Angewandte Chemie International Edition

Cover image for Vol. 55 Issue 36

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, ChemPlusChem, Zeitschrift für Chemie

51_28/2012Cover Picture: P-Stereogenic Secondary Iminophosphorane Ligands and Their Rhodium(I) Complexes: Taking Advantage of NH/PH Tautomerism (Angew. Chem. Int. Ed. 28/2012)

Secondary Iminophosphoranes exist as two tautomers in equilibrium. In their Communication on page 6951 ff., A. Riera, X. Verdaguer, and co-workers show that P-stereogenic iminophosphoranes are convenient, configurationally stable, oxidation-resistant pre-ligands. The cover picture shows a tug of war between the forces that shift the equilibrium. In solution the PH form predominates, but in the presence of a metal the equilibrium is shifted towards the PIII form, and the NH team wins!

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