Nb2Sb crystallizes in the triclinic P1 space group. There are fourteen inequivalent Nb sites. In the first Nb site, Nb(1) is bonded in a 2-coordinate geometry to one Nb(4), one Sb(1), and one Sb(2) atom. In the second Nb site, Nb(2) is bonded in a 2-coordinate geometry to one Nb(3), one Sb(1), one Sb(3), and two equivalent Sb(2) atoms. In the third Nb site, Nb(3) is bonded in a 7-coordinate geometry to one Nb(2), one Nb(8), two equivalent Nb(3), one Sb(3), and two equivalent Sb(2) atoms. In the fourth Nb site, Nb(4) is bonded in a 8-coordinate geometry to one Nb(1), one Nb(12), two equivalent Nb(4), one Sb(2), one Sb(7), and two equivalent Sb(1) atoms. In the fifth Nb site, Nb(5) is bonded in a 7-coordinate geometry to one Nb(10), one Nb(8), two equivalent Nb(5), one Sb(4), and two equivalent Sb(3) atoms. In the sixth Nb site, Nb(6) is bonded in a 7-coordinate geometry to one Nb(10), one Nb(7), two equivalent Nb(6), one Sb(5), and two equivalent Sb(4) atoms. In the seventh Nb site, Nb(7) is bonded in a 7-coordinate geometry to one Nb(6), one Nb(9), two equivalent Nb(7), one Sb(6), and two equivalent Sb(5) atoms. In the eighth Nb site, Nb(8) is bonded in a 3-coordinate geometry to one Nb(3), one Nb(5), one Sb(4), and two equivalent Sb(3) atoms. In the ninth Nb site, Nb(9) is bonded in a 7-coordinate geometry to one Nb(13), one Nb(7), two equivalent Nb(9), one Sb(6), and two equivalent Sb(5) atoms. In the tenth Nb site, Nb(10) is bonded in a 3-coordinate geometry to one Nb(5), one Nb(6), one Sb(5), and two equivalent Sb(4) atoms. In the eleventh Nb site, Nb(11) is bonded in a 7-coordinate geometry to one Nb(13), one Nb(14), two equivalent Nb(11), one Sb(7), and two equivalent Sb(6) atoms. In the twelfth Nb site, Nb(12) is bonded in a 8-coordinate geometry to one Nb(14), one Nb(4), two equivalent Nb(12), two equivalent Sb(1), and two equivalent Sb(7) atoms. In the thirteenth Nb site, Nb(13) is bonded in a 3-coordinate geometry to one Nb(11), one Nb(9), one Sb(7), and two equivalent Sb(6) atoms. In the fourteenth Nb site, Nb(14) is bonded in a 3-coordinate geometry to one Nb(11), one Nb(12), one Sb(1), and two equivalent Sb(7) atoms. There are seven inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 10-coordinate geometry to one Nb(1), one Nb(14), one Nb(2), two equivalent Nb(12), two equivalent Nb(4), one Sb(2), and two equivalent Sb(1) atoms. In the second Sb site, Sb(2) is bonded in a 8-coordinate geometry to one Nb(1), one Nb(4), two equivalent Nb(2), two equivalent Nb(3), one Sb(1), and two equivalent Sb(2) atoms. In the third Sb site, Sb(3) is bonded in a 6-coordinate geometry to one Nb(2), one Nb(3), two equivalent Nb(5), and two equivalent Nb(8) atoms. In the fourth Sb site, Sb(4) is bonded in a 6-coordinate geometry to one Nb(5), one Nb(8), two equivalent Nb(10), and two equivalent Nb(6) atoms. In the fifth Sb site, Sb(5) is bonded in a 6-coordinate geometry to one Nb(10), one Nb(6), two equivalent Nb(7), and two equivalent Nb(9) atoms. In the sixth Sb site, Sb(6) is bonded in a 6-coordinate geometry to one Nb(7), one Nb(9), two equivalent Nb(11), and two equivalent Nb(13) atoms. In the seventh Sb site, Sb(7) is bonded in a 7-coordinate geometry to one Nb(11), one Nb(13), one Nb(4), two equivalent Nb(12), and two equivalent Nb(14) atoms.
Nb2Sb crystallizes in the triclinic P1 space group. There are fourteen inequivalent Nb sites. In the first Nb site, Nb(1) is bonded in a 2-coordinate geometry to one Nb(4), one Sb(1), and one Sb(2) atom. The Nb(1)-Nb(4) bond length is 2.73 Å. The Nb(1)-Sb(1) bond length is 2.79 Å. The Nb(1)-Sb(2) bond length is 2.85 Å. In the second Nb site, Nb(2) is bonded in a 2-coordinate geometry to one Nb(3), one Sb(1), one Sb(3), and two equivalent Sb(2) atoms. The Nb(2)-Nb(3) bond length is 2.72 Å. The Nb(2)-Sb(1) bond length is 3.51 Å. The Nb(2)-Sb(3) bond length is 2.93 Å. There is one shorter (2.94 Å) and one longer (3.11 Å) Nb(2)-Sb(2) bond length. In the third Nb site, Nb(3) is bonded in a 7-coordinate geometry to one Nb(2), one Nb(8), two equivalent Nb(3), one Sb(3), and two equivalent Sb(2) atoms. The Nb(3)-Nb(8) bond length is 2.82 Å. Both Nb(3)-Nb(3) bond lengths are 2.94 Å. The Nb(3)-Sb(3) bond length is 2.89 Å. There is one shorter (2.98 Å) and one longer (3.16 Å) Nb(3)-Sb(2) bond length. In the fourth Nb site, Nb(4) is bonded in a 8-coordinate geometry to one Nb(1), one Nb(12), two equivalent Nb(4), one Sb(2), one Sb(7), and two equivalent Sb(1) atoms. The Nb(4)-Nb(12) bond length is 2.90 Å. Both Nb(4)-Nb(4) bond lengths are 2.94 Å. The Nb(4)-Sb(2) bond length is 3.03 Å. The Nb(4)-Sb(7) bond length is 2.92 Å. Both Nb(4)-Sb(1) bond lengths are 2.95 Å. In the fifth Nb site, Nb(5) is bonded in a 7-coordinate geometry to one Nb(10), one Nb(8), two equivalent Nb(5), one Sb(4), and two equivalent Sb(3) atoms. The Nb(5)-Nb(10) bond length is 2.80 Å. The Nb(5)-Nb(8) bond length is 2.76 Å. Both Nb(5)-Nb(5) bond lengths are 2.94 Å. The Nb(5)-Sb(4) bond length is 2.93 Å. There is one shorter (2.96 Å) and one longer (3.00 Å) Nb(5)-Sb(3) bond length. In the sixth Nb site, Nb(6) is bonded in a 7-coordinate geometry to one Nb(10), one Nb(7), two equivalent Nb(6), one Sb(5), and two equivalent Sb(4) atoms. The Nb(6)-Nb(10) bond length is 2.79 Å. The Nb(6)-Nb(7) bond length is 2.78 Å. Both Nb(6)-Nb(6) bond lengths are 2.94 Å. The Nb(6)-Sb(5) bond length is 2.95 Å. There is one shorter (2.94 Å) and one longer (2.98 Å) Nb(6)-Sb(4) bond length. In the seventh Nb site, Nb(7) is bonded in a 7-coordinate geometry to one Nb(6), one Nb(9), two equivalent Nb(7), one Sb(6), and two equivalent Sb(5) atoms. The Nb(7)-Nb(9) bond length is 2.81 Å. Both Nb(7)-Nb(7) bond lengths are 2.94 Å. The Nb(7)-Sb(6) bond length is 2.91 Å. There is one shorter (2.95 Å) and one longer (2.99 Å) Nb(7)-Sb(5) bond length. In the eighth Nb site, Nb(8) is bonded in a 3-coordinate geometry to one Nb(3), one Nb(5), one Sb(4), and two equivalent Sb(3) atoms. The Nb(8)-Sb(4) bond length is 2.96 Å. There is one shorter (2.97 Å) and one longer (2.99 Å) Nb(8)-Sb(3) bond length. In the ninth Nb site, Nb(9) is bonded in a 7-coordinate geometry to one Nb(13), one Nb(7), two equivalent Nb(9), one Sb(6), and two equivalent Sb(5) atoms. The Nb(9)-Nb(13) bond length is 2.78 Å. Both Nb(9)-Nb(9) bond lengths are 2.94 Å. The Nb(9)-Sb(6) bond length is 2.98 Å. There is one shorter (2.92 Å) and one longer (2.97 Å) Nb(9)-Sb(5) bond length. In the tenth Nb site, Nb(10) is bonded in a 3-coordinate geometry to one Nb(5), one Nb(6), one Sb(5), and two equivalent Sb(4) atoms. The Nb(10)-Sb(5) bond length is 2.94 Å. There is one shorter (2.95 Å) and one longer (2.97 Å) Nb(10)-Sb(4) bond length. In the eleventh Nb site, Nb(11) is bonded in a 7-coordinate geometry to one Nb(13), one Nb(14), two equivalent Nb(11), one Sb(7), and two equivalent Sb(6) atoms. The Nb(11)-Nb(13) bond length is 2.84 Å. The Nb(11)-Nb(14) bond length is 2.69 Å. Both Nb(11)-Nb(11) bond lengths are 2.94 Å. The Nb(11)-Sb(7) bond length is 3.01 Å. There is one shorter (2.89 Å) and one longer (2.94 Å) Nb(11)-Sb(6) bond length. In the twelfth Nb site, Nb(12) is bonded in a 8-coordinate geometry to one Nb(14), one Nb(4), two equivalent Nb(12), two equivalent Sb(1), and two equivalent Sb(7) atoms. The Nb(12)-Nb(14) bond length is 2.82 Å. Both Nb(12)-Nb(12) bond lengths are 2.94 Å. There is one shorter (2.91 Å) and one longer (3.09 Å) Nb(12)-Sb(1) bond length. There is one shorter (2.87 Å) and one longer (2.96 Å) Nb(12)-Sb(7) bond length. In the thirteenth Nb site, Nb(13) is bonded in a 3-coordinate geometry to one Nb(11), one Nb(9), one Sb(7), and two equivalent Sb(6) atoms. The Nb(13)-Sb(7) bond length is 2.98 Å. There is one shorter (2.93 Å) and one longer (2.97 Å) Nb(13)-Sb(6) bond length. In the fourteenth Nb site, Nb(14) is bonded in a 3-coordinate geometry to one Nb(11), one Nb(12), one Sb(1), and two equivalent Sb(7) atoms. The Nb(14)-Sb(1) bond length is 2.91 Å. Both Nb(14)-Sb(7) bond lengths are 2.93 Å. There are seven inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 10-coordinate geometry to one Nb(1), one Nb(14), one Nb(2), two equivalent Nb(12), two equivalent Nb(4), one Sb(2), and two equivalent Sb(1) atoms. The Sb(1)-Sb(2) bond length is 3.34 Å. Both Sb(1)-Sb(1) bond lengths are 2.94 Å. In the second Sb site, Sb(2) is bonded in a 8-coordinate geometry to one Nb(1), one Nb(4), two equivalent Nb(2), two equivalent Nb(3), one Sb(1), and two equivalent Sb(2) atoms. Both Sb(2)-Sb(2) bond lengths are 2.94 Å. In the third Sb site, Sb(3) is bonded in a 6-coordinate geometry to one Nb(2), one Nb(3), two equivalent Nb(5), and two equivalent Nb(8) atoms. In the fourth Sb site, Sb(4) is bonded in a 6-coordinate geometry to one Nb(5), one Nb(8), two equivalent Nb(10), and two equivalent Nb(6) atoms. In the fifth Sb site, Sb(5) is bonded in a 6-coordinate geometry to one Nb(10), one Nb(6), two equivalent Nb(7), and two equivalent Nb(9) atoms. In the sixth Sb site, Sb(6) is bonded in a 6-coordinate geometry to one Nb(7), one Nb(9), two equivalent Nb(11), and two equivalent Nb(13) atoms. In the seventh Sb site, Sb(7) is bonded in a 7-coordinate geometry to one Nb(11), one Nb(13), one Nb(4), two equivalent Nb(12), and two equivalent Nb(14) atoms.