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Zeitschrift für Kristallographie - Crystalline Materials

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Volume 232, Issue 7-9


RhCd9+δ (−1.18≤δ≤0.29) a γ-brass related cubic giant cell structure

Partha Pratim Jana
  • Corresponding author
  • Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur-721302, India, Tel.: 03222-283330
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Published Online: 2017-05-12 | DOI: https://doi.org/10.1515/zkri-2017-2045


The compound RhCd9+δ (−1.18≤δ≤0.29) has been synthesized and the average structure has been analyzed by single crystal X-ray diffraction. The average structure crystallizes in the face centered cubic space group F4̅3m (216) and contains ~405 atoms/unit cell. It represents a (2aγ)3-superstructure of cubic γ-brass and is isostructural to Rh7−xMg44+x. The comparison between the structures of RhCd9+δ and Rh7−xMg44+x has been presented using a layer description. The structure of the title phase has also been described by a “cluster” concept. The electronic structure of RhCd9+δ (−1.18≤δ≤0.29) shows that the phase is stabilized by a Hume-Rothery mechanism.

Keywords: complex intermetallics; crystal growth; crystal structure; solid state synthesis; X-ray diffraction


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About the article

Received: 2017-01-31

Accepted: 2017-04-05

Published Online: 2017-05-12

Published in Print: 2017-07-26

Citation Information: Zeitschrift für Kristallographie - Crystalline Materials, Volume 232, Issue 7-9, Pages 611–617, ISSN (Online) 2196-7105, ISSN (Print) 2194-4946, DOI: https://doi.org/10.1515/zkri-2017-2045.

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