The vibrational spectra and rotational isomerism of 3-butenylsilane.

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概要

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• The infrared and Raman spectra of 3-butenylsilane, CH<SUB>2</SUB>=CHCH<SUB>2</SUB>CH<SUB>2</SUB>SiH<SUB>3</SUB> (and –SiD<SUB>3</SUB>), were measured for the gaseous, liquid, and solid states. The fundamental vibrations were assigned, and the normal vibrations were calculated in relation to the rotational isomerism. The calculations indicated that the <I>cis</I>-<I>trans</I> (CT), <I>skew</I>-<I>trans</I> (ST), and <I>skew</I>-<I>gauche</I> (SG and SG′) forms coexist in the gaseous and liquid states, while the CT form only persists in the solid state. From the temperature variation in the Raman intensities, the stability of the molecular conformations was found to be in this order: CT\gtrsimST>SG′>SG in the liquid state, indicating that an appreciable interaction between the silicon atom and the C=C bond, such as in the case of allylsilane, is not present for 3-butenylsilane.

• 公益社団法人 日本化学会の論文

著者

• Ohno Keiichi

  Department Of Chemistry Faculty Of Science Hiroshima University

• Taga Keijiro

  Department of Chemistry, Faculty of Science, Hiroshima University

• Murata Hiromu

  Department of Chemistry, Faculty of Science, Hiroshima University

• Ohno Keiichi

  Department of Chemistry, Faculty of Science, Hiroshima University

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