SrNiSn2 crystallizes in the orthorhombic Cmcm space group. Sr(1) is bonded in a 14-coordinate geometry to four equivalent Ni(1), four equivalent Sn(2), and six equivalent Sn(1) atoms. Ni(1) is bonded in a 9-coordinate geometry to four equivalent Sr(1), one Sn(1), and four equivalent Sn(2) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to six equivalent Sr(1), one Ni(1), and two equivalent Sn(1) atoms. In the second Sn site, Sn(2) is bonded in a 8-coordinate geometry to four equivalent Sr(1) and four equivalent Ni(1) atoms.
SrNiSn2 crystallizes in the orthorhombic Cmcm space group. Sr(1) is bonded in a 14-coordinate geometry to four equivalent Ni(1), four equivalent Sn(2), and six equivalent Sn(1) atoms. All Sr(1)-Ni(1) bond lengths are 3.52 Å. There are two shorter (3.48 Å) and two longer (3.49 Å) Sr(1)-Sn(2) bond lengths. There are four shorter (3.44 Å) and two longer (3.71 Å) Sr(1)-Sn(1) bond lengths. Ni(1) is bonded in a 9-coordinate geometry to four equivalent Sr(1), one Sn(1), and four equivalent Sn(2) atoms. The Ni(1)-Sn(1) bond length is 2.52 Å. There are two shorter (2.59 Å) and two longer (2.63 Å) Ni(1)-Sn(2) bond lengths. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to six equivalent Sr(1), one Ni(1), and two equivalent Sn(1) atoms. Both Sn(1)-Sn(1) bond lengths are 2.87 Å. In the second Sn site, Sn(2) is bonded in a 8-coordinate geometry to four equivalent Sr(1) and four equivalent Ni(1) atoms.