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AuCd4: A Hume-Rothery Phase with VEC of 1.8 and Icosahedral and Trigonal-Prismatic Clusters as Building Blocks.

Jana, Partha LU and Lidin, Sven LU (2015) In Inorganic Chemistry 54(3). p.713-721
Abstract
The η phase in the Au-Cd binary system has been synthesized, and the structure has been analyzed by single-crystal X-ray diffraction. The compound η-AuCd4 crystallizes in the hexagonal space group P63/m (No. 176). The unit cell contains ∼273 atoms. The compound AuCd4 represents a √3a × √3a × c superstructure of the AgMg4 type. The structure can be well described by icosahedral and trigonal-prismatic clusters. A phase transition to the high-temperature ε phase occurs exothermically at around 578 K. The compound is formed at a sharp valence electron concentration of 1.8 e/a. The compound can be understood within the framework of the Hume-Rothery stabilization mechanism.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Inorganic Chemistry
volume
54
issue
3
pages
713 - 721
publisher
The American Chemical Society
external identifiers
  • pmid:24934260
  • wos:000348887400004
  • scopus:84961290834
ISSN
1520-510X
DOI
10.1021/ic500616t
language
English
LU publication?
yes
id
fa95f7a9-61a2-4443-a74f-7b1d845e2f96 (old id 4528403)
date added to LUP
2014-08-08 15:56:12
date last changed
2017-07-30 03:12:36
@article{fa95f7a9-61a2-4443-a74f-7b1d845e2f96,
  abstract     = {The η phase in the Au-Cd binary system has been synthesized, and the structure has been analyzed by single-crystal X-ray diffraction. The compound η-AuCd4 crystallizes in the hexagonal space group P63/m (No. 176). The unit cell contains ∼273 atoms. The compound AuCd4 represents a √3a × √3a × c superstructure of the AgMg4 type. The structure can be well described by icosahedral and trigonal-prismatic clusters. A phase transition to the high-temperature ε phase occurs exothermically at around 578 K. The compound is formed at a sharp valence electron concentration of 1.8 e/a. The compound can be understood within the framework of the Hume-Rothery stabilization mechanism.},
  author       = {Jana, Partha and Lidin, Sven},
  issn         = {1520-510X},
  language     = {eng},
  number       = {3},
  pages        = {713--721},
  publisher    = {The American Chemical Society},
  series       = {Inorganic Chemistry},
  title        = {AuCd4: A Hume-Rothery Phase with VEC of 1.8 and Icosahedral and Trigonal-Prismatic Clusters as Building Blocks.},
  url          = {http://dx.doi.org/10.1021/ic500616t},
  volume       = {54},
  year         = {2015},
}