Materials Data on Ba3Ga3P5 by Materials Project
Ba3Ga3P5 crystallizes in the trigonal R-3c space group. The structure is three-dimensional. there are three inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded in a 7-coordinate geometry to seven P3- atoms. There are a spread of Ba–P bond distances ranging from 3.19–3.72 Å. In the second Ba2+ site, Ba2+ is bonded in a 6-coordinate geometry to six P3- atoms. There are three shorter (3.20 Å) and three longer (3.66 Å) Ba–P bond lengths. In the third Ba2+ site, Ba2+ is bonded to six equivalent P3- atoms to form distorted BaP6 octahedra that share corners with twelve equivalent GaP4 tetrahedra and edges with three equivalent GaP4 tetrahedra. All Ba–P bond lengths are 3.18 Å. There are two inequivalent Ga3+ sites. In the first Ga3+ site, Ga3+ is bonded to four P3- atoms to form GaP4 tetrahedra that share corners with two equivalent GaP4 tetrahedra, an edgeedge with one BaP6 octahedra, and edges with two equivalent GaP4 tetrahedra. There are two shorter (2.41 Å) and two longer (2.48 Å) Ga–P bond lengths. In the second Ga3+ site, Ga3+ is bonded to four P3- atoms to form GaP4 tetrahedra that share corners with two equivalent BaP6 octahedra, corners with two GaP4 tetrahedra, and edges with two GaP4 tetrahedra. The corner-sharing octahedra tilt angles range from 25–65°. There are a spread of Ga–P bond distances ranging from 2.35–2.54 Å. There are three inequivalent P3- sites. In the first P3- site, P3- is bonded in a 6-coordinate geometry to four equivalent Ba2+ and two equivalent Ga3+ atoms. In the second P3- site, P3- is bonded in a 7-coordinate geometry to four Ba2+ and three Ga3+ atoms. In the third P3- site, P3- is bonded to four Ba2+ and two Ga3+ atoms to form a mixture of distorted corner and face-sharing PBa4Ga2 pentagonal pyramids.
- 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:
- 1662984
- Report Number(s):
- mp-1196108
- Country of Publication:
- United States
- Language:
- English
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