Materials Data on Rb2Hg7 by Materials Project
Rb2Hg7 crystallizes in the trigonal P-3m1 space group. The structure is three-dimensional. Rb is bonded in a 12-coordinate geometry to twelve equivalent Hg atoms. There are nine shorter (3.84 Å) and three longer (3.97 Å) Rb–Hg bond lengths. There are two inequivalent Hg sites. In the first Hg site, Hg is bonded in a 6-coordinate geometry to six equivalent Hg atoms. All Hg–Hg bond lengths are 3.22 Å. In the second Hg site, Hg is bonded in a 9-coordinate geometry to four equivalent Rb and five Hg atoms. There are two shorter (3.16 Å) and two longer (3.33 Å) Hg–Hg bond lengths.
36 MATERIALS SCIENCE↗