title: Sigmasigma* transition in anti,cisoid alternating oligosilanes: clear-cut evidence for suppression of conjugation effect by a cisoid turn.
abstract: On the basis of the UV absorption spectra of the anti,cisoid alternating oligosilanes, the first experimental clear-cut evidence was presented for the generally accepted idea that the sigma conjugation in polysilanes does not effectively extend through a tetrasilane fragment with a small dihedral angle such as a cisoid turn.
authors.affiliation: Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.
authors.forename: Hayato
authors.initials: H
authors.lastname: Tsuji
authors.forename: Masayoshi
authors.initials: M
authors.lastname: Terada
authors.forename: Akio
authors.initials: A
authors.lastname: Toshimitsu
authors.forename: Kohei
authors.initials: K
authors.lastname: Tamao