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Cover Picture: Quadrannulene: A Nonclassical Fullerene Fragment (Angew. Chem. Int. Ed. 2/2010)
Author(s) -
Bhola Radha,
Bally Thomas,
Valente Alessandro,
Cyrański Michał K.,
Dobrzycki Łukasz,
Spain Stephen M.,
Rempała Paweł,
Chin Matthew R.,
King Benjamin T.
Publication year - 2010
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.200906552
Subject(s) - pentagon , fullerene , square (algebra) , cover (algebra) , molecule , fragment (logic) , curvature , chemistry , aromaticity , stereochemistry , crystallography , nanotechnology , materials science , organic chemistry , mathematics , geometry , mechanical engineering , engineering , algorithm
The square can play the pentagon's game of inducing curvature into aromatic molecules. In their Communication on page 399 ff., B. T. King and co‐workers report the synthesis of a [4]circulene, a compound with four fused benzenoid rings that form an internal square. Contrary to expectations, this deep‐bowl‐shaped quadrannulene is stable, thereby reflecting its radialene nature.