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Ionic Dissociation of SiCl4: Formation of [SiL6]Cl4 with L=Dimethylphosphinic Acid |
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| Authors: | Janine Kowalke Dr Jörg Wagler Christine Viehweger Dr Erica Brendler Prof Edwin Kroke |
| Institution: | 1. Technische Universität Bergakademie Freiberg, Department of Chemistry and Physics, Institute of Inorganic Chemistry, Leipziger Straße 29, 09599 Freiberg, Germany;2. Technische Universität Bergakademie Freiberg, Department of Chemistry and Physics, Institute of Analytical Chemistry, Leipziger Straße 29, 09599 Freiberg, Germany |
| Abstract: | Reactions of SiCl4 with R2PO(OH) (R=Me, Cl) yield compounds with six-fold coordinated silicon atoms. Whereas R=Me afforded the hexacoordinated tetra-cationic silicon complex Si(Me2PO(OH))6]4+ with chloride counter-ions, R=Cl caused release of HCl with formation of a cyclic dimeric silicon complex Si(Cl2PO(OH))(Cl2PO2)3(μ-Cl2PO2)]2 with bridging bidentate dichlorophosphates. |
| Keywords: | hypervalent compounds NMR spectroscopy Si?Cl dissociation structure elucidation X-ray diffraction |