Ba5In4Bi5 crystallizes in the tetragonal P4nc space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 9-coordinate geometry to four equivalent In(1), one Bi(1), and four equivalent Bi(2) atoms. In the second Ba site, Ba(2) is bonded in a 10-coordinate geometry to four equivalent In(1), one Bi(1), and five equivalent Bi(2) atoms. In(1) is bonded in a 10-coordinate geometry to one Ba(1), four equivalent Ba(2), two equivalent In(1), one Bi(1), and two equivalent Bi(2) atoms. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 9-coordinate geometry to one Ba(1), four equivalent Ba(2), and four equivalent In(1) atoms. In the second Bi site, Bi(2) is bonded in a 8-coordinate geometry to one Ba(1), five equivalent Ba(2), and two equivalent In(1) atoms.
Ba5In4Bi5 crystallizes in the tetragonal P4nc space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 9-coordinate geometry to four equivalent In(1), one Bi(1), and four equivalent Bi(2) atoms. All Ba(1)-In(1) bond lengths are 3.72 Å. The Ba(1)-Bi(1) bond length is 3.54 Å. All Ba(1)-Bi(2) bond lengths are 3.54 Å. In the second Ba site, Ba(2) is bonded in a 10-coordinate geometry to four equivalent In(1), one Bi(1), and five equivalent Bi(2) atoms. There are a spread of Ba(2)-In(1) bond distances ranging from 3.77-4.15 Å. The Ba(2)-Bi(1) bond length is 3.58 Å. There are a spread of Ba(2)-Bi(2) bond distances ranging from 3.70-4.25 Å. In(1) is bonded in a 10-coordinate geometry to one Ba(1), four equivalent Ba(2), two equivalent In(1), one Bi(1), and two equivalent Bi(2) atoms. Both In(1)-In(1) bond lengths are 3.02 Å. The In(1)-Bi(1) bond length is 3.35 Å. There is one shorter (2.96 Å) and one longer (3.40 Å) In(1)-Bi(2) bond length. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 9-coordinate geometry to one Ba(1), four equivalent Ba(2), and four equivalent In(1) atoms. In the second Bi site, Bi(2) is bonded in a 8-coordinate geometry to one Ba(1), five equivalent Ba(2), and two equivalent In(1) atoms.