Materials Data on Bi4RuBr2 by Materials Project
RuBi4Br2 crystallizes in the monoclinic C2/m space group. The structure is one-dimensional and consists of two RuBi4Br2 ribbons oriented in the (0, 1, 0) direction. Ru is bonded in a 8-coordinate geometry to one Ru and eight Bi atoms. The Ru–Ru bond length is 2.88 Å. There are a spread of Ru–Bi bond distances ranging from 2.79–2.94 Å. There are four inequivalent Bi sites. In the first Bi site, Bi is bonded in a 2-coordinate geometry to two equivalent Ru and two equivalent Bi atoms. Both Bi–Bi bond lengths are 3.04 Å. In the second Bi site, Bi is bonded in a 2-coordinate geometry to two equivalent Ru and two equivalent Bi atoms. In the third Bi site, Bi is bonded in a 4-coordinate geometry to two equivalent Ru and two Br atoms. There are one shorter (3.01 Å) and one longer (3.03 Å) Bi–Br bond lengths. In the fourth Bi site, Bi is bonded in a 4-coordinate geometry to two equivalent Ru and two Br atoms. There are one shorter (3.01 Å) and one longer (3.04 Å) Bi–Br bond lengths. There are two inequivalent Br sites. In the first Br site, Br is bonded in a 2-coordinate geometry to two Bi atoms. In the second Br site, Br is bonded in a 2-coordinate geometry to two Bi atoms.