Materials Data on Sr2GeN2 by Materials Project
Sr2GeN2 crystallizes in the tetragonal P4_2/mbc space group. The structure is three-dimensional. there are two inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded to five N3- atoms to form a mixture of corner and edge-sharing SrN5 trigonal bipyramids. There are a spread of Sr–N bond distances ranging from 2.57–2.77 Å. In the second Sr2+ site, Sr2+ is bonded to five N3- atoms to form a mixture of corner and edge-sharing SrN5 square pyramids. There are a spread of Sr–N bond distances ranging from 2.57–2.83 Å. Ge2+ is bonded in a bent 120 degrees geometry to two N3- atoms. There is one shorter (1.88 Å) and one longer (1.90 Å) Ge–N bond length. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded to five Sr2+ and one Ge2+ atom to form a mixture of corner and edge-sharing NSr5Ge octahedra. The corner-sharing octahedra tilt angles range from 9–61°. In the second N3- site, N3- is bonded to five Sr2+ and one Ge2+ atom to form a mixture of distorted corner and edge-sharing NSr5Ge octahedra. The corner-sharing octahedra tilt angles range from 11–61°.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). LBNL Materials Project
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Contributing Organization:
- MIT; UC Berkeley; Duke; U Louvain
- DOE Contract Number:
- AC02-05CH11231; EDCBEE
- OSTI ID:
- 1203160
- Report Number(s):
- mp-29089
- Resource Relation:
- Related Information: https://materialsproject.org/citing
- Country of Publication:
- United States
- Language:
- English
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