Materials Data on Eu4Au2O9 by Materials Project
Eu4Au2O9 crystallizes in the orthorhombic Pbcn space group. The structure is three-dimensional. there are two inequivalent Eu3+ sites. In the first Eu3+ site, Eu3+ is bonded to seven O2- atoms to form a mixture of distorted edge and corner-sharing EuO7 pentagonal bipyramids. There are a spread of Eu–O bond distances ranging from 2.36–2.55 Å. In the second Eu3+ site, Eu3+ is bonded to seven O2- atoms to form a mixture of edge and corner-sharing EuO7 pentagonal bipyramids. There are a spread of Eu–O bond distances ranging from 2.37–2.59 Å. Au3+ is bonded in a rectangular see-saw-like geometry to four O2- atoms. There are a spread of Au–O bond distances ranging from 2.01–2.05 Å. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded to three Eu3+ and one Au3+ atom to form a mixture of distorted edge and corner-sharing OEu3Au trigonal pyramids. In the second O2- site, O2- is bonded to three Eu3+ and one Au3+ atom to form a mixture of distorted edge and corner-sharing OEu3Au tetrahedra. In the third O2- site, O2- is bonded to three Eu3+ and one Au3+ atom to form a mixture of distorted edge and corner-sharing OEu3Au trigonal pyramids. In the fourth O2- site, O2- is bonded to four Eu3+ atoms to form a mixture of edge and corner-sharing OEu4 tetrahedra. In the fifth O2- site, O2- is bonded to three Eu3+ and one Au3+ atom to form distorted OEu3Au tetrahedra that share corners with four OEu4 tetrahedra, corners with nine OEu3Au trigonal pyramids, edges with three OEu3Au tetrahedra, and an edgeedge with one OEu3Au trigonal pyramid.
- 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:
- 1197165
- Report Number(s):
- mp-21787
- Resource Relation:
- Related Information: https://materialsproject.org/citing
- Country of Publication:
- United States
- Language:
- English
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