Materials Data on La3AgSnSe7 by Materials Project
La3AgSnSe7 crystallizes in the hexagonal P6_3 space group. The structure is three-dimensional. La3+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of La–Se bond distances ranging from 3.06–3.42 Å. Ag1+ is bonded in a trigonal planar geometry to three equivalent Se2- atoms. All Ag–Se bond lengths are 2.59 Å. Sn4+ is bonded in a tetrahedral geometry to four Se2- atoms. There are one shorter (2.52 Å) and three longer (2.58 Å) Sn–Se bond lengths. There are three inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a tetrahedral geometry to three equivalent La3+ and one Sn4+ atom. In the second Se2- site, Se2- is bonded in a 5-coordinate geometry to four equivalent La3+ and one Ag1+ atom. In the third Se2- site, Se2- is bonded in a distorted rectangular see-saw-like geometry to three equivalent La3+ and one Sn4+ 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:
- 1192361
- Report Number(s):
- mp-17155
- Country of Publication:
- United States
- Language:
- English
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