Chapter 53. Octachlorocyclotetrasilane, Perchloropolysilane and New Dialkoxy- and Diaminopolysilanes

  1. Prof. Norbert Auner2 and
  2. Prof. Johann Weis3
  1. Julian R. Koe,
  2. Douglas R. Powell,
  3. Jarrod J. Buffy and
  4. Robert West

Published Online: 28 APR 2008

DOI: 10.1002/9783527619917.ch53

Organosilicon Chemistry IV: From Molecules to Materials

Organosilicon Chemistry IV: From Molecules to Materials

How to Cite

Koe, J. R., Powell, D. R., Buffy, J. J. and West, R. (2000) Octachlorocyclotetrasilane, Perchloropolysilane and New Dialkoxy- and Diaminopolysilanes, in Organosilicon Chemistry IV: From Molecules to Materials (eds N. Auner and J. Weis), Wiley-VCH Verlag GmbH, Weinheim, Germany. doi: 10.1002/9783527619917.ch53

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. Department of Chemistty, University of Wisconsin Madison, WI 53706, USA Tel.: Int. code + (608)262 1873— Fax: Int. code + (608)262 6143

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:

  • polysilanes;
  • cyclosilanes;
  • photolysis;
  • ring-opening polymerization

Summary

An X-ray diffraction study of crystalline octachlorocyclotetrasilane, Si4Cl8, shows that it has a planar, centrosymmetric structure. Photolysis of Si4Cls transforms it into the linear polymer, (SiCl2)n when crystals of Si4Cl8 are photolyzed, (SiCl2)n, is obtained as single crystals. X-ray crystallography of these indicates that (SiCl2)n has an all-trans, fully extended conformation. Reaction of (SiCl2)n with alcohols, amines and water leads to replacement of the chlorine atoms and formation of novel polymers [Si(OR)2]n, [Si(NR2)2]n, [Si(OH)2]n.