Er2Ni2In crystallizes in the tetragonal P4/mbm space group. Er(1) is bonded in a 10-coordinate geometry to six equivalent Ni(1) and four equivalent In(1) atoms. Ni(1) is bonded in a 9-coordinate geometry to six equivalent Er(1), one Ni(1), and two equivalent In(1) atoms. In(1) is bonded to eight equivalent Er(1) and four equivalent Ni(1) atoms to form a mixture of corner and face-sharing InEr8Ni4 cuboctahedra.
Er2Ni2In crystallizes in the tetragonal P4/mbm space group. Er(1) is bonded in a 10-coordinate geometry to six equivalent Ni(1) and four equivalent In(1) atoms. There are two shorter (2.76 Å) and four longer (2.79 Å) Er(1)-Ni(1) bond lengths. All Er(1)-In(1) bond lengths are 3.21 Å. Ni(1) is bonded in a 9-coordinate geometry to six equivalent Er(1), one Ni(1), and two equivalent In(1) atoms. The Ni(1)-Ni(1) bond length is 2.47 Å. Both Ni(1)-In(1) bond lengths are 2.92 Å. In(1) is bonded to eight equivalent Er(1) and four equivalent Ni(1) atoms to form a mixture of corner and face-sharing InEr8Ni4 cuboctahedra.