Tsuji Hayato, Terada Masayoshi, Toshimitsu Akio, Tamao Kohei
Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.
J Am Chem Soc. 2003 Jun 25;125(25):7486-7. doi: 10.1021/ja034500e.
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.
基于反式、顺式交替寡聚硅烷的紫外吸收光谱，首次通过实验明确给出了确凿证据，支持了一个普遍接受的观点：聚硅烷中的σ共轭不能有效地通过具有小二面角的四硅烷片段（如顺式转折）进行延伸。
