Ti2VNi9 is Uranium Silicide-derived structured and crystallizes in the hexagonal P-6m2 space group. There are four inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to three equivalent Ni(6); three Ni(7,7,7); and six Ni(4,4,4) atoms to form TiNi12 cuboctahedra that share corners with three equivalent V(1)Ni12 cuboctahedra; corners with three equivalent V(2)Ni12 cuboctahedra; corners with six equivalent Ti(1)Ni12 cuboctahedra; edges with three Ni(1,1,1)Ti2V2Ni8 cuboctahedra; edges with three Ni(2,2)Ti2V2Ni8 cuboctahedra; edges with six equivalent Ni(6)Ti3VNi8 cuboctahedra; edges with six Ni(7,7,7)Ti3VNi8 cuboctahedra; edges with six Ni(4,4,4)Ti4Ni8 cuboctahedra; faces with three equivalent Ti(3)Ni12 cuboctahedra; faces with three equivalent Ti(4)Ni12 cuboctahedra; faces with three equivalent Ni(6)Ti3VNi8 cuboctahedra; faces with three Ni(7,7,7)Ti3VNi8 cuboctahedra; and faces with six Ni(4,4,4)Ti4Ni8 cuboctahedra. In the second Ti site, Ti(2) is bonded to three Ni(1,1,1); three equivalent Ni(3); and six Ni(5,5) atoms to form TiNi12 cuboctahedra that share corners with six equivalent Ti(2)Ni12 cuboctahedra; corners with six Ni(5,5)Ti2V2Ni8 cuboctahedra; corners with six Ni(7,7,7)Ti3VNi8 cuboctahedra; edges with six Ni(1,1,1)Ti2V2Ni8 cuboctahedra; edges with six equivalent Ni(3)Ti2V2Ni8 cuboctahedra; edges with six Ni(5,5)Ti2V2Ni8 cuboctahedra;  a faceface with one Ti(2)Ni12 cuboctahedra;  a faceface with one Ti(4)Ni12 cuboctahedra; faces with three equivalent V(1)Ni12 cuboctahedra; faces with three equivalent V(3)Ni12 cuboctahedra; faces with three Ni(1,1,1)Ti2V2Ni8 cuboctahedra; faces with three equivalent Ni(3)Ti2V2Ni8 cuboctahedra; and faces with six Ni(5,5)Ti2V2Ni8 cuboctahedra. In the third Ti site, Ti(3) is bonded to three Ni(2,2); three Ni(4,4,4); and six equivalent Ni(6) atoms to form TiNi12 cuboctahedra that share corners with six equivalent Ti(3)Ni12 cuboctahedra; corners with six equivalent Ni(6)Ti3VNi8 cuboctahedra; corners with six Ni(7,7,7)Ti3VNi8 cuboctahedra; edges with six Ni(2,2)Ti2V2Ni8 cuboctahedra; edges with six equivalent Ni(6)Ti3VNi8 cuboctahedra; edges with six Ni(4,4,4)Ti4Ni8 cuboctahedra;  a faceface with one Ti(3)Ni12 cuboctahedra;  a faceface with one Ti(4)Ni12 cuboctahedra; faces with three equivalent Ti(1)Ni12 cuboctahedra; faces with three equivalent V(2)Ni12 cuboctahedra; faces with three Ni(2,2)Ti2V2Ni8 cuboctahedra; faces with three Ni(4,4,4)Ti4Ni8 cuboctahedra; and faces with six equivalent Ni(6)Ti3VNi8 cuboctahedra. In the fourth Ti site, Ti(4) is bonded to three Ni(1,1,1); three Ni(4,4,4); and six Ni(7,7,7) atoms to form TiNi12 cuboctahedra that share corners with six equivalent Ti(4)Ni12 cuboctahedra; corners with six Ni(5,5)Ti2V2Ni8 cuboctahedra; corners with six equivalent Ni(6)Ti3VNi8 cuboctahedra; edges with six Ni(1,1,1)Ti2V2Ni8 cuboctahedra; edges with six Ni(7,7,7)Ti3VNi8 cuboctahedra; edges with six Ni(4,4,4)Ti4Ni8 cuboctahedra;  a faceface with one Ti(2)Ni12 cuboctahedra;  a faceface with one Ti(3)Ni12 cuboctahedra; faces with three equivalent Ti(1)Ni12 cuboctahedra; faces with three equivalent V(1)Ni12 cuboctahedra; faces with three Ni(1,1,1)Ti2V2Ni8 cuboctahedra; faces with three Ni(4,4,4)Ti4Ni8 cuboctahedra; and faces with six Ni(7,7,7)Ti3VNi8 cuboctahedra. There are three inequivalent V sites. In the first V site, V(1) is bonded to three Ni(5,5); three Ni(7,7,7); and six Ni(1,1,1) atoms to form VNi12 cuboctahedra that share corners with three equivalent Ti(1)Ni12 cuboctahedra; corners with three equivalent V(3)Ni12 cuboctahedra; corners with six equivalent V(1)Ni12 cuboctahedra; edges with three equivalent Ni(3)Ti2V2Ni8 cuboctahedra; edges with three Ni(4,4,4)Ti4Ni8 cuboctahedra; edges with six Ni(1,1,1)Ti2V2Ni8 cuboctahedra; edges with six Ni(5,5)Ti2V2Ni8 cuboctahedra; edges with six Ni(7,7,7)Ti3VNi8 cuboctahedra; faces with three equivalent Ti(2)Ni12 cuboctahedra; faces with three equivalent Ti(4)Ni12 cuboctahedra; faces with three Ni(5,5)Ti2V2Ni8 cuboctahedra; faces with three Ni(7,7,7)Ti3VNi8 cuboctahedra; and faces with six Ni(1,1,1)Ti2V2Ni8 cuboctahedra. In the second V site, V(2) is bonded to six Ni(2,2) and six equivalent Ni(6) atoms to form VNi12 cuboctahedra that share corners with six equivalent Ti(1)Ni12 cuboctahedra; corners with six equivalent V(2)Ni12 cuboctahedra; edges with six Ni(2,2)Ti2V2Ni8 cuboctahedra; edges with six Ni(4,4,4,4)Ti4Ni8 cuboctahedra; edges with twelve equivalent Ni(6)Ti3VNi8 cuboctahedra; faces with six equivalent Ti(3)Ni12 cuboctahedra; faces with six Ni(2,2)Ti2V2Ni8 cuboctahedra; and faces with six equivalent Ni(6)Ti3VNi8 cuboctahedra. In the third V site, V(3) is bonded to six equivalent Ni(3) and six Ni(5,5) atoms to form VNi12 cuboctahedra that share corners with six equivalent V(1)Ni12 cuboctahedra; corners with six equivalent V(3)Ni12 cuboctahedra; edges with six Ni(1,1,1)Ti2V2Ni8 cuboctahedra; edges with six equivalent Ni(3)Ti2V2Ni8 cuboctahedra; edges with twelve Ni(5,5)Ti2V2Ni8 cuboctahedra; faces with six equivalent Ti(2)Ni12 cuboctahedra; faces with six equivalent Ni(3)Ti2V2Ni8 cuboctahedra; and faces with six Ni(5,5)Ti2V2Ni8 cuboctahedra. There are sixteen inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one Ti(2); one Ti(4); two equivalent V(1); two Ni(5,5); two Ni(7,7); and four Ni(1,1) atoms to form distorted NiTi2V2Ni8 cuboctahedra that share corners with three equivalent Ni(3)Ti2V2Ni8 cuboctahedra; corners with three equivalent Ni(4)Ti4Ni8 cuboctahedra; corners with six equivalent Ni(1)Ti2V2Ni8 cuboctahedra;  an edgeedge with one Ti(1)Ni12 cuboctahedra;  an edgeedge with one V(3)Ni12 cuboctahedra; edges with two equivalent Ti(2)Ni12 cuboctahedra; edges with two equivalent Ti(4)Ni12 cuboctahedra; edges with two equivalent V(1)Ni12 cuboctahedra; edges with two equivalent Ni(3)Ti2V2Ni8 cuboctahedra; edges with two Ni(4,4)Ti4Ni8 cuboctahedra; edges with four Ni(1,1)Ti2V2Ni8 cuboctahedra; edges with four Ni(5,5)Ti2V2Ni8 cuboctahedra; edges with four Ni(7,7)Ti3VNi8 cuboctahedra;  a faceface with one Ti(2)Ni12 cuboctahedra;  a faceface with one Ti(4)Ni12 cuboctahedra; faces with two equivalent V(1)Ni12 cuboctahedra; faces with four Ni(1,1)Ti2V2Ni8 cuboctahedra; faces with five Ni(5,5)Ti2V2Ni8 cuboctahedra; and faces with five Ni(7,7,7)Ti3VNi8 cuboctahedra. In the second Ni site, Ni(2) is bonded to two equivalent Ti(3), two equivalent V(2), four equivalent Ni(2), and four equivalent Ni(6) atoms to form distorted NiTi2V2Ni8 cuboctahedra that share corners with six equivalent Ni(2)Ti2V2Ni8 cuboctahedra; corners with six equivalent Ni(4)Ti4Ni8 cuboctahedra; edges with two equivalent Ti(1)Ni12 cuboctahedra; edges with two equivalent V(2)Ni12 cuboctahedra; edges with four equivalent Ti(3)Ni12 cuboctahedra; edges with four equivalent Ni(2)Ti2V2Ni8 cuboctahedra; edges with four Ni(4,4,4)Ti4Ni8 cuboctahedra; edges with eight equivalent Ni(6)Ti3VNi8 cuboctahedra; faces with two equivalent Ti(3)Ni12 cuboctahedra; faces with two equivalent V(2)Ni12 cuboctahedra; faces with four equivalent Ni(2)Ti2V2Ni8 cuboctahedra; and faces with ten equivalent Ni(6)Ti3VNi8 cuboctahedra. In the third Ni site, Ni(1) is bonded to one Ti(2); one Ti(4); two equivalent V(1); two equivalent Ni(5); two Ni(7,7); and four Ni(1,1) atoms to form distorted NiTi2V2Ni8 cuboctahedra that share corners with three equivalent Ni(3)Ti2V2Ni8 cuboctahedra; corners with three equivalent Ni(4)Ti4Ni8 cuboctahedra; corners with six equivalent Ni(1)Ti2V2Ni8 cuboctahedra;  an edgeedge with one Ti(1)Ni12 cuboctahedra;  an edgeedge with one V(3)Ni12 cuboctahedra; edges with two equivalent Ti(2)Ni12 cuboctahedra; edges with two equivalent Ti(4)Ni12 cuboctahedra; edges with two equivalent V(1)Ni12 cuboctahedra; edges with two equivalent Ni(3)Ti2V2Ni8 cuboctahedra; edges with two Ni(4,4)Ti4Ni8 cuboctahedra; edges with four Ni(1,1)Ti2V2Ni8 cuboctahedra; edges with four equivalent Ni(5)Ti2V2Ni8 cuboctahedra; edges with four Ni(7,7)Ti3VNi8 cuboctahedra;  a faceface with one Ti(2)Ni12 cuboctahedra;  a faceface with one Ti(4)Ni12 cuboctahedra; faces with two equivalent V(1)Ni12 cuboctahedra; faces with four Ni(1,1)Ti2V2Ni8 cuboctahedra; faces with five Ni(5,5)Ti2V2Ni8 cuboctahedra; and faces with five Ni(7,7,7)Ti3VNi8 cuboctahedra. In the fourth Ni site, Ni(2) is bonded to two equivalent Ti(3); two equivalent V(2); four Ni(2,2); and four equivalent Ni(6) atoms to form distorted NiTi2V2Ni8 cuboctahedra that share corners with six equivalent Ni(2)Ti2V2Ni8 cuboctahedra; corners with six Ni(4,4)Ti4Ni8 cuboctahedra; edges with two equivalent Ti(1)Ni12 cuboctahedra; edges with two equivalent V(2)Ni12 cuboctahedra; edges with four equivalent Ti(3)Ni12 cuboctahedra; edges with four Ni(2,2)Ti2V2Ni8 cuboctahedra; edges with four Ni(4,4)Ti4Ni8 cuboctahedra; edges with eight equivalent Ni(6)Ti3VNi8 cuboctahedra; faces with two equivalent Ti(3)Ni12 cuboctahedra; faces with two equivalent V(2)Ni12 cuboctahedra; faces with four Ni(2,2)Ti2V2Ni8 cuboctahedra; and faces with ten equivalent Ni(6)Ti3VNi8 cuboctahedra. In the fifth Ni site, Ni(1) is bonded to one Ti(2); one Ti(4); two equivalent V(1); two Ni(5,5); two Ni(7,7); and four Ni(1,1) atoms to form distorted NiTi2V2Ni8 cuboctahedra that share corners with three equivalent Ni(3)Ti2V2Ni8 cuboctahedra; corners with three equivalent Ni(4)Ti4Ni8 cuboctahedra; corners with six equivalent Ni(1)Ti2V2Ni8 cuboctahedra;  an edgeedge with one Ti(1)Ni12 cuboctahedra;  an edgeedge with one V(3)Ni12 cuboctahedra; edges with two equivalent Ti(2)Ni12 cuboctahedra; edges with two equivalent Ti(4)Ni12 cuboctahedra; edges with two equivalent V(1)Ni12 cuboctahedra; edges with two equivalent Ni(3)Ti2V2Ni8 cuboctahedra; edges with two Ni(4,4)Ti4Ni8 cuboctahedra; edges with four Ni(1,1)Ti2V2Ni8 cuboctahedra; edges with four Ni(5,5)Ti2V2Ni8 cuboctahedra; edges with four Ni(7,7)Ti3VNi8 cuboctahedra;  a faceface with one Ti(2)Ni12 cuboctahedra;  a faceface with one Ti(4)Ni12 cuboctahedra; faces with two equivalent V(1)Ni12 cuboctahedra; faces with four Ni(1,1)Ti2V2Ni8 cuboctahedra; faces with five Ni(5,5)Ti2V2Ni8 cuboctahedra; and faces with five Ni(7,7,7)Ti3VNi8 cuboctahedra. In the sixth Ni site, Ni(3) is bonded to two equivalent Ti(2); two equivalent V(3); four equivalent Ni(3); and four Ni(5,5) atoms to form distorted NiTi2V2Ni8 cuboctahedra that share corners with six equivalent Ni(1)Ti2V2Ni8 cuboctahedra; corners with six equivalent Ni(3)Ti2V2Ni8 cuboctahedra; edges with two equivalent V(1)Ni12 cuboctahedra; edges with two equivalent V(3)Ni12 cuboctahedra; edges with four equivalent Ti(2)Ni12 cuboctahedra; edges with four Ni(1,1)Ti2V2Ni8 cuboctahedra; edges with four equivalent Ni(3)Ti2V2Ni8 cuboctahedra; edges with eight Ni(5,5)Ti2V2Ni8 cuboctahedra; faces with two equivalent Ti(2)Ni12 cuboctahedra; faces with two equivalent V(3)Ni12 cuboctahedra; faces with four equivalent Ni(3)Ti2V2Ni8 cuboctahedra; and faces with ten Ni(5,5)Ti2V2Ni8 cuboctahedra. In the seventh Ni site, Ni(4) is bonded to one Ti(3); one Ti(4); two equivalent Ti(1); two equivalent Ni(6); two Ni(7,7); and four Ni(4,4) atoms to form distorted NiTi4Ni8 cuboctahedra that share corners with three equivalent Ni(1)Ti2V2Ni8 cuboctahedra; corners with three equivalent Ni(2)Ti2V2Ni8 cuboctahedra; corners with six equivalent Ni(4)Ti4Ni8 cuboctahedra;  an edgeedge with one V(1)Ni12 cuboctahedra;  an edgeedge with one V(2)Ni12 cuboctahedra; edges with two equivalent Ti(1)Ni12 cuboctahedra; edges with two equivalent Ti(3)Ni12 cuboctahedra; edges with two equivalent Ti(4)Ni12 cuboctahedra; edges with two Ni(1,1)Ti2V2Ni8 cuboctahedra; edges with two equivalent Ni(2)Ti2V2Ni8 cuboctahedra; edges with four equivalent Ni(6)Ti3VNi8 cuboctahedra; edges with four Ni(7,7)Ti3VNi8 cuboctahedra; edges with four Ni(4,4)Ti4Ni8 cuboctahedra;  a faceface with one Ti(3)Ni12 cuboctahedra;  a faceface with one Ti(4)Ni12 cuboctahedra; faces with two equivalent Ti(1)Ni12 cuboctahedra; faces with four Ni(4,4)Ti4Ni8 cuboctahedra; faces with five equivalent Ni(6)Ti3VNi8 cuboctahedra; and faces with five Ni(7,7,7)Ti3VNi8 cuboctahedra. In the eighth Ni site, Ni(4) is bonded to one Ti(3); one Ti(4); two equivalent Ti(1); two equivalent Ni(6); two Ni(7,7); and four Ni(4,4) atoms to form distorted NiTi4Ni8 cuboctahedra that share corners with three equivalent Ni(1)Ti2V2Ni8 cuboctahedra; corners with three equivalent Ni(2)Ti2V2Ni8 cuboctahedra; corners with six equivalent Ni(4)Ti4Ni8 cuboctahedra;  an edgeedge with one V(1)Ni12 cuboctahedra;  an edgeedge with one V(2)Ni12 cuboctahedra; edges with two equivalent Ti(1)Ni12 cuboctahedra; edges with two equivalent Ti(3)Ni12 cuboctahedra; edges with two equivalent Ti(4)Ni12 cuboctahedra; edges with two Ni(1,1)Ti2V2Ni8 cuboctahedra; edges with two Ni(2,2)Ti2V2Ni8 cuboctahedra; edges with four equivalent Ni(6)Ti3VNi8 cuboctahedra; edges with four Ni(7,7)Ti3VNi8 cuboctahedra; edges with four Ni(4,4)Ti4Ni8 cuboctahedra;  a faceface with one Ti(3)Ni12 cuboctahedra;  a faceface with one Ti(4)Ni12 cuboctahedra; faces with two equivalent Ti(1)Ni12 cuboctahedra; faces with four Ni(4,4)Ti4Ni8 cuboctahedra; faces with five equivalent Ni(6)Ti3VNi8 cuboctahedra; and faces with five Ni(7,7,7)Ti3VNi8 cuboctahedra. In the ninth Ni site, Ni(4) is bonded to one Ti(3); one Ti(4); two equivalent Ti(1); two equivalent Ni(6); two Ni(7,7); and four Ni(4,4) atoms to form distorted NiTi4Ni8 cuboctahedra that share corners with three equivalent Ni(1)Ti2V2Ni8 cuboctahedra; corners with three equivalent Ni(2)Ti2V2Ni8 cuboctahedra; corners with six equivalent Ni(4)Ti4Ni8 cuboctahedra;  an edgeedge with one V(1)Ni12 cuboctahedra;  an edgeedge with one V(2)Ni12 cuboctahedra; edges with two equivalent Ti(1)Ni12 cuboctahedra; edges with two equivalent Ti(3)Ni12 cuboctahedra; edges with two equivalent Ti(4)Ni12 cuboctahedra; edges with two Ni(1,1)Ti2V2Ni8 cuboctahedra; edges with two Ni(2,2)Ti2V2Ni8 cuboctahedra; edges with four equivalent Ni(6)Ti3VNi8 cuboctahedra; edges with four Ni(7,7)Ti3VNi8 cuboctahedra; edges with four Ni(4,4)Ti4Ni8 cuboctahedra;  a faceface with one Ti(3)Ni12 cuboctahedra;  a faceface with one Ti(4)Ni12 cuboctahedra; faces with two equivalent Ti(1)Ni12 cuboctahedra; faces with four Ni(4,4)Ti4Ni8 cuboctahedra; faces with five equivalent Ni(6)Ti3VNi8 cuboctahedra; and faces with five Ni(7,7,7)Ti3VNi8 cuboctahedra. In the tenth Ni site, Ni(4) is bonded to one Ti(3); one Ti(4); two equivalent Ti(1); two equivalent Ni(6); two Ni(7,7); and four Ni(4,4) atoms to form distorted NiTi4Ni8 cuboctahedra that share corners with three equivalent Ni(1)Ti2V2Ni8 cuboctahedra; corners with three equivalent Ni(2)Ti2V2Ni8 cuboctahedra; corners with six equivalent Ni(4)Ti4Ni8 cuboctahedra;  an edgeedge with one V(1)Ni12 cuboctahedra;  an edgeedge with one V(2)Ni12 cuboctahedra; edges with two equivalent Ti(1)Ni12 cuboctahedra; edges with two equivalent Ti(3)Ni12 cuboctahedra; edges with two equivalent Ti(4)Ni12 cuboctahedra; edges with two Ni(1,1)Ti2V2Ni8 cuboctahedra; edges with two Ni(2,2)Ti2V2Ni8 cuboctahedra; edges with four equivalent Ni(6)Ti3VNi8 cuboctahedra; edges with four Ni(7,7)Ti3VNi8 cuboctahedra; edges with four Ni(4,4)Ti4Ni8 cuboctahedra;  a faceface with one Ti(3)Ni12 cuboctahedra;  a faceface with one Ti(4)Ni12 cuboctahedra; faces with two equivalent Ti(1)Ni12 cuboctahedra; faces with four Ni(4,4)Ti4Ni8 cuboctahedra; faces with five equivalent Ni(6)Ti3VNi8 cuboctahedra; and faces with five Ni(7,7,7)Ti3VNi8 cuboctahedra. In the eleventh Ni site, Ni(5) is bonded to two equivalent Ti(2); one V(1); one V(3); two Ni(1,1); two equivalent Ni(3); and four Ni(5,5) atoms to form distorted NiTi2V2Ni8 cuboctahedra that share corners with two equivalent Ti(2)Ni12 cuboctahedra; corners with two equivalent Ti(4)Ni12 cuboctahedra; corners with four Ni(7,7)Ti3VNi8 cuboctahedra; corners with ten Ni(5,5)Ti2V2Ni8 cuboctahedra; edges with two equivalent Ti(2)Ni12 cuboctahedra; edges with two equivalent V(1)Ni12 cuboctahedra; edges with two equivalent V(3)Ni12 cuboctahedra; edges with four Ni(1,1)Ti2V2Ni8 cuboctahedra; edges with four equivalent Ni(3)Ti2V2Ni8 cuboctahedra; edges with four Ni(5,5)Ti2V2Ni8 cuboctahedra;  a faceface with one V(1)Ni12 cuboctahedra;  a faceface with one V(3)Ni12 cuboctahedra;  a faceface with one Ni(7)Ti3VNi8 cuboctahedra; faces with two equivalent Ti(2)Ni12 cuboctahedra; faces with five Ni(1,1,1)Ti2V2Ni8 cuboctahedra; faces with five equivalent Ni(3)Ti2V2Ni8 cuboctahedra; and faces with five Ni(5,5)Ti2V2Ni8 cuboctahedra. In the twelfth Ni site, Ni(6) is bonded to one Ti(1); two equivalent Ti(3); one V(2); two Ni(2,2); two Ni(4,4); and four equivalent Ni(6) atoms to form distorted NiTi3VNi8 cuboctahedra that share corners with two equivalent Ti(3)Ni12 cuboctahedra; corners with two equivalent Ti(4)Ni12 cuboctahedra; corners with four Ni(7,7)Ti3VNi8 cuboctahedra; corners with ten equivalent Ni(6)Ti3VNi8 cuboctahedra; edges with two equivalent Ti(1)Ni12 cuboctahedra; edges with two equivalent Ti(3)Ni12 cuboctahedra; edges with two equivalent V(2)Ni12 cuboctahedra; edges with four Ni(2,2)Ti2V2Ni8 cuboctahedra; edges with four equivalent Ni(6)Ti3VNi8 cuboctahedra; edges with four Ni(4,4)Ti4Ni8 cuboctahedra;  a faceface with one Ti(1)Ni12 cuboctahedra;  a faceface with one V(2)Ni12 cuboctahedra;  a faceface with one Ni(7)Ti3VNi8 cuboctahedra; faces with two equivalent Ti(3)Ni12 cuboctahedra; faces with five Ni(2,2)Ti2V2Ni8 cuboctahedra; faces with five equivalent Ni(6)Ti3VNi8 cuboctahedra; and faces with five Ni(4,4,4)Ti4Ni8 cuboctahedra. In the thirteenth Ni site, Ni(7) is bonded to one Ti(1); two equivalent Ti(4); one V(1); two Ni(1,1); two Ni(4,4); and four Ni(7,7) atoms to form distorted NiTi3VNi8 cuboctahedra that share corners with two equivalent Ti(2)Ni12 cuboctahedra; corners with two equivalent Ti(3)Ni12 cuboctahedra; corners with four Ni(5,5)Ti2V2Ni8 cuboctahedra; corners with four equivalent Ni(6)Ti3VNi8 cuboctahedra; corners with six equivalent Ni(7)Ti3VNi8 cuboctahedra; edges with two equivalent Ti(1)Ni12 cuboctahedra; edges with two equivalent Ti(4)Ni12 cuboctahedra; edges with two equivalent V(1)Ni12 cuboctahedra; edges with four Ni(1,1)Ti2V2Ni8 cuboctahedra; edges with four Ni(7,7)Ti3VNi8 cuboctahedra; edges with four Ni(4,4)Ti4Ni8 cuboctahedra;  a faceface with one Ti(1)Ni12 cuboctahedra;  a faceface with one V(1)Ni12 cuboctahedra;  a faceface with one Ni(5)Ti2V2Ni8 cuboctahedra;  a faceface with one Ni(6)Ti3VNi8 cuboctahedra; faces with two equivalent Ti(4)Ni12 cuboctahedra; faces with four Ni(7,7)Ti3VNi8 cuboctahedra; faces with five Ni(1,1,1)Ti2V2Ni8 cuboctahedra; and faces with five Ni(4,4,4)Ti4Ni8 cuboctahedra. In the fourteenth Ni site, Ni(7) is bonded to one Ti(1); two equivalent Ti(4); one V(1); two Ni(1,1); two Ni(4,4); and four Ni(7,7) atoms to form distorted NiTi3VNi8 cuboctahedra that share corners with two equivalent Ti(2)Ni12 cuboctahedra; corners with two equivalent Ti(3)Ni12 cuboctahedra; corners with four Ni(5,5)Ti2V2Ni8 cuboctahedra; corners with four equivalent Ni(6)Ti3VNi8 cuboctahedra; corners with six equivalent Ni(7)Ti3VNi8 cuboctahedra; edges with two equivalent Ti(1)Ni12 cuboctahedra; edges with two equivalent Ti(4)Ni12 cuboctahedra; edges with two equivalent V(1)Ni12 cuboctahedra; edges with four Ni(1,1)Ti2V2Ni8 cuboctahedra; edges with four Ni(7,7)Ti3VNi8 cuboctahedra; edges with four Ni(4,4)Ti4Ni8 cuboctahedra;  a faceface with one Ti(1)Ni12 cuboctahedra;  a faceface with one V(1)Ni12 cuboctahedra;  a faceface with one Ni(5)Ti2V2Ni8 cuboctahedra;  a faceface with one Ni(6)Ti3VNi8 cuboctahedra; faces with two equivalent Ti(4)Ni12 cuboctahedra; faces with four Ni(7,7)Ti3VNi8 cuboctahedra; faces with five Ni(1,1,1)Ti2V2Ni8 cuboctahedra; and faces with five Ni(4,4,4)Ti4Ni8 cuboctahedra. In the fifteenth Ni site, Ni(5) is bonded to two equivalent Ti(2); one V(1); one V(3); two Ni(1,1); two equivalent Ni(3); and four equivalent Ni(5) atoms to form distorted NiTi2V2Ni8 cuboctahedra that share corners with two equivalent Ti(2)Ni12 cuboctahedra; corners with two equivalent Ti(4)Ni12 cuboctahedra; corners with four Ni(7,7)Ti3VNi8 cuboctahedra; corners with ten Ni(5,5)Ti2V2Ni8 cuboctahedra; edges with two equivalent Ti(2)Ni12 cuboctahedra; edges with two equivalent V(1)Ni12 cuboctahedra; edges with two equivalent V(3)Ni12 cuboctahedra; edges with four Ni(1,1)Ti2V2Ni8 cuboctahedra; edges with four equivalent Ni(3)Ti2V2Ni8 cuboctahedra; edges with four equivalent Ni(5)Ti2V2Ni8 cuboctahedra;  a faceface with one V(1)Ni12 cuboctahedra;  a faceface with one V(3)Ni12 cuboctahedra;  a faceface with one Ni(7)Ti3VNi8 cuboctahedra; faces with two equivalent Ti(2)Ni12 cuboctahedra; faces with five Ni(1,1,1)Ti2V2Ni8 cuboctahedra; faces with five equivalent Ni(3)Ti2V2Ni8 cuboctahedra; and faces with five Ni(5,5)Ti2V2Ni8 cuboctahedra. In the sixteenth Ni site, Ni(7) is bonded to one Ti(1); two equivalent Ti(4); one V(1); two Ni(1,1); two Ni(4,4); and four Ni(7,7) atoms to form distorted NiTi3VNi8 cuboctahedra that share corners with two equivalent Ti(2)Ni12 cuboctahedra; corners with two equivalent Ti(3)Ni12 cuboctahedra; corners with four equivalent Ni(5)Ti2V2Ni8 cuboctahedra; corners with four equivalent Ni(6)Ti3VNi8 cuboctahedra; corners with six equivalent Ni(7)Ti3VNi8 cuboctahedra; edges with two equivalent Ti(1)Ni12 cuboctahedra; edges with two equivalent Ti(4)Ni12 cuboctahedra; edges with two equivalent V(1)Ni12 cuboctahedra; edges with four Ni(1,1)Ti2V2Ni8 cuboctahedra; edges with four Ni(7,7)Ti3VNi8 cuboctahedra; edges with four Ni(4,4)Ti4Ni8 cuboctahedra;  a faceface with one Ti(1)Ni12 cuboctahedra;  a faceface with one V(1)Ni12 cuboctahedra;  a faceface with one Ni(5)Ti2V2Ni8 cuboctahedra;  a faceface with one Ni(6)Ti3VNi8 cuboctahedra; faces with two equivalent Ti(4)Ni12 cuboctahedra; faces with four Ni(7,7)Ti3VNi8 cuboctahedra; faces with five Ni(1,1,1)Ti2V2Ni8 cuboctahedra; and faces with five Ni(4,4,4)Ti4Ni8 cuboctahedra.
Ti2VNi9 is Uranium Silicide-derived structured and crystallizes in the hexagonal P-6m2 space group. There are four inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to three equivalent Ni(6); three Ni(7,7,7); and six Ni(4,4,4) atoms to form TiNi12 cuboctahedra that share corners with three equivalent V(1)Ni12 cuboctahedra; corners with three equivalent V(2)Ni12 cuboctahedra; corners with six equivalent Ti(1)Ni12 cuboctahedra; edges with three Ni(1,1,1)Ti2V2Ni8 cuboctahedra; edges with three Ni(2,2)Ti2V2Ni8 cuboctahedra; edges with six equivalent Ni(6)Ti3VNi8 cuboctahedra; edges with six Ni(7,7,7)Ti3VNi8 cuboctahedra; edges with six Ni(4,4,4)Ti4Ni8 cuboctahedra; faces with three equivalent Ti(3)Ni12 cuboctahedra; faces with three equivalent Ti(4)Ni12 cuboctahedra; faces with three equivalent Ni(6)Ti3VNi8 cuboctahedra; faces with three Ni(7,7,7)Ti3VNi8 cuboctahedra; and faces with six Ni(4,4,4)Ti4Ni8 cuboctahedra. All Ti(1)-Ni(6) bond lengths are 2.55 Å. All Ti(1)-Ni(7,7,7) bond lengths are 2.55 Å. All Ti(1)-Ni(4,4,4) bond lengths are 2.52 Å. In the second Ti site, Ti(2) is bonded to three Ni(1,1,1); three equivalent Ni(3); and six Ni(5,5) atoms to form TiNi12 cuboctahedra that share corners with six equivalent Ti(2)Ni12 cuboctahedra; corners with six Ni(5,5)Ti2V2Ni8 cuboctahedra; corners with six Ni(7,7,7)Ti3VNi8 cuboctahedra; edges with six Ni(1,1,1)Ti2V2Ni8 cuboctahedra; edges with six equivalent Ni(3)Ti2V2Ni8 cuboctahedra; edges with six Ni(5,5)Ti2V2Ni8 cuboctahedra;  a faceface with one Ti(2)Ni12 cuboctahedra;  a faceface with one Ti(4)Ni12 cuboctahedra; faces with three equivalent V(1)Ni12 cuboctahedra; faces with three equivalent V(3)Ni12 cuboctahedra; faces with three Ni(1,1,1)Ti2V2Ni8 cuboctahedra; faces with three equivalent Ni(3)Ti2V2Ni8 cuboctahedra; and faces with six Ni(5,5)Ti2V2Ni8 cuboctahedra. All Ti(2)-Ni(1,1,1) bond lengths are 2.55 Å. All Ti(2)-Ni(3) bond lengths are 2.55 Å. All Ti(2)-Ni(5,5) bond lengths are 2.52 Å. In the third Ti site, Ti(3) is bonded to three Ni(2,2); three Ni(4,4,4); and six equivalent Ni(6) atoms to form TiNi12 cuboctahedra that share corners with six equivalent Ti(3)Ni12 cuboctahedra; corners with six equivalent Ni(6)Ti3VNi8 cuboctahedra; corners with six Ni(7,7,7)Ti3VNi8 cuboctahedra; edges with six Ni(2,2)Ti2V2Ni8 cuboctahedra; edges with six equivalent Ni(6)Ti3VNi8 cuboctahedra; edges with six Ni(4,4,4)Ti4Ni8 cuboctahedra;  a faceface with one Ti(3)Ni12 cuboctahedra;  a faceface with one Ti(4)Ni12 cuboctahedra; faces with three equivalent Ti(1)Ni12 cuboctahedra; faces with three equivalent V(2)Ni12 cuboctahedra; faces with three Ni(2,2)Ti2V2Ni8 cuboctahedra; faces with three Ni(4,4,4)Ti4Ni8 cuboctahedra; and faces with six equivalent Ni(6)Ti3VNi8 cuboctahedra. All Ti(3)-Ni(2,2) bond lengths are 2.56 Å. All Ti(3)-Ni(4,4,4) bond lengths are 2.55 Å. All Ti(3)-Ni(6) bond lengths are 2.52 Å. In the fourth Ti site, Ti(4) is bonded to three Ni(1,1,1); three Ni(4,4,4); and six Ni(7,7,7) atoms to form TiNi12 cuboctahedra that share corners with six equivalent Ti(4)Ni12 cuboctahedra; corners with six Ni(5,5)Ti2V2Ni8 cuboctahedra; corners with six equivalent Ni(6)Ti3VNi8 cuboctahedra; edges with six Ni(1,1,1)Ti2V2Ni8 cuboctahedra; edges with six Ni(7,7,7)Ti3VNi8 cuboctahedra; edges with six Ni(4,4,4)Ti4Ni8 cuboctahedra;  a faceface with one Ti(2)Ni12 cuboctahedra;  a faceface with one Ti(3)Ni12 cuboctahedra; faces with three equivalent Ti(1)Ni12 cuboctahedra; faces with three equivalent V(1)Ni12 cuboctahedra; faces with three Ni(1,1,1)Ti2V2Ni8 cuboctahedra; faces with three Ni(4,4,4)Ti4Ni8 cuboctahedra; and faces with six Ni(7,7,7)Ti3VNi8 cuboctahedra. All Ti(4)-Ni(1,1,1) bond lengths are 2.56 Å. All Ti(4)-Ni(4,4,4) bond lengths are 2.55 Å. All Ti(4)-Ni(7,7,7) bond lengths are 2.52 Å. There are three inequivalent V sites. In the first V site, V(1) is bonded to three Ni(5,5); three Ni(7,7,7); and six Ni(1,1,1) atoms to form VNi12 cuboctahedra that share corners with three equivalent Ti(1)Ni12 cuboctahedra; corners with three equivalent V(3)Ni12 cuboctahedra; corners with six equivalent V(1)Ni12 cuboctahedra; edges with three equivalent Ni(3)Ti2V2Ni8 cuboctahedra; edges with three Ni(4,4,4)Ti4Ni8 cuboctahedra; edges with six Ni(1,1,1)Ti2V2Ni8 cuboctahedra; edges with six Ni(5,5)Ti2V2Ni8 cuboctahedra; edges with six Ni(7,7,7)Ti3VNi8 cuboctahedra; faces with three equivalent Ti(2)Ni12 cuboctahedra; faces with three equivalent Ti(4)Ni12 cuboctahedra; faces with three Ni(5,5)Ti2V2Ni8 cuboctahedra; faces with three Ni(7,7,7)Ti3VNi8 cuboctahedra; and faces with six Ni(1,1,1)Ti2V2Ni8 cuboctahedra. All V(1)-Ni(5,5) bond lengths are 2.53 Å. All V(1)-Ni(7,7,7) bond lengths are 2.51 Å. All V(1)-Ni(1,1,1) bond lengths are 2.52 Å. In the second V site, V(2) is bonded to six Ni(2,2) and six equivalent Ni(6) atoms to form VNi12 cuboctahedra that share corners with six equivalent Ti(1)Ni12 cuboctahedra; corners with six equivalent V(2)Ni12 cuboctahedra; edges with six Ni(2,2)Ti2V2Ni8 cuboctahedra; edges with six Ni(4,4,4,4)Ti4Ni8 cuboctahedra; edges with twelve equivalent Ni(6)Ti3VNi8 cuboctahedra; faces with six equivalent Ti(3)Ni12 cuboctahedra; faces with six Ni(2,2)Ti2V2Ni8 cuboctahedra; and faces with six equivalent Ni(6)Ti3VNi8 cuboctahedra. All V(2)-Ni(2,2) bond lengths are 2.52 Å. All V(2)-Ni(6) bond lengths are 2.52 Å. In the third V site, V(3) is bonded to six equivalent Ni(3) and six Ni(5,5) atoms to form VNi12 cuboctahedra that share corners with six equivalent V(1)Ni12 cuboctahedra; corners with six equivalent V(3)Ni12 cuboctahedra; edges with six Ni(1,1,1)Ti2V2Ni8 cuboctahedra; edges with six equivalent Ni(3)Ti2V2Ni8 cuboctahedra; edges with twelve Ni(5,5)Ti2V2Ni8 cuboctahedra; faces with six equivalent Ti(2)Ni12 cuboctahedra; faces with six equivalent Ni(3)Ti2V2Ni8 cuboctahedra; and faces with six Ni(5,5)Ti2V2Ni8 cuboctahedra. All V(3)-Ni(3) bond lengths are 2.52 Å. All V(3)-Ni(5,5) bond lengths are 2.54 Å. There are sixteen inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one Ti(2); one Ti(4); two equivalent V(1); two Ni(5,5); two Ni(7,7); and four Ni(1,1) atoms to form distorted NiTi2V2Ni8 cuboctahedra that share corners with three equivalent Ni(3)Ti2V2Ni8 cuboctahedra; corners with three equivalent Ni(4)Ti4Ni8 cuboctahedra; corners with six equivalent Ni(1)Ti2V2Ni8 cuboctahedra;  an edgeedge with one Ti(1)Ni12 cuboctahedra;  an edgeedge with one V(3)Ni12 cuboctahedra; edges with two equivalent Ti(2)Ni12 cuboctahedra; edges with two equivalent Ti(4)Ni12 cuboctahedra; edges with two equivalent V(1)Ni12 cuboctahedra; edges with two equivalent Ni(3)Ti2V2Ni8 cuboctahedra; edges with two Ni(4,4)Ti4Ni8 cuboctahedra; edges with four Ni(1,1)Ti2V2Ni8 cuboctahedra; edges with four Ni(5,5)Ti2V2Ni8 cuboctahedra; edges with four Ni(7,7)Ti3VNi8 cuboctahedra;  a faceface with one Ti(2)Ni12 cuboctahedra;  a faceface with one Ti(4)Ni12 cuboctahedra; faces with two equivalent V(1)Ni12 cuboctahedra; faces with four Ni(1,1)Ti2V2Ni8 cuboctahedra; faces with five Ni(5,5)Ti2V2Ni8 cuboctahedra; and faces with five Ni(7,7,7)Ti3VNi8 cuboctahedra. Both Ni(1)-Ni(5,5) bond lengths are 2.52 Å. Both Ni(1)-Ni(7,7) bond lengths are 2.52 Å. There are two shorter (2.46 Å) and two longer (2.58 Å) Ni(1)-Ni(1,1) bond lengths. In the second Ni site, Ni(2) is bonded to two equivalent Ti(3), two equivalent V(2), four equivalent Ni(2), and four equivalent Ni(6) atoms to form distorted NiTi2V2Ni8 cuboctahedra that share corners with six equivalent Ni(2)Ti2V2Ni8 cuboctahedra; corners with six equivalent Ni(4)Ti4Ni8 cuboctahedra; edges with two equivalent Ti(1)Ni12 cuboctahedra; edges with two equivalent V(2)Ni12 cuboctahedra; edges with four equivalent Ti(3)Ni12 cuboctahedra; edges with four equivalent Ni(2)Ti2V2Ni8 cuboctahedra; edges with four Ni(4,4,4)Ti4Ni8 cuboctahedra; edges with eight equivalent Ni(6)Ti3VNi8 cuboctahedra; faces with two equivalent Ti(3)Ni12 cuboctahedra; faces with two equivalent V(2)Ni12 cuboctahedra; faces with four equivalent Ni(2)Ti2V2Ni8 cuboctahedra; and faces with ten equivalent Ni(6)Ti3VNi8 cuboctahedra. There are two shorter (2.47 Å) and two longer (2.58 Å) Ni(2)-Ni(2) bond lengths. All Ni(2)-Ni(6) bond lengths are 2.52 Å. In the third Ni site, Ni(1) is bonded to one Ti(2); one Ti(4); two equivalent V(1); two equivalent Ni(5); two Ni(7,7); and four Ni(1,1) atoms to form distorted NiTi2V2Ni8 cuboctahedra that share corners with three equivalent Ni(3)Ti2V2Ni8 cuboctahedra; corners with three equivalent Ni(4)Ti4Ni8 cuboctahedra; corners with six equivalent Ni(1)Ti2V2Ni8 cuboctahedra;  an edgeedge with one Ti(1)Ni12 cuboctahedra;  an edgeedge with one V(3)Ni12 cuboctahedra; edges with two equivalent Ti(2)Ni12 cuboctahedra; edges with two equivalent Ti(4)Ni12 cuboctahedra; edges with two equivalent V(1)Ni12 cuboctahedra; edges with two equivalent Ni(3)Ti2V2Ni8 cuboctahedra; edges with two Ni(4,4)Ti4Ni8 cuboctahedra; edges with four Ni(1,1)Ti2V2Ni8 cuboctahedra; edges with four equivalent Ni(5)Ti2V2Ni8 cuboctahedra; edges with four Ni(7,7)Ti3VNi8 cuboctahedra;  a faceface with one Ti(2)Ni12 cuboctahedra;  a faceface with one Ti(4)Ni12 cuboctahedra; faces with two equivalent V(1)Ni12 cuboctahedra; faces with four Ni(1,1)Ti2V2Ni8 cuboctahedra; faces with five Ni(5,5)Ti2V2Ni8 cuboctahedra; and faces with five Ni(7,7,7)Ti3VNi8 cuboctahedra. Both Ni(1)-Ni(5) bond lengths are 2.52 Å. Both Ni(1)-Ni(7,7) bond lengths are 2.52 Å. There is one shorter (2.46 Å) and one longer (2.58 Å) Ni(1)-Ni(1) bond length. In the fourth Ni site, Ni(2) is bonded to two equivalent Ti(3); two equivalent V(2); four Ni(2,2); and four equivalent Ni(6) atoms to form distorted NiTi2V2Ni8 cuboctahedra that share corners with six equivalent Ni(2)Ti2V2Ni8 cuboctahedra; corners with six Ni(4,4)Ti4Ni8 cuboctahedra; edges with two equivalent Ti(1)Ni12 cuboctahedra; edges with two equivalent V(2)Ni12 cuboctahedra; edges with four equivalent Ti(3)Ni12 cuboctahedra; edges with four Ni(2,2)Ti2V2Ni8 cuboctahedra; edges with four Ni(4,4)Ti4Ni8 cuboctahedra; edges with eight equivalent Ni(6)Ti3VNi8 cuboctahedra; faces with two equivalent Ti(3)Ni12 cuboctahedra; faces with two equivalent V(2)Ni12 cuboctahedra; faces with four Ni(2,2)Ti2V2Ni8 cuboctahedra; and faces with ten equivalent Ni(6)Ti3VNi8 cuboctahedra. There is one shorter (2.47 Å) and one longer (2.58 Å) Ni(2)-Ni(2) bond length. All Ni(2)-Ni(6) bond lengths are 2.52 Å. In the fifth Ni site, Ni(1) is bonded to one Ti(2); one Ti(4); two equivalent V(1); two Ni(5,5); two Ni(7,7); and four Ni(1,1) atoms to form distorted NiTi2V2Ni8 cuboctahedra that share corners with three equivalent Ni(3)Ti2V2Ni8 cuboctahedra; corners with three equivalent Ni(4)Ti4Ni8 cuboctahedra; corners with six equivalent Ni(1)Ti2V2Ni8 cuboctahedra;  an edgeedge with one Ti(1)Ni12 cuboctahedra;  an edgeedge with one V(3)Ni12 cuboctahedra; edges with two equivalent Ti(2)Ni12 cuboctahedra; edges with two equivalent Ti(4)Ni12 cuboctahedra; edges with two equivalent V(1)Ni12 cuboctahedra; edges with two equivalent Ni(3)Ti2V2Ni8 cuboctahedra; edges with two Ni(4,4)Ti4Ni8 cuboctahedra; edges with four Ni(1,1)Ti2V2Ni8 cuboctahedra; edges with four Ni(5,5)Ti2V2Ni8 cuboctahedra; edges with four Ni(7,7)Ti3VNi8 cuboctahedra;  a faceface with one Ti(2)Ni12 cuboctahedra;  a faceface with one Ti(4)Ni12 cuboctahedra; faces with two equivalent V(1)Ni12 cuboctahedra; faces with four Ni(1,1)Ti2V2Ni8 cuboctahedra; faces with five Ni(5,5)Ti2V2Ni8 cuboctahedra; and faces with five Ni(7,7,7)Ti3VNi8 cuboctahedra. Both Ni(1)-Ni(5,5) bond lengths are 2.52 Å. Both Ni(1)-Ni(7,7) bond lengths are 2.52 Å. In the sixth Ni site, Ni(3) is bonded to two equivalent Ti(2); two equivalent V(3); four equivalent Ni(3); and four Ni(5,5) atoms to form distorted NiTi2V2Ni8 cuboctahedra that share corners with six equivalent Ni(1)Ti2V2Ni8 cuboctahedra; corners with six equivalent Ni(3)Ti2V2Ni8 cuboctahedra; edges with two equivalent V(1)Ni12 cuboctahedra; edges with two equivalent V(3)Ni12 cuboctahedra; edges with four equivalent Ti(2)Ni12 cuboctahedra; edges with four Ni(1,1)Ti2V2Ni8 cuboctahedra; edges with four equivalent Ni(3)Ti2V2Ni8 cuboctahedra; edges with eight Ni(5,5)Ti2V2Ni8 cuboctahedra; faces with two equivalent Ti(2)Ni12 cuboctahedra; faces with two equivalent V(3)Ni12 cuboctahedra; faces with four equivalent Ni(3)Ti2V2Ni8 cuboctahedra; and faces with ten Ni(5,5)Ti2V2Ni8 cuboctahedra. There are two shorter (2.47 Å) and two longer (2.58 Å) Ni(3)-Ni(3) bond lengths. All Ni(3)-Ni(5,5) bond lengths are 2.53 Å. In the seventh Ni site, Ni(4) is bonded to one Ti(3); one Ti(4); two equivalent Ti(1); two equivalent Ni(6); two Ni(7,7); and four Ni(4,4) atoms to form distorted NiTi4Ni8 cuboctahedra that share corners with three equivalent Ni(1)Ti2V2Ni8 cuboctahedra; corners with three equivalent Ni(2)Ti2V2Ni8 cuboctahedra; corners with six equivalent Ni(4)Ti4Ni8 cuboctahedra;  an edgeedge with one V(1)Ni12 cuboctahedra;  an edgeedge with one V(2)Ni12 cuboctahedra; edges with two equivalent Ti(1)Ni12 cuboctahedra; edges with two equivalent Ti(3)Ni12 cuboctahedra; edges with two equivalent Ti(4)Ni12 cuboctahedra; edges with two Ni(1,1)Ti2V2Ni8 cuboctahedra; edges with two equivalent Ni(2)Ti2V2Ni8 cuboctahedra; edges with four equivalent Ni(6)Ti3VNi8 cuboctahedra; edges with four Ni(7,7)Ti3VNi8 cuboctahedra; edges with four Ni(4,4)Ti4Ni8 cuboctahedra;  a faceface with one Ti(3)Ni12 cuboctahedra;  a faceface with one Ti(4)Ni12 cuboctahedra; faces with two equivalent Ti(1)Ni12 cuboctahedra; faces with four Ni(4,4)Ti4Ni8 cuboctahedra; faces with five equivalent Ni(6)Ti3VNi8 cuboctahedra; and faces with five Ni(7,7,7)Ti3VNi8 cuboctahedra. Both Ni(4)-Ni(6) bond lengths are 2.53 Å. Both Ni(4)-Ni(7,7) bond lengths are 2.53 Å. There are two shorter (2.46 Å) and two longer (2.58 Å) Ni(4)-Ni(4,4) bond lengths. In the eighth Ni site, Ni(4) is bonded to one Ti(3); one Ti(4); two equivalent Ti(1); two equivalent Ni(6); two Ni(7,7); and four Ni(4,4) atoms to form distorted NiTi4Ni8 cuboctahedra that share corners with three equivalent Ni(1)Ti2V2Ni8 cuboctahedra; corners with three equivalent Ni(2)Ti2V2Ni8 cuboctahedra; corners with six equivalent Ni(4)Ti4Ni8 cuboctahedra;  an edgeedge with one V(1)Ni12 cuboctahedra;  an edgeedge with one V(2)Ni12 cuboctahedra; edges with two equivalent Ti(1)Ni12 cuboctahedra; edges with two equivalent Ti(3)Ni12 cuboctahedra; edges with two equivalent Ti(4)Ni12 cuboctahedra; edges with two Ni(1,1)Ti2V2Ni8 cuboctahedra; edges with two Ni(2,2)Ti2V2Ni8 cuboctahedra; edges with four equivalent Ni(6)Ti3VNi8 cuboctahedra; edges with four Ni(7,7)Ti3VNi8 cuboctahedra; edges with four Ni(4,4)Ti4Ni8 cuboctahedra;  a faceface with one Ti(3)Ni12 cuboctahedra;  a faceface with one Ti(4)Ni12 cuboctahedra; faces with two equivalent Ti(1)Ni12 cuboctahedra; faces with four Ni(4,4)Ti4Ni8 cuboctahedra; faces with five equivalent Ni(6)Ti3VNi8 cuboctahedra; and faces with five Ni(7,7,7)Ti3VNi8 cuboctahedra. The Ni(4)-Ti(4) bond length is 2.55 Å. Both Ni(4)-Ni(6) bond lengths are 2.53 Å. Both Ni(4)-Ni(7,7) bond lengths are 2.53 Å. There is one shorter (2.46 Å) and one longer (2.58 Å) Ni(4)-Ni(4) bond length. In the ninth Ni site, Ni(4) is bonded to one Ti(3); one Ti(4); two equivalent Ti(1); two equivalent Ni(6); two Ni(7,7); and four Ni(4,4) atoms to form distorted NiTi4Ni8 cuboctahedra that share corners with three equivalent Ni(1)Ti2V2Ni8 cuboctahedra; corners with three equivalent Ni(2)Ti2V2Ni8 cuboctahedra; corners with six equivalent Ni(4)Ti4Ni8 cuboctahedra;  an edgeedge with one V(1)Ni12 cuboctahedra;  an edgeedge with one V(2)Ni12 cuboctahedra; edges with two equivalent Ti(1)Ni12 cuboctahedra; edges with two equivalent Ti(3)Ni12 cuboctahedra; edges with two equivalent Ti(4)Ni12 cuboctahedra; edges with two Ni(1,1)Ti2V2Ni8 cuboctahedra; edges with two Ni(2,2)Ti2V2Ni8 cuboctahedra; edges with four equivalent Ni(6)Ti3VNi8 cuboctahedra; edges with four Ni(7,7)Ti3VNi8 cuboctahedra; edges with four Ni(4,4)Ti4Ni8 cuboctahedra;  a faceface with one Ti(3)Ni12 cuboctahedra;  a faceface with one Ti(4)Ni12 cuboctahedra; faces with two equivalent Ti(1)Ni12 cuboctahedra; faces with four Ni(4,4)Ti4Ni8 cuboctahedra; faces with five equivalent Ni(6)Ti3VNi8 cuboctahedra; and faces with five Ni(7,7,7)Ti3VNi8 cuboctahedra. The Ni(4)-Ti(3) bond length is 2.55 Å. Both Ni(4)-Ti(1) bond lengths are 2.52 Å. Both Ni(4)-Ni(6) bond lengths are 2.53 Å. Both Ni(4)-Ni(7,7) bond lengths are 2.53 Å. There are two shorter (2.46 Å) and two longer (2.58 Å) Ni(4)-Ni(4,4) bond lengths. In the tenth Ni site, Ni(4) is bonded to one Ti(3); one Ti(4); two equivalent Ti(1); two equivalent Ni(6); two Ni(7,7); and four Ni(4,4) atoms to form distorted NiTi4Ni8 cuboctahedra that share corners with three equivalent Ni(1)Ti2V2Ni8 cuboctahedra; corners with three equivalent Ni(2)Ti2V2Ni8 cuboctahedra; corners with six equivalent Ni(4)Ti4Ni8 cuboctahedra;  an edgeedge with one V(1)Ni12 cuboctahedra;  an edgeedge with one V(2)Ni12 cuboctahedra; edges with two equivalent Ti(1)Ni12 cuboctahedra; edges with two equivalent Ti(3)Ni12 cuboctahedra; edges with two equivalent Ti(4)Ni12 cuboctahedra; edges with two Ni(1,1)Ti2V2Ni8 cuboctahedra; edges with two Ni(2,2)Ti2V2Ni8 cuboctahedra; edges with four equivalent Ni(6)Ti3VNi8 cuboctahedra; edges with four Ni(7,7)Ti3VNi8 cuboctahedra; edges with four Ni(4,4)Ti4Ni8 cuboctahedra;  a faceface with one Ti(3)Ni12 cuboctahedra;  a faceface with one Ti(4)Ni12 cuboctahedra; faces with two equivalent Ti(1)Ni12 cuboctahedra; faces with four Ni(4,4)Ti4Ni8 cuboctahedra; faces with five equivalent Ni(6)Ti3VNi8 cuboctahedra; and faces with five Ni(7,7,7)Ti3VNi8 cuboctahedra. Both Ni(4)-Ni(6) bond lengths are 2.53 Å. Both Ni(4)-Ni(7,7) bond lengths are 2.53 Å. In the eleventh Ni site, Ni(5) is bonded to two equivalent Ti(2); one V(1); one V(3); two Ni(1,1); two equivalent Ni(3); and four Ni(5,5) atoms to form distorted NiTi2V2Ni8 cuboctahedra that share corners with two equivalent Ti(2)Ni12 cuboctahedra; corners with two equivalent Ti(4)Ni12 cuboctahedra; corners with four Ni(7,7)Ti3VNi8 cuboctahedra; corners with ten Ni(5,5)Ti2V2Ni8 cuboctahedra; edges with two equivalent Ti(2)Ni12 cuboctahedra; edges with two equivalent V(1)Ni12 cuboctahedra; edges with two equivalent V(3)Ni12 cuboctahedra; edges with four Ni(1,1)Ti2V2Ni8 cuboctahedra; edges with four equivalent Ni(3)Ti2V2Ni8 cuboctahedra; edges with four Ni(5,5)Ti2V2Ni8 cuboctahedra;  a faceface with one V(1)Ni12 cuboctahedra;  a faceface with one V(3)Ni12 cuboctahedra;  a faceface with one Ni(7)Ti3VNi8 cuboctahedra; faces with two equivalent Ti(2)Ni12 cuboctahedra; faces with five Ni(1,1,1)Ti2V2Ni8 cuboctahedra; faces with five equivalent Ni(3)Ti2V2Ni8 cuboctahedra; and faces with five Ni(5,5)Ti2V2Ni8 cuboctahedra. There are two shorter (2.52 Å) and two longer (2.53 Å) Ni(5)-Ni(5,5) bond lengths. In the twelfth Ni site, Ni(6) is bonded to one Ti(1); two equivalent Ti(3); one V(2); two Ni(2,2); two Ni(4,4); and four equivalent Ni(6) atoms to form distorted NiTi3VNi8 cuboctahedra that share corners with two equivalent Ti(3)Ni12 cuboctahedra; corners with two equivalent Ti(4)Ni12 cuboctahedra; corners with four Ni(7,7)Ti3VNi8 cuboctahedra; corners with ten equivalent Ni(6)Ti3VNi8 cuboctahedra; edges with two equivalent Ti(1)Ni12 cuboctahedra; edges with two equivalent Ti(3)Ni12 cuboctahedra; edges with two equivalent V(2)Ni12 cuboctahedra; edges with four Ni(2,2)Ti2V2Ni8 cuboctahedra; edges with four equivalent Ni(6)Ti3VNi8 cuboctahedra; edges with four Ni(4,4)Ti4Ni8 cuboctahedra;  a faceface with one Ti(1)Ni12 cuboctahedra;  a faceface with one V(2)Ni12 cuboctahedra;  a faceface with one Ni(7)Ti3VNi8 cuboctahedra; faces with two equivalent Ti(3)Ni12 cuboctahedra; faces with five Ni(2,2)Ti2V2Ni8 cuboctahedra; faces with five equivalent Ni(6)Ti3VNi8 cuboctahedra; and faces with five Ni(4,4,4)Ti4Ni8 cuboctahedra. There are two shorter (2.51 Å) and two longer (2.54 Å) Ni(6)-Ni(6) bond lengths. In the thirteenth Ni site, Ni(7) is bonded to one Ti(1); two equivalent Ti(4); one V(1); two Ni(1,1); two Ni(4,4); and four Ni(7,7) atoms to form distorted NiTi3VNi8 cuboctahedra that share corners with two equivalent Ti(2)Ni12 cuboctahedra; corners with two equivalent Ti(3)Ni12 cuboctahedra; corners with four Ni(5,5)Ti2V2Ni8 cuboctahedra; corners with four equivalent Ni(6)Ti3VNi8 cuboctahedra; corners with six equivalent Ni(7)Ti3VNi8 cuboctahedra; edges with two equivalent Ti(1)Ni12 cuboctahedra; edges with two equivalent Ti(4)Ni12 cuboctahedra; edges with two equivalent V(1)Ni12 cuboctahedra; edges with four Ni(1,1)Ti2V2Ni8 cuboctahedra; edges with four Ni(7,7)Ti3VNi8 cuboctahedra; edges with four Ni(4,4)Ti4Ni8 cuboctahedra;  a faceface with one Ti(1)Ni12 cuboctahedra;  a faceface with one V(1)Ni12 cuboctahedra;  a faceface with one Ni(5)Ti2V2Ni8 cuboctahedra;  a faceface with one Ni(6)Ti3VNi8 cuboctahedra; faces with two equivalent Ti(4)Ni12 cuboctahedra; faces with four Ni(7,7)Ti3VNi8 cuboctahedra; faces with five Ni(1,1,1)Ti2V2Ni8 cuboctahedra; and faces with five Ni(4,4,4)Ti4Ni8 cuboctahedra. There are two shorter (2.51 Å) and two longer (2.54 Å) Ni(7)-Ni(7,7) bond lengths. In the fourteenth Ni site, Ni(7) is bonded to one Ti(1); two equivalent Ti(4); one V(1); two Ni(1,1); two Ni(4,4); and four Ni(7,7) atoms to form distorted NiTi3VNi8 cuboctahedra that share corners with two equivalent Ti(2)Ni12 cuboctahedra; corners with two equivalent Ti(3)Ni12 cuboctahedra; corners with four Ni(5,5)Ti2V2Ni8 cuboctahedra; corners with four equivalent Ni(6)Ti3VNi8 cuboctahedra; corners with six equivalent Ni(7)Ti3VNi8 cuboctahedra; edges with two equivalent Ti(1)Ni12 cuboctahedra; edges with two equivalent Ti(4)Ni12 cuboctahedra; edges with two equivalent V(1)Ni12 cuboctahedra; edges with four Ni(1,1)Ti2V2Ni8 cuboctahedra; edges with four Ni(7,7)Ti3VNi8 cuboctahedra; edges with four Ni(4,4)Ti4Ni8 cuboctahedra;  a faceface with one Ti(1)Ni12 cuboctahedra;  a faceface with one V(1)Ni12 cuboctahedra;  a faceface with one Ni(5)Ti2V2Ni8 cuboctahedra;  a faceface with one Ni(6)Ti3VNi8 cuboctahedra; faces with two equivalent Ti(4)Ni12 cuboctahedra; faces with four Ni(7,7)Ti3VNi8 cuboctahedra; faces with five Ni(1,1,1)Ti2V2Ni8 cuboctahedra; and faces with five Ni(4,4,4)Ti4Ni8 cuboctahedra. There is one shorter (2.51 Å) and one longer (2.54 Å) Ni(7)-Ni(7) bond length. In the fifteenth Ni site, Ni(5) is bonded to two equivalent Ti(2); one V(1); one V(3); two Ni(1,1); two equivalent Ni(3); and four equivalent Ni(5) atoms to form distorted NiTi2V2Ni8 cuboctahedra that share corners with two equivalent Ti(2)Ni12 cuboctahedra; corners with two equivalent Ti(4)Ni12 cuboctahedra; corners with four Ni(7,7)Ti3VNi8 cuboctahedra; corners with ten Ni(5,5)Ti2V2Ni8 cuboctahedra; edges with two equivalent Ti(2)Ni12 cuboctahedra; edges with two equivalent V(1)Ni12 cuboctahedra; edges with two equivalent V(3)Ni12 cuboctahedra; edges with four Ni(1,1)Ti2V2Ni8 cuboctahedra; edges with four equivalent Ni(3)Ti2V2Ni8 cuboctahedra; edges with four equivalent Ni(5)Ti2V2Ni8 cuboctahedra;  a faceface with one V(1)Ni12 cuboctahedra;  a faceface with one V(3)Ni12 cuboctahedra;  a faceface with one Ni(7)Ti3VNi8 cuboctahedra; faces with two equivalent Ti(2)Ni12 cuboctahedra; faces with five Ni(1,1,1)Ti2V2Ni8 cuboctahedra; faces with five equivalent Ni(3)Ti2V2Ni8 cuboctahedra; and faces with five Ni(5,5)Ti2V2Ni8 cuboctahedra. In the sixteenth Ni site, Ni(7) is bonded to one Ti(1); two equivalent Ti(4); one V(1); two Ni(1,1); two Ni(4,4); and four Ni(7,7) atoms to form distorted NiTi3VNi8 cuboctahedra that share corners with two equivalent Ti(2)Ni12 cuboctahedra; corners with two equivalent Ti(3)Ni12 cuboctahedra; corners with four equivalent Ni(5)Ti2V2Ni8 cuboctahedra; corners with four equivalent Ni(6)Ti3VNi8 cuboctahedra; corners with six equivalent Ni(7)Ti3VNi8 cuboctahedra; edges with two equivalent Ti(1)Ni12 cuboctahedra; edges with two equivalent Ti(4)Ni12 cuboctahedra; edges with two equivalent V(1)Ni12 cuboctahedra; edges with four Ni(1,1)Ti2V2Ni8 cuboctahedra; edges with four Ni(7,7)Ti3VNi8 cuboctahedra; edges with four Ni(4,4)Ti4Ni8 cuboctahedra;  a faceface with one Ti(1)Ni12 cuboctahedra;  a faceface with one V(1)Ni12 cuboctahedra;  a faceface with one Ni(5)Ti2V2Ni8 cuboctahedra;  a faceface with one Ni(6)Ti3VNi8 cuboctahedra; faces with two equivalent Ti(4)Ni12 cuboctahedra; faces with four Ni(7,7)Ti3VNi8 cuboctahedra; faces with five Ni(1,1,1)Ti2V2Ni8 cuboctahedra; and faces with five Ni(4,4,4)Ti4Ni8 cuboctahedra.