Materials Data on Al2CdBr8 by Materials Project
CdAl2Br8 crystallizes in the monoclinic Pc space group. The structure is two-dimensional and consists of one CdAl2Br8 sheet oriented in the (0, 1, 0) direction. Cd2+ is bonded to six Br1- atoms to form CdBr6 octahedra that share corners with two AlBr4 tetrahedra and edges with two AlBr4 tetrahedra. There are a spread of Cd–Br bond distances ranging from 2.80–2.89 Å. There are two inequivalent Al3+ sites. In the first Al3+ site, Al3+ is bonded to four Br1- atoms to form AlBr4 tetrahedra that share a cornercorner with one CdBr6 octahedra and an edgeedge with one CdBr6 octahedra. The corner-sharing octahedral tilt angles are 59°. There are a spread of Al–Br bond distances ranging from 2.27–2.37 Å. In the second Al3+ site, Al3+ is bonded to four Br1- atoms to form AlBr4 tetrahedra that share a cornercorner with one CdBr6 octahedra and an edgeedge with one CdBr6 octahedra. The corner-sharing octahedral tilt angles are 60°. There are a spread of Al–Br bond distances ranging from 2.26–2.38 Å. There are eight inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a single-bond geometry to one Al3+ atom. In the second Br1- site, Br1- is bonded in an L-shaped geometry to one Cd2+ and one Al3+ atom. In the third Br1- site, Br1- is bonded in a single-bond geometry to one Al3+ atom. In the fourth Br1- site, Br1- is bonded in a bent 120 degrees geometry to one Cd2+ and one Al3+ atom. In the fifth Br1- site, Br1- is bonded in an L-shaped geometry to one Cd2+ and one Al3+ atom. In the sixth Br1- site, Br1- is bonded in a bent 120 degrees geometry to one Cd2+ and one Al3+ atom. In the seventh Br1- site, Br1- is bonded in an L-shaped geometry to one Cd2+ and one Al3+ atom. In the eighth Br1- site, Br1- is bonded in an L-shaped geometry to one Cd2+ and one Al3+ atom.
- 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:
- 1673029
- Report Number(s):
- mp-1214910
- Resource Relation:
- Related Information: https://materialsproject.org/citing
- Country of Publication:
- United States
- Language:
- English
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