Materials Data on Eu5As4 by Materials Project
Eu5As4 crystallizes in the orthorhombic Cmce space group. The structure is three-dimensional. there are two inequivalent Eu+2.40+ sites. In the first Eu+2.40+ site, Eu+2.40+ is bonded to six As3- atoms to form a mixture of distorted edge, face, and corner-sharing EuAs6 pentagonal pyramids. The corner-sharing octahedra tilt angles range from 38–43°. There are a spread of Eu–As bond distances ranging from 3.09–3.23 Å. In the second Eu+2.40+ site, Eu+2.40+ is bonded to six As3- atoms to form a mixture of face and corner-sharing EuAs6 octahedra. The corner-sharing octahedral tilt angles are 53°. There are a spread of Eu–As bond distances ranging from 3.08–3.18 Å. There are two inequivalent As3- sites. In the first As3- site, As3- is bonded to seven Eu+2.40+ atoms to form a mixture of distorted edge and corner-sharing AsEu7 pentagonal bipyramids. In the second As3- site, As3- is bonded in a 9-coordinate geometry to eight Eu+2.40+ and one As3- atom. The As–As bond length is 2.83 Å.
- 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:
- 1678638
- Report Number(s):
- mp-1106198
- Resource Relation:
- Related Information: https://materialsproject.org/citing
- Country of Publication:
- United States
- Language:
- English
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