Reactions of the Donor‐Stabilized Silylene Bis[N,N′‐diisopropyl‐benzamidinato(−)]silicon(II) with Brønsted Acids |
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| Authors: | Konstantin Junold Katharina Sinner Johannes A. Baus Dr. Christian Burschka Dr. Célia Fonseca Guerra Prof. Dr. F. Matthias Bickelhaupt Prof. Dr. Reinhold Tacke |
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| Affiliation: | 1. Universit?t Würzburg, Institut für Anorganische Chemie, Am Hubland, 97074 Würzburg (Germany), Fax: (+49)?931‐31‐84609;2. VU University Amsterdam, Department of Theoretical Chemistry, Amsterdam Center for Multiscale Modeling (ACMM), De Boelelaan 1083, 1081 HV Amsterdam (The Netherlands);3. Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen (The Netherlands) |
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| Abstract: | Reaction of the donor‐stabilized silylene 1 (which is three‐coordinate in the solid state and four‐coordinate in solution) with [HMCp(CO)3] (M=Mo, W; Cp=cyclopentadienyl) leads to the cationic five‐coordinate silicon(IV) complexes 2 and 3 , respectively, and reaction of 1 with CH3COOH yields the neutral six‐coordinate silicon(IV) complex 4 . Compounds 2 – 4 were structurally characterized by crystal structure analyses and multinuclear NMR spectroscopic studies in the solid state and in solution. The formation of 2 – 4 can be formally described in terms of a Brønsted acid/base reaction, coupled with a redox process (SiII→SiIV, H+→H?). |
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| Keywords: | cations density functional calculations N ligands silicon transition metals |
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