We are very grateful to Natural Sciences and Engineering Research Council of Canada, the Canada Foundation for Innovation, Ontario Ministry of Research and Innovation, and UWO for generous financial support. We also thank J. L. Dutton for assistance with X-ray crystallographic studies and V.H. for useful discussion.
Dicationic Sulfur Analogues of N-Heterocyclic Silylenes and Phosphenium Cations†
Article first published online: 9 JAN 2009
Copyright © 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Angewandte Chemie International Edition
Volume 48, Issue 12, pages 2210–2213, March 9, 2009
How to Cite
Martin, Caleb D., Jennings, Michael C., Ferguson, Michael J. and Ragogna, Paul J. (2009), Dicationic Sulfur Analogues of N-Heterocyclic Silylenes and Phosphenium Cations. Angew. Chem. Int. Ed., 48: 2210–2213. doi: 10.1002/anie.200805198
- Issue published online: 3 MAR 2009
- Article first published online: 9 JAN 2009
- Manuscript Received: 23 OCT 2008
- Natural Sciences and Engineering Research Council of Canada
- Canada Foundation for Innovation
- Ontario Ministry of Research and Innovation
- carbene analogues;
DABling with sulfur: Sulfur(II) dications can be prepared using α-diimines to stabilize the positive charge (see scheme; DAB=diazabutadiene, Dipp=2,6-diisopropylphenyl, OTf=CF3SO3). The bonding is best described as that of a N,N-chelated sulfur(II) dication; these species represent the first sulfur-based structural mimics of N-heterocyclic silylene compounds and phosphenium cations.