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Cover Picture: (Ge 4 Bi 14 ) 4− : A Case of “Element Segregation” on the Molecular Level (Angew. Chem. Int. Ed. 11/2017)
Author(s) -
Wilson Robert J.,
Dehnen Stefanie
Publication year - 2017
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201701352
Subject(s) - crystallography , main group element , center (category theory) , supramolecular chemistry , homologous series , ion , binary number , chemistry , group (periodic table) , stereochemistry , materials science , crystal structure , transition metal , catalysis , organic chemistry , arithmetic , mathematics
(Ge4Bi14)4− is the largest Bi‐containing main‐group polyanion that is not stabilized by ligands or endohedral atoms. Its structure comprises motifs from smaller polybismuthide anions, such as Bi 7 3− or Bi 11 3− , and clearly prefers the spatial separation of Bi atoms from a Ge 4 waist in the center of the anion—unlike binary relatives with homologous element combinations that favor a maximum number of heteroatomic bonds. These findings, which were confirmed by DFT calculations, are described by S. Dehnen and R. J. Wilson in their Communication on page 3098 ff.