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Cover Picture: Ion Segregation and Electrostatic Imbalance in Metal Hydrides (Z. Anorg. Allg. Chem. 16/2017)
Author(s) -
Voss Mario,
Kohlmann Holger
Publication year - 2017
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201770161
Subject(s) - metal , lithium (medication) , crystal (programming language) , crystallography , ion , aluminium , cover (algebra) , hydride , crystal structure , lithium hydride , chemistry , space (punctuation) , materials science , inorganic chemistry , ionic bonding , engineering , organic chemistry , mechanical engineering , medicine , linguistics , philosophy , computer science , programming language , endocrinology
The cover picture shows the crystal structure of α‐LiAlH 4 in space group type P 2 1 / c view along 00 1 ). Lithium atoms (green) and aluminium atoms (purple) are surrounded by five and four hydride anions (white), respectively. The coordination of hydride anions by metal cations represents the simplest numerical solution ( Σ tot = Σ num ) according to Beck's crystal chemical indices of ion segregation Σ and electrostatic imbalance Y . The background shows the crystal structure of EuMg 2 H 6 which in contrast does not conform to the simplest numerical solution. More details are discussed in the article Voss and Kohlmann on pp. 1037 ff .
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