EuNiIn2 crystallizes in the orthorhombic Cmcm space group. Eu(1) is bonded in a 13-coordinate geometry to three equivalent Ni(1) and ten equivalent In(1) atoms. Ni(1) is bonded in a 9-coordinate geometry to three equivalent Eu(1) and six equivalent In(1) atoms. In(1) is bonded in a 12-coordinate geometry to five equivalent Eu(1), three equivalent Ni(1), and four equivalent In(1) atoms.
EuNiIn2 crystallizes in the orthorhombic Cmcm space group. Eu(1) is bonded in a 13-coordinate geometry to three equivalent Ni(1) and ten equivalent In(1) atoms. There is one shorter (2.97 Å) and two longer (3.24 Å) Eu(1)-Ni(1) bond lengths. There are a spread of Eu(1)-In(1) bond distances ranging from 3.34-3.49 Å. Ni(1) is bonded in a 9-coordinate geometry to three equivalent Eu(1) and six equivalent In(1) atoms. There are two shorter (2.67 Å) and four longer (2.73 Å) Ni(1)-In(1) bond lengths. In(1) is bonded in a 12-coordinate geometry to five equivalent Eu(1), three equivalent Ni(1), and four equivalent In(1) atoms. There are a spread of In(1)-In(1) bond distances ranging from 2.99-3.42 Å.