Materials Data on Rb2Hg2PdBr8 by Materials Project
Rb2PdHg2Br8 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Rb1+ is bonded in a 10-coordinate geometry to ten Br1- atoms. There are a spread of Rb–Br bond distances ranging from 3.59–4.00 Å. Pd2+ is bonded in a square co-planar geometry to four equivalent Br1- atoms. All Pd–Br bond lengths are 2.48 Å. Hg2+ is bonded in a 2-coordinate geometry to five Br1- atoms. There are a spread of Hg–Br bond distances ranging from 2.49–3.50 Å. There are three inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a distorted single-bond geometry to two equivalent Rb1+ and one Hg2+ atom. In the second Br1- site, Br1- is bonded to three equivalent Rb1+, one Pd2+, and one Hg2+ atom to form a mixture of distorted corner, edge, and face-sharing BrRb3HgPd square pyramids. In the third Br1- site, Br1- is bonded in a distorted single-bond geometry to two equivalent Rb1+ and two equivalent Hg2+ atoms.