A Photoelectron Investigation of Acyl Silanes: The Photoelectron Spectra of Trimethylsilyl Phenyl Ketone and Phenyl tert-Butyl Ketone

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Abstract
The photoelectron spectra of trimethylsilyl phenyl ketone and phenyl tert-butyl ketone are presented and analyzed in terms of their constituent orbitals. A hyperconjugative interpretation for the low energy ionization potentials of the acyl silanes is postulated. A combination of p.e. spectroscopy and u.v. data are used to infer the level of the LUMO in these systems and to construct a partial energy level diagram.

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