BaIn crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 8-coordinate geometry to eight equivalent In(1) atoms. In the second Ba site, Ba(2) is bonded in a 6-coordinate geometry to eight equivalent In(1) atoms. In(1) is bonded in a 11-coordinate geometry to four equivalent Ba(1), four equivalent Ba(2), and three equivalent In(1) atoms.
BaIn crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 8-coordinate geometry to eight equivalent In(1) atoms. There are a spread of Ba(1)-In(1) bond distances ranging from 3.49-4.02 Å. In the second Ba site, Ba(2) is bonded in a 6-coordinate geometry to eight equivalent In(1) atoms. There are a spread of Ba(2)-In(1) bond distances ranging from 3.59-4.15 Å. In(1) is bonded in a 11-coordinate geometry to four equivalent Ba(1), four equivalent Ba(2), and three equivalent In(1) atoms. There is one shorter (3.29 Å) and two longer (3.41 Å) In(1)-In(1) bond lengths.