BaLa2Br8 crystallizes in the monoclinic P2/c space group. Ba(1) is bonded in a 8-coordinate geometry to two equivalent Br(1), two equivalent Br(2), two equivalent Br(3), and two equivalent Br(4) atoms. La(1) is bonded to one Br(1), one Br(2), two equivalent Br(3), and two equivalent Br(4) atoms to form distorted edge-sharing LaBr6 octahedra. There are four inequivalent Br sites. In the first Br site, Br(1) is bonded in a distorted bent 120 degrees geometry to one Ba(1) and one La(1) atom. In the second Br site, Br(2) is bonded in a water-like geometry to one Ba(1) and one La(1) atom. In the third Br site, Br(3) is bonded in a 3-coordinate geometry to one Ba(1) and two equivalent La(1) atoms. In the fourth Br site, Br(4) is bonded in a trigonal non-coplanar geometry to one Ba(1) and two equivalent La(1) atoms.
BaLa2Br8 crystallizes in the monoclinic P2/c space group. Ba(1) is bonded in a 8-coordinate geometry to two equivalent Br(1), two equivalent Br(2), two equivalent Br(3), and two equivalent Br(4) atoms. Both Ba(1)-Br(1) bond lengths are 3.30 Å. Both Ba(1)-Br(2) bond lengths are 3.25 Å. Both Ba(1)-Br(3) bond lengths are 3.48 Å. Both Ba(1)-Br(4) bond lengths are 3.51 Å. La(1) is bonded to one Br(1), one Br(2), two equivalent Br(3), and two equivalent Br(4) atoms to form distorted edge-sharing LaBr6 octahedra. The La(1)-Br(1) bond length is 2.81 Å. The La(1)-Br(2) bond length is 2.87 Å. There is one shorter (2.99 Å) and one longer (3.07 Å) La(1)-Br(3) bond length. Both La(1)-Br(4) bond lengths are 3.04 Å. There are four inequivalent Br sites. In the first Br site, Br(1) is bonded in a distorted bent 120 degrees geometry to one Ba(1) and one La(1) atom. In the second Br site, Br(2) is bonded in a water-like geometry to one Ba(1) and one La(1) atom. In the third Br site, Br(3) is bonded in a 3-coordinate geometry to one Ba(1) and two equivalent La(1) atoms. In the fourth Br site, Br(4) is bonded in a trigonal non-coplanar geometry to one Ba(1) and two equivalent La(1) atoms.