Centre National De La Recherche Scientifique

Claude G Chuit

Robert J Corriu

Catherine Reye

Genevieve E Cerveau

The present invention relates to new hexacoordinate silicon complexes, the process for their preparation and their application. These new complexes correspond to the general formula I: ##STR1## in which: A represents an alkali metal or alkaline earth metal except for magnesium, and

New hexacoordinate silicon complexes, the process for their preparation

A process for the preparation of hydrogenosilanes or halogenosilanes corresponding to the general formula I:

Process for the preparation of hydrogenosilanes or halogenosilanes

The present invention relates to new pentacoordinate silicon complexes, the process for their preparation and their application to the preparation of organosilanes. The pentacoordinate silicon complexes according to the invention correspond to the general formula I: ##STR1## in which: R denotes an alkyl, alkenyl, alkynyl, aryl, aralkyl, aralkenyl, aralkynyl or alkylaryl radical in which the aliphatic fragments are linear, branched or cyclic and contain from 1 to 20 carbon atoms,

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Palavas les Flots, France

Claude G Chuit