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Photoelectron and penning ionization electron spectroscopic investigation of trimethylsilyl- and t-butyl-thiophenes
Authors:Tamás Veszprémi  Yoshiya Harada  Koichi Ohno  Hideki Mutoh
Institution:Technical University of Budapest, Inorganic Chemistry Department H-1521 Budapest Hungary;The University of Tokyo, College of General Education, Department of Chemistry, Komaba, Meguro, Tokyo 153 Japan
Abstract:Penning ionization electron spectroscopy and CNDO/S calculations have been successfully applied to the analyses of the UV photoelectron spectra of 2- and 2,5-bistrimethylsilylthiophene and 2-t-butylthiophene. The relative intensities of the π type bands are greatly enhanced in the Penning spectra compared with those of the UV photoelectron spectra.
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