Chapter 85. Salen-Silicon Complexes — a New Type of Hexacoordinate Silicon

  1. Prof. Norbert Auner2 and
  2. Prof. Johann Weis3
  1. Jörg Haberecht,
  2. Frank Mucha,
  3. Uwe Bohme and
  4. Gerhard Roewer

Published Online: 28 APR 2008

DOI: 10.1002/9783527619917.ch85

Organosilicon Chemistry IV: From Molecules to Materials

Organosilicon Chemistry IV: From Molecules to Materials

How to Cite

Haberecht, J., Mucha, F., Bohme, U. and Roewer, G. (2008) Salen-Silicon Complexes — a New Type of Hexacoordinate Silicon, in Organosilicon Chemistry IV: From Molecules to Materials (eds N. Auner and J. Weis), Wiley-VCH Verlag GmbH, Weinheim, Germany. doi: 10.1002/9783527619917.ch85

Editor Information

  1. 2

    Inst. für Anorganische Chemie, der Universität Frankfurt, Marie-Curie-Strasse 11, D-60439 Frankfurt am Main, Germany, Phone: 0 69/7 98-29180, -29591, Fax: 069/798-29188

  2. 3

    Wacker-Chemie GmbH, Geschäftsbereich S, Werk Burghausen, Johannes-Hess-Strasse 24, D-84489 Burghausen, Germany

Author Information

  1. Institutfür Anorganische Chemie Technische Universität Bergakademie Freiberg Leipziger Str. 29, D-09596 Freiberg, Germany Tel.: Int. code + (3731)39 3174—- Fax: Int. code + (3731139 4058

Publication History

  1. Published Online: 28 APR 2008
  2. Published Print: 17 JAN 2000

ISBN Information

Print ISBN: 9783527298549

Online ISBN: 9783527619917

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Keywords:

  • azomethine compounds;
  • silicon;
  • silicon complexes

Summary

The reaction of tetradentate azomethine ligands H2salen* [N,N′-ethylenebis(2–hydroxyacetophenoneimine)] or Hzsalen* [N,N′-ethylene-bis(3,5–di-tert-butyl-sali-cylideneimine)] with chlorosilanes produces silicon compounds with hexacoordinated silicon (salen)SiXY (X = Cl; Y = H, Cl, C, C6H5). Both ligands X and Y can be exchanged for fluorine. The crystal structure analysis of (salen*)SiF2 reveals the truly hexacoordination of the silicon atom. The chloro compounds (salen*)SiCl2 undergo Wurtz-type coupling reactions leading to oligosilanes with hypervalent silicon. Coupling of (salen*)SiCl2 with acetylides creates compounds with an Si-CEC-Si backbone.