Materials Data on CaMg by Materials Project
MgCa crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are three inequivalent Ca sites. In the first Ca site, Ca is bonded to seven Ca and five Mg atoms to form a mixture of distorted corner, edge, and face-sharing CaCa7Mg5 cuboctahedra. There are a spread of Ca–Ca bond distances ranging from 3.61–3.78 Å. There are a spread of Ca–Mg bond distances ranging from 3.40–3.77 Å. In the second Ca site, Ca is bonded to seven Ca and five Mg atoms to form a mixture of distorted corner, edge, and face-sharing CaCa7Mg5 cuboctahedra. There are two shorter (3.61 Å) and two longer (3.76 Å) Ca–Ca bond lengths. There are a spread of Ca–Mg bond distances ranging from 3.45–3.61 Å. In the third Ca site, Ca is bonded in a 12-coordinate geometry to six Ca and six Mg atoms. Both Ca–Ca bond lengths are 3.61 Å. There are a spread of Ca–Mg bond distances ranging from 3.26–3.70 Å. There are three inequivalent Mg sites. In the first Mg site, Mg is bonded in a 5-coordinate geometry to five Ca and two equivalent Mg atoms. Both Mg–Mg bond lengths are 3.44 Å. In the second Mg site, Mg is bonded in a 12-coordinate geometry to six Ca and four Mg atoms. Both Mg–Mg bond lengths are 3.44 Å. In the third Mg site, Mg is bonded in a 7-coordinate geometry to five Ca and two equivalent Mg atoms.
- 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:
- 1740112
- Report Number(s):
- mp-1039552
- Resource Relation:
- Related Information: https://materialsproject.org/citing
- Country of Publication:
- United States
- Language:
- English
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Materials Data on CaMg by Materials Project
Materials Data on CaMg by Materials Project