Materials Data on CsMgFeF6 by Materials Project

Dataset · Sat May 09 04:00:00 EDT 2020

DOI:https://doi.org/10.17188/1665584· OSTI ID:1665584

CsMgFeF6 crystallizes in the orthorhombic Imma space group. The structure is three-dimensional. Cs1+ is bonded to six F1- atoms to form CsF6 octahedra that share corners with six equivalent MgF6 octahedra and corners with six equivalent FeF6 octahedra. The corner-sharing octahedra tilt angles range from 69–70°. There are a spread of Cs–F bond distances ranging from 3.21–3.28 Å. Mg2+ is bonded to six F1- atoms to form MgF6 octahedra that share corners with two equivalent MgF6 octahedra, corners with four equivalent FeF6 octahedra, and corners with six equivalent CsF6 octahedra. The corner-sharing octahedra tilt angles range from 41–70°. There are two shorter (1.97 Å) and four longer (2.03 Å) Mg–F bond lengths. Fe3+ is bonded to six F1- atoms to form FeF6 octahedra that share corners with two equivalent FeF6 octahedra, corners with four equivalent MgF6 octahedra, and corners with six equivalent CsF6 octahedra. The corner-sharing octahedra tilt angles range from 41–69°. There is four shorter (1.94 Å) and two longer (2.00 Å) Fe–F bond length. There are three inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted bent 150 degrees geometry to one Cs1+ and two equivalent Fe3+ atoms. In the second F1- site, F1- is bonded in a distorted bent 150 degrees geometry to one Cs1+ and two equivalent Mg2+ atoms. In the third F1- site, F1- is bonded in a distorted bent 150 degrees geometry to one Cs1+, one Mg2+, and one Fe3+ atom.

• 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: 1665584
• Report Number(s): mp-1225928
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
Cs-F-Fe-Mg
CsMgFeF6
crystal structure