Ni3(PtSn2)2 crystallizes in the trigonal P3m1 space group. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 11-coordinate geometry to one Ni(2), one Ni(3), three equivalent Ni(1), three equivalent Sn(2), and three equivalent Sn(3) atoms. In the second Pt site, Pt(2) is bonded in a body-centered cubic geometry to one Ni(2), one Ni(3), three equivalent Sn(1), and three equivalent Sn(4) atoms. There are three inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 11-coordinate geometry to three equivalent Pt(1), three equivalent Ni(2), one Sn(1), one Sn(2), and three equivalent Sn(3) atoms. In the second Ni site, Ni(2) is bonded in a 11-coordinate geometry to one Pt(1), one Pt(2), three equivalent Ni(1), three equivalent Sn(1), and three equivalent Sn(3) atoms. In the third Ni site, Ni(3) is bonded in a body-centered cubic geometry to one Pt(1), one Pt(2), three equivalent Sn(2), and three equivalent Sn(4) atoms. There are four inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 7-coordinate geometry to three equivalent Pt(2), one Ni(1), and three equivalent Ni(2) atoms. In the second Sn site, Sn(2) is bonded in a 7-coordinate geometry to three equivalent Pt(1), one Ni(1), and three equivalent Ni(3) atoms. In the third Sn site, Sn(3) is bonded in a 9-coordinate geometry to three equivalent Pt(1), three equivalent Ni(1), and three equivalent Ni(2) atoms. In the fourth Sn site, Sn(4) is bonded in a 6-coordinate geometry to three equivalent Pt(2) and three equivalent Ni(3) atoms.
Ni3(PtSn2)2 crystallizes in the trigonal P3m1 space group. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 11-coordinate geometry to one Ni(2), one Ni(3), three equivalent Ni(1), three equivalent Sn(2), and three equivalent Sn(3) atoms. The Pt(1)-Ni(2) bond length is 2.70 Å. The Pt(1)-Ni(3) bond length is 2.62 Å. All Pt(1)-Ni(1) bond lengths are 2.83 Å. All Pt(1)-Sn(2) bond lengths are 2.80 Å. All Pt(1)-Sn(3) bond lengths are 2.86 Å. In the second Pt site, Pt(2) is bonded in a body-centered cubic geometry to one Ni(2), one Ni(3), three equivalent Sn(1), and three equivalent Sn(4) atoms. The Pt(2)-Ni(2) bond length is 2.68 Å. The Pt(2)-Ni(3) bond length is 2.62 Å. All Pt(2)-Sn(1) bond lengths are 2.77 Å. All Pt(2)-Sn(4) bond lengths are 2.80 Å. There are three inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 11-coordinate geometry to three equivalent Pt(1), three equivalent Ni(2), one Sn(1), one Sn(2), and three equivalent Sn(3) atoms. All Ni(1)-Ni(2) bond lengths are 2.74 Å. The Ni(1)-Sn(1) bond length is 2.62 Å. The Ni(1)-Sn(2) bond length is 2.82 Å. All Ni(1)-Sn(3) bond lengths are 2.43 Å. In the second Ni site, Ni(2) is bonded in a 11-coordinate geometry to one Pt(1), one Pt(2), three equivalent Ni(1), three equivalent Sn(1), and three equivalent Sn(3) atoms. All Ni(2)-Sn(1) bond lengths are 2.79 Å. All Ni(2)-Sn(3) bond lengths are 2.71 Å. In the third Ni site, Ni(3) is bonded in a body-centered cubic geometry to one Pt(1), one Pt(2), three equivalent Sn(2), and three equivalent Sn(4) atoms. All Ni(3)-Sn(2) bond lengths are 2.73 Å. All Ni(3)-Sn(4) bond lengths are 2.72 Å. There are four inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 7-coordinate geometry to three equivalent Pt(2), one Ni(1), and three equivalent Ni(2) atoms. In the second Sn site, Sn(2) is bonded in a 7-coordinate geometry to three equivalent Pt(1), one Ni(1), and three equivalent Ni(3) atoms. In the third Sn site, Sn(3) is bonded in a 9-coordinate geometry to three equivalent Pt(1), three equivalent Ni(1), and three equivalent Ni(2) atoms. In the fourth Sn site, Sn(4) is bonded in a 6-coordinate geometry to three equivalent Pt(2) and three equivalent Ni(3) atoms.