 Å. Both Pt(3)-Ga(8) bond lengths are 2.70 Å. There are nineteen inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to one Tb(1), two equivalent Tb(6), two equivalent Pt(2), one Ga(10), one Ga(18), and two equivalent Ga(11) atoms. The Ga(1)-Ga(10) bond length is 2.68 Å. The Ga(1)-Ga(18) bond length is 2.76 Å. Both Ga(1)-Ga(11) bond lengths are 2.65 Å. In the second Ga site, Ga(2) is bonded in a 2-coordinate geometry to one Tb(2), two equivalent Tb(5), two equivalent Pt(3), one Ga(17), one Ga(9), and two equivalent Ga(12) atoms. The Ga(2)-Ga(17) bond length is 2.74 Å. The Ga(2)-Ga(9) bond length is 2.66 Å. Both Ga(2)-Ga(12) bond lengths are 2.65 Å. In the third Ga site, Ga(3) is bonded in a 10-coordinate geometry to one Tb(1), one Tb(5), two equivalent Tb(4), one Ga(12), one Ga(17), two equivalent Ga(19), and two equivalent Ga(9) atoms. The Ga(3)-Ga(12) bond length is 2.63 Å. The Ga(3)-Ga(17) bond length is 3.02 Å. Both Ga(3)-Ga(19) bond lengths are 2.75 Å. Both Ga(3)-Ga(9) bond lengths are 2.67 Å. In the fourth Ga site, Ga(4) is bonded in a 9-coordinate geometry to one Tb(2), two equivalent Tb(3), two equivalent Pt(1), one Ga(11), one Ga(18), and two equivalent Ga(10) atoms. The Ga(4)-Ga(11) bond length is 2.69 Å. The Ga(4)-Ga(18) bond length is 2.75 Å. Both Ga(4)-Ga(10) bond lengths are 2.65 Å. In the fifth Ga site, Ga(5) is bonded in a 10-coordinate geometry to one Tb(1), one Tb(3), two equivalent Tb(5), one Ga(13), one Ga(17), two equivalent Ga(15), and two equivalent Ga(19) atoms. The Ga(5)-Ga(13) bond length is 2.62 Å. The Ga(5)-Ga(17) bond length is 3.02 Å. Both Ga(5)-Ga(15) bond lengths are 2.65 Å. Both Ga(5)-Ga(19) bond lengths are 2.75 Å. In the sixth Ga site, Ga(6) is bonded in a 9-coordinate geometry to one Tb(2), two equivalent Tb(6), two equivalent Pt(1), one Ga(14), one Ga(18), and two equivalent Ga(16) atoms. The Ga(6)-Ga(14) bond length is 2.70 Å. The Ga(6)-Ga(18) bond length is 2.74 Å. Both Ga(6)-Ga(16) bond lengths are 2.66 Å. In the seventh Ga site, Ga(7) is bonded in a 2-coordinate geometry to one Tb(1), two equivalent Tb(3), two equivalent Pt(2), one Ga(15), one Ga(18), and two equivalent Ga(13) atoms. The Ga(7)-Ga(15) bond length is 2.70 Å. The Ga(7)-Ga(18) bond length is 2.73 Å. Both Ga(7)-Ga(13) bond lengths are 2.68 Å. In the eighth Ga site, Ga(8) is bonded in a 10-coordinate geometry to one Tb(2), one Tb(6), two equivalent Tb(4), two equivalent Pt(3), one Ga(16), one Ga(17), and two equivalent Ga(14) atoms. The Ga(8)-Ga(16) bond length is 2.66 Å. The Ga(8)-Ga(17) bond length is 2.73 Å. Both Ga(8)-Ga(14) bond lengths are 2.63 Å. In the ninth Ga site, Ga(9) is bonded in a 9-coordinate geometry to two equivalent Tb(1), two equivalent Tb(5), one Ga(13), one Ga(19), one Ga(2), and two equivalent Ga(3) atoms. The Ga(9)-Ga(13) bond length is 2.50 Å. The Ga(9)-Ga(19) bond length is 2.64 Å. In the tenth Ga site, Ga(10) is bonded in a 9-coordinate geometry to two equivalent Tb(2), two equivalent Tb(6), one Pt(1), one Ga(1), one Ga(14), and two equivalent Ga(4) atoms. The Ga(10)-Ga(14) bond length is 2.52 Å. In the eleventh Ga site, Ga(11) is bonded in a 9-coordinate geometry to two equivalent Tb(1), two equivalent Tb(3), one Pt(2), one Ga(15), one Ga(4), and two equivalent Ga(1) atoms. The Ga(11)-Ga(15) bond length is 2.53 Å. In the twelfth Ga site, Ga(12) is bonded in a 9-coordinate geometry to two equivalent Tb(2), two equivalent Tb(4), one Pt(3), one Ga(16), one Ga(3), and two equivalent Ga(2) atoms. The Ga(12)-Ga(16) bond length is 2.50 Å. In the thirteenth Ga site, Ga(13) is bonded in a 9-coordinate geometry to two equivalent Tb(1), two equivalent Tb(5), one Pt(2), one Ga(5), one Ga(9), and two equivalent Ga(7) atoms. In the fourteenth Ga site, Ga(14) is bonded in a 9-coordinate geometry to two equivalent Tb(2), two equivalent Tb(6), one Pt(3), one Ga(10), one Ga(6), and two equivalent Ga(8) atoms. In the fifteenth Ga site, Ga(15) is bonded in a 9-coordinate geometry to two equivalent Tb(1), two equivalent Tb(3), one Ga(11), one Ga(19), one Ga(7), and two equivalent Ga(5) atoms. The Ga(15)-Ga(19) bond length is 2.65 Å. In the sixteenth Ga site, Ga(16) is bonded in a 9-coordinate geometry to two equivalent Tb(2), two equivalent Tb(4), one Pt(1), one Ga(12), one Ga(8), and two equivalent Ga(6) atoms. In the seventeenth Ga site, Ga(17) is bonded in a 10-coordinate geometry to two equivalent Tb(4), two equivalent Tb(5), two equivalent Pt(3), one Ga(2), one Ga(3), one Ga(5), and one Ga(8) atom. In the eighteenth Ga site, Ga(18) is bonded to two equivalent Tb(3), two equivalent Tb(6), two equivalent Pt(1), two equivalent Pt(2), one Ga(1), one Ga(4), one Ga(6), and one Ga(7) atom to form face-sharing GaTb4Ga4Pt4 cuboctahedra. In the nineteenth Ga site, Ga(19) is bonded in a 8-coordinate geometry to one Tb(4), one Tb(5), two equivalent Tb(1), one Ga(15), one Ga(9), two equivalent Ga(3), and two equivalent Ga(5) atoms.