Ni3In7 crystallizes in the cubic Im-3m space group. Ni(1) is bonded in a 9-coordinate geometry to one Ni(1), four equivalent In(1), and four equivalent In(2) atoms. There are two inequivalent In sites. In the first In site, In(1) is bonded in a 4-coordinate geometry to four equivalent Ni(1) atoms. In the second In site, In(2) is bonded in a 7-coordinate geometry to three equivalent Ni(1) and four equivalent In(2) atoms.
Ni3In7 crystallizes in the cubic Im-3m space group. Ni(1) is bonded in a 9-coordinate geometry to one Ni(1), four equivalent In(1), and four equivalent In(2) atoms. The Ni(1)-Ni(1) bond length is 2.66 Å. All Ni(1)-In(1) bond lengths are 2.65 Å. All Ni(1)-In(2) bond lengths are 2.75 Å. There are two inequivalent In sites. In the first In site, In(1) is bonded in a 4-coordinate geometry to four equivalent Ni(1) atoms. In the second In site, In(2) is bonded in a 7-coordinate geometry to three equivalent Ni(1) and four equivalent In(2) atoms. There is one shorter (2.85 Å) and three longer (2.95 Å) In(2)-In(2) bond lengths.