On the effect of 1,2-disubstitution with Me3M (M = Si, Ge, Sn) upon the electronic structure of 3,3-dimethykyciopropene

Article abstract of DOI:10.1002/cber.19961290210

He(I) PE spectra of a series of 3,3-dimethylcyclopropenes bearing Me₃Si (1), Me₃Ge (2), and Me₃Sn (3) groups in the 1- and 2-positions, as well as the He(II) PE spectra of 1 and 3 were recorded. The changes in the lowest energy ionizations along the series are interpreted in terms of inductive and hyperconjugative interactions. The new compounds were prepared by reaction of lithiated 3,3-dimethylcyclopropene with the corresponding trirnethyimetal chlorides. VCH Verlagsgeseiischaft mbH 1996.