Electronic spectra of 1, 1, 2, 3-tetramethyl-3, 4-benzo-1, 2-disilacyclo-3-pentene and related compounds. stereoelectronic verification of. sigma.-. pi. conjugation …

H Sakurai, S Tasaka, M Kira

Index: Sakurai,H. et al. Journal of the American Chemical Society, 1972 , vol. 94, p. 9285 - 9286

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Citation Number: 45

Abstract

In 1964 we,'Gilman, et uZ.,~ and Hague and Prince3 reported independently that the silicon- silicon bond has conjugating properties with phenyl and vinyl groups. Phenylpentamethyldisilane shows an intense absorption at 43,300 cm-'(E 10,900); 1 the introduction of a pentamethyldisilanyl group into benzene causes a red shift to the extent of 6000 cm-'in the 'L, band, whereas the trimethylsilyl group has only a small bathochromic ...