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Crystal Structure of the Molecular Complex of Silicon Tetrafluoride with 4-Phenylpyridine

Davydova, E. I. ; Virovets, A. V. ; Peresypkina, E. V. ; Timoshkin, A. Yu.



Abstract

The crystal structure of the silicon tetrafluoride molecular complex with 4-phenylpyridine SiF4 center dot 2ppy has been determined by X-ray diffraction analysis. Although 4-phenylpyridine has a higher proton affinity than pyridine, the Si-N bond length in crystalline SiF4 center dot 2Py is shorter by 0.03(2) angstrom than in SiF4 center dot 2ppy. The energies of donor-acceptor Si-N bonds in SiF4 ...

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