Angewandte Chemie International Edition

Cover image for Vol. 56 Issue 27

Editor: Peter Gölitz, Deputy Editors: Neville Compton, Haymo Ross

Online ISSN: 1521-3773

Associated Title(s): Angewandte Chemie, Chemistry - A European Journal, Chemistry – An Asian Journal, ChemistryOpen, ChemPhotoChem, ChemPlusChem, Zeitschrift für Chemie

52_16i/2013Inside Cover: Isolation of a Neutral P8 Cluster by [2+2] Cycloaddition of a Diphosphene Facilitated by Carbene Activation of White Phosphorus (Angew. Chem. Int. Ed. 16/2013)

Piecing together a carbonyl-decorated carbene and P4 affords the two transient diphosphenes (puzzle pieces in foreground) that rapidly dimerize to give a P8 allotrope (X-ray structure). Whereas nucleophilic carbenes stabilize main-group allotropes, in their Communication on page 4462 ff., T. W. Hudnall and co-workers show how the electrophilicity of carbenes dictates reactivity toward P4. By modulating carbene electrophilicity, two allotropes of phosphorus can be isolated and characterized.

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