Bend the Coin Your Way: Ligand Design and Main Group Element Chemistry

Authors

  • Carsten Böhler
  • Torsten Büttner
  • Stephan Deblon
  • Gionata Frasca
  • Gilles Frison
  • Jens Geier
  • Cécile Laporte
  • Florian Läng
  • Sandra Loss
  • Pascal Maire
  • Nicola Pè
  • Hartmut Schönberg
  • Markus Scherer
  • Christoph Widauer
  • Hansjörg Grützmacher Department of Chemistry, Swiss Federal Institute of Technology, ETH Hönggerberg, CH-8093 Zürich

DOI:

https://doi.org/10.2533/chimia.2001.814

Keywords:

Catalysis, Olefin complexes, Paramagnetic organometallics, Phosphanes, Phosphiranes

Abstract

The dibenzo[a,d]cycloheptatrienyl residue is introduced as platform for the high-yield synthesis of new rigid phosphanes (tropp ligand system) and phosphiranes (BABAR-phos); strained three-membered heterocycles. With tropp as ligands, transition metal complexes with unusual low oxidation states at the metal center could be prepared and isolated. Especially mononuclear paramagnetic rhodium(O) and iridium(O) complexes could be studied in detail. The BABAR-phos compounds show very high thermal and chemical stability, i.e. they are remarkably stable against oxygen, sulfur, strong alkylating agents, and aqueous acid and base. Rhodium(l) complexes with BABAR-phos proved to be highly stable active catalyst precursors for hydroborations.

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Published

2001-10-31

Issue

Vol. 55 No. 10 (2001): The Department of Chemistry, ETH Zürich, in the New Hönggerberg Buildings

Section

Scientific Articles

License

Copyright (c) 2001 Swiss Chemical Society

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

How to Cite

[1]
C. Böhler, T. Büttner, S. Deblon, G. Frasca, G. Frison, J. Geier, C. Laporte, F. Läng, S. Loss, P. Maire, N. Pè, H. Schönberg, M. Scherer, C. Widauer, H. Grützmacher, Chimia 2001, 55, 814, DOI: 10.2533/chimia.2001.814.