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Structure of a (4 + 4)-Coordinate Silicon Compound, a Precursor of Hypercoordinate Silyl Mono- and Dications

Authors

  • Dr. Francis Carré,

    1. Université de Montpellier II, Sciences et Techniques du Languedoc, URA 1097, Place Eugène Bataillon, case 007, F-34095 Montpellier Cédex 5 (France), Telefax: Int. code + (67)143888
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  • Dr. Claude Chuit,

    1. Université de Montpellier II, Sciences et Techniques du Languedoc, URA 1097, Place Eugène Bataillon, case 007, F-34095 Montpellier Cédex 5 (France), Telefax: Int. code + (67)143888
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  • Prof. Dr. Robert J. P. Corriu,

    Corresponding author
    1. Université de Montpellier II, Sciences et Techniques du Languedoc, URA 1097, Place Eugène Bataillon, case 007, F-34095 Montpellier Cédex 5 (France), Telefax: Int. code + (67)143888
    • Université de Montpellier II, Sciences et Techniques du Languedoc, URA 1097, Place Eugène Bataillon, case 007, F-34095 Montpellier Cédex 5 (France), Telefax: Int. code + (67)143888
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  • Ahmad Mehdi,

    1. Université de Montpellier II, Sciences et Techniques du Languedoc, URA 1097, Place Eugène Bataillon, case 007, F-34095 Montpellier Cédex 5 (France), Telefax: Int. code + (67)143888
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  • Dr. Catherine Reyé

    1. Université de Montpellier II, Sciences et Techniques du Languedoc, URA 1097, Place Eugène Bataillon, case 007, F-34095 Montpellier Cédex 5 (France), Telefax: Int. code + (67)143888
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Abstract

original image

A tetracapped tetrahedron describes the geometry of the coordination environment of the silicon atom in 1; it is thus (4 + 4)-coordinate. Treatment of 1 with two equivalents of HC1 leads surprisingly to loss of H2 and formation of the corresponding chloride salt, whose centrosymmetric cation contains a six-coordinate silicon atom.

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