Materials Data on CsMg6Si by Materials Project

Dataset · Tue May 05 04:00:00 EDT 2020

DOI:https://doi.org/10.17188/1653772· OSTI ID:1653772

CsMg6Si crystallizes in the monoclinic Cm space group. The structure is three-dimensional. Cs is bonded in a 12-coordinate geometry to six Mg and two equivalent Si atoms. There are a spread of Cs–Mg bond distances ranging from 4.07–4.10 Å. Both Cs–Si bond lengths are 4.07 Å. There are four inequivalent Mg sites. In the first Mg site, Mg is bonded in a distorted single-bond geometry to four Mg and one Si atom. There are two shorter (3.01 Å) and two longer (3.03 Å) Mg–Mg bond lengths. The Mg–Si bond length is 2.73 Å. In the second Mg site, Mg is bonded in a distorted bent 120 degrees geometry to two equivalent Cs, two Mg, and two equivalent Si atoms. Both Mg–Mg bond lengths are 3.32 Å. There are one shorter (2.86 Å) and one longer (2.87 Å) Mg–Si bond lengths. In the third Mg site, Mg is bonded in a 8-coordinate geometry to eight Mg atoms. Both Mg–Mg bond lengths are 3.09 Å. In the fourth Mg site, Mg is bonded in a 10-coordinate geometry to two equivalent Cs and eight Mg atoms. Si is bonded in a 8-coordinate geometry to two equivalent Cs and six Mg 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: 1653772
• Report Number(s): mp-1021157
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
Cs-Mg-Si
CsMg6Si
crystal structure