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8-oxyquinolinate and 8-oxyquinaldinate in silicon complex chemistry — a new face of old ligands

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Chemistry of Heterocyclic Compounds Aims and scope

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.

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Authors and Affiliations

  1. Institut für Anorganische Chemie, Technische Universität Bergakademie Freiberg, D-09596, Freiberg, Germany

    J. Wagler, D. Gerlach & G. Roewer

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  1. J. Wagler
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  2. D. Gerlach
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  3. G. Roewer
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Correspondence to D. Gerlach.

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Dedicated to Prof. Edmunds Lukevics on the occasion of his 70th birthday

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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 12, pp. 1826–1837, December, 2006.

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Wagler, J., Gerlach, D. & Roewer, G. 8-oxyquinolinate and 8-oxyquinaldinate in silicon complex chemistry — a new face of old ligands. Chem Heterocycl Compd 42, 1557–1567 (2006). https://doi.org/10.1007/s10593-006-0279-8

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  • DOI: https://doi.org/10.1007/s10593-006-0279-8

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