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Back Cover: A Sodium‐Containing Quasicrystal: Using Gold To Enhance Sodium’s Covalency in Intermetallic Compounds (Angew. Chem. Int. Ed. 51/2012)
Author(s) -
Smetana Volodymyr,
Lin Qisheng,
Pratt Daniel K.,
Kreyssig Andreas,
Ramazanoglu Mehmet,
Corbett John D.,
Goldman Alan I.,
Miller Gordon J.
Publication year - 2012
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201209047
Subject(s) - icosahedral symmetry , quasicrystal , intermetallic , crystallography , atom (system on chip) , cover (algebra) , sodium , covalent bond , materials science , chemistry , metallurgy , computer science , organic chemistry , mechanical engineering , alloy , engineering , embedded system
A sodium‐containing icosahedral quasicrystalline phase has been discovered. In their Communication page 12699 ff., G. J. Miller et al. describe the characterization of a Bergman‐type i ‐Na 13 Au 12 Ga 15 system. The existence and stability of this Na‐containing icosahedral quasicrystal is tightly linked to its substantial Au content, which allows the electron‐to‐atom value to satisfy a Hume–Rothery stabilization rule, and creates novel Na–Au polar‐covalent interactions.