
Journal of Organometallic Chemistry p. 1 - 8 (1985)
Update date:2022-08-10
Topics:
Kaim, Wolfgang
Poly-trimethylsilyloxy substituted benzenes have been studied by UV photoelectron spectroscopy (PES).The observed ionization energies show that the OSiMe3 group is a stronger donor than the methyl group but a weaker donor than OMe or CH2SiMe3 groups.Highly substituted derivatives yield radical cations on oxidatopn with AlCl3/CH2Cl2/Me3SiCl; the electron spin resonance (ESR) as well as the PE results indicate dominating nO/? interaction, with little or no ?O-Si/? hyperconjugation, for the radical cation ground state.
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