8-OXYQUINOLINATE AND 8-OXYQUINALDINATE IN SILICON COMPLEX CHEMISTRY − A NEW FACE OF OLD LIGANDS

Authors

  • J. Wagler Institut für Anorganische Chemie, Technische Universität Bergakademie Freiberg, D-09596 Freiberg
  • D. Gerlach Institut für Anorganische Chemie, Technische Universität Bergakademie Freiberg, D-09596 Freiberg
  • G. Roewer Institut für Anorganische Chemie, Technische Universität Bergakademie Freiberg, D-09596 Freiberg

DOI:

https://doi.org/10.1007/7729

Keywords:

chelates, oxyquinoline, silicon, hypercoordination

Abstract

In tris(8-oxyquinolinato)phenylsilicon a novel coordination pattern of two 8-oxyquinolinate moieties in hexacoordinate Si complexes was found:  cis-(O,O')-cis-(N,N'). The product of the reaction between 1-chloro-1,2,5-triphenyl-2,5-diazasilolidine and sodium 8-oxyquinolinate [1-(8-oxyquinolinato)-1,2,5-triphenyl-2,5-diazasilolidine] bears a tetracoordinate Si-atom. Replacing 8-oxyquinolinate by 8-oxyquinaldinate,  however, leads to the formation of tris-(8-oxyquinaldinato)phenylsilicon  with hexacoordinate Si-atom, but with trans-(O,O')-cis-(N,N')-chelation. This is the first structurally and spectroscopically characterized 8-oxyquinaldinato-Si-complex with hypercoordinate silicon atom.

How to Cite
Wagler,  J.; Gerlach,  D.; Roewer, G.  Chem. Heterocycl. Compd. 2006, 42, 1557. [Khim. Geterotsikl. Soedin. 2006, 1826.]

For this article in the English edition see DOI 10.1007/s10593-006-0279-8

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Published

2023-04-25

Issue

No. 12 (2006)

Section

Original Papers