Structure of a cumulene bearing bulky substituents. X-ray study of 1,1,4,4-terakis(trimethylsilyl)butatriene.

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概要

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• The structure of cumulene bearing bulky substituents, 1,1,4,4-tetrakis(trimethylsilyl)butatriene, has been determined by an X-ray diffraction method. The molecule is centrosymmetric, and the variation in carbon–carbon double bonds has been observed. The distance of the central C=C bond is 1.276(8) Å, whereas that of the terminal C=C bond is 1.319(6) Å. These bond lengths are very similar to the unsubstituted butatrienes and the influence of bulky trimethylsilyl groups is not recognized in this context. Some distortions have been observed in the bond angles concerning the trimethylsilyl groups; the overcrowded environment of the central C=C bond seems to make this less reactive.

• 公益社団法人 日本化学会の論文

著者

• Utimoto Kiitiro

  Department Of Industrial Chemistry Faculty Of Engineering Kyoto University

• Morimoto Yoshihiro

  Basic Research Laboratory, Himeji Institute of Technology

• Yasuoka Noritake

  Basic Research Laboratory, Himeji Institute of Technology

• Higuchi Yoshiki

  Basic Research Laboratory, Himeji Institute of Technology

• Oshima Koichiro

  Department of Chemistry, Massachusetts Institute of Technology

• Wakamatsu Kuni

  Department of Industrial Chemistry, Faculty of Engineering, Kyoto University

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