Materials Data on Hf3(Bi5Cl9)2 by Materials Project
Hf3BiCl18(Bi)9 crystallizes in the hexagonal P6_3 space group. The structure is zero-dimensional and consists of two Bi clusters and two Hf3BiCl18 clusters. In each Bi cluster, there are three inequivalent Bi sites. In the first Bi site, Bi is bonded in a 4-coordinate geometry to four Bi atoms. There are a spread of Bi–Bi bond distances ranging from 3.12–3.24 Å. In the second Bi site, Bi is bonded in a 4-coordinate geometry to four Bi atoms. There are one shorter (3.13 Å) and one longer (3.18 Å) Bi–Bi bond lengths. In the third Bi site, Bi is bonded in a 6-coordinate geometry to two equivalent Bi atoms. In each Hf3BiCl18 cluster, Hf is bonded in an octahedral geometry to six Cl atoms. There are a spread of Hf–Cl bond distances ranging from 2.38–2.56 Å. Bi is bonded in a trigonal planar geometry to three equivalent Cl atoms. All Bi–Cl bond lengths are 2.75 Å. There are six inequivalent Cl sites. In the first Cl site, Cl is bonded in a single-bond geometry to one Hf atom. In the second Cl site, Cl is bonded in a single-bond geometry to one Hf atom. In the third Cl site, Cl is bonded in a bent 120 degrees geometry to one Hf and one Bi atom. In the fourth Cl site, Cl is bonded in a single-bond geometry to one Hf atom. In the fifth Cl site, Cl is bonded in a single-bond geometry to one Hf atom. In the sixth Cl site, Cl is bonded in a single-bond geometry to one Hf atom.