Abstract
The pyrolysis of 1-sila-2,5-hexadiene has been optimized by photoelectron spectroscopic real-time gas analysis. At 1050 K the thermal dehydrogenation yields exclusively hydrogen and silabenzene, for which all valence ionization energies up to 21 eV are observed. The corresponding radical cation states of silabenzene are assigned by ab initio SCF calculations and compared to those for the isovalent benzene.
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