Materials Data on Rb5(WO3)18 by Materials Project

Dataset · Thu Apr 30 04:00:00 EDT 2020

DOI:https://doi.org/10.17188/1292362· OSTI ID:1292362

Rb5(WO3)18 crystallizes in the trigonal P-31m space group. The structure is three-dimensional. there are three inequivalent Rb1+ sites. In the first Rb1+ site, Rb1+ is bonded to twelve equivalent O2- atoms to form RbO12 cuboctahedra that share edges with twelve equivalent WO6 octahedra and faces with two equivalent RbO12 cuboctahedra. All Rb–O bond lengths are 3.37 Å. In the second Rb1+ site, Rb1+ is bonded in a 12-coordinate geometry to twelve O2- atoms. There are six shorter (3.21 Å) and six longer (3.55 Å) Rb–O bond lengths. In the third Rb1+ site, Rb1+ is bonded to twelve O2- atoms to form RbO12 cuboctahedra that share edges with twelve WO6 octahedra and a faceface with one RbO12 cuboctahedra. There are six shorter (3.33 Å) and six longer (3.40 Å) Rb–O bond lengths. There are three inequivalent W+5.72+ sites. In the first W+5.72+ site, W+5.72+ is bonded to six O2- atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedra tilt angles range from 0–29°. There are a spread of W–O bond distances ranging from 1.93–1.97 Å. In the second W+5.72+ site, W+5.72+ is bonded to six O2- atoms to form WO6 octahedra that share corners with six WO6 octahedra and edges with four RbO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–30°. There is one shorter (1.94 Å) and five longer (1.95 Å) W–O bond length. In the third W+5.72+ site, W+5.72+ is bonded to six O2- atoms to form WO6 octahedra that share corners with six WO6 octahedra and edges with two equivalent RbO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–30°. There are a spread of W–O bond distances ranging from 1.92–1.96 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a linear geometry to two W+5.72+ atoms. In the second O2- site, O2- is bonded in a linear geometry to two equivalent W+5.72+ atoms. In the third O2- site, O2- is bonded in a linear geometry to two W+5.72+ atoms. In the fourth O2- site, O2- is bonded in a linear geometry to two equivalent W+5.72+ atoms. In the fifth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Rb1+ and two equivalent W+5.72+ atoms. In the sixth O2- site, O2- is bonded in a bent 150 degrees geometry to two Rb1+ and two equivalent W+5.72+ atoms. In the seventh O2- site, O2- is bonded in a bent 150 degrees geometry to two Rb1+ and two equivalent W+5.72+ atoms.

• Research Organization: LBNL Materials Project; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
• Contributing Organization: The Materials Project; MIT; UC Berkeley; Duke; U Louvain
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 1292362
• Report Number(s): mp-761961
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
O-Rb-W
Rb5(WO3)18
crystal structure