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Cover Picture: Stabilization of Tetrahedral P 4 and As 4 Molecules as Guests in Polymeric and Spherical Environments (Angew. Chem. Int. Ed. 41/2013)
Author(s) -
Schwarzmaier Christoph,
Schindler Andrea,
Heindl Claudia,
Scheuermayer Sabine,
Peresypkina Eugenia V.,
Virovets Alexander V.,
Neumeier Maria,
Gschwind Ruth,
Scheer Manfred
Publication year - 2013
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.201307186
Subject(s) - arsenic , crystallography , isomerization , molecule , materials science , chemistry , organic chemistry , catalysis
A new chapter in the history of arsenic has been opened up by M. Scheer et al. in their Communication on page 10887 ff. Long after the discovery of grey and yellow arsenic by Albertus Magnus and Anton Bettendorff, the structure of As 4 has finally been described by X‐ray crystallographic techniques. Highly reactive yellow arsenic was embedded in a polymeric matrix, which minimizes molecular motion and therefore allows the determination of the As–As bond length.