Materials Data on Pr3SiAgSe7 by Materials Project
Pr3AgSiSe7 crystallizes in the hexagonal P6_3 space group. The structure is three-dimensional. Pr3+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of Pr–Se bond distances ranging from 3.03–3.25 Å. Ag1+ is bonded in a trigonal planar geometry to three equivalent Se2- atoms. All Ag–Se bond lengths are 2.58 Å. Si4+ is bonded in a tetrahedral geometry to four Se2- atoms. There are one shorter (2.27 Å) and three longer (2.31 Å) Si–Se bond lengths. There are three inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 4-coordinate geometry to three equivalent Pr3+ and one Si4+ atom. In the second Se2- site, Se2- is bonded in a 5-coordinate geometry to four equivalent Pr3+ and one Ag1+ atom. In the third Se2- site, Se2- is bonded in a distorted tetrahedral geometry to three equivalent Pr3+ and one Si4+ 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:
- 1192480
- Report Number(s):
- mp-17389
- Country of Publication:
- United States
- Language:
- English
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