The molecular structure of dimethyl sulfide.

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概要

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• The gas-phase molecular structure of dimethyl sulfide, (CH<SUB>3</SUB>)<SUB>2</SUB>S, has been investigated by means of electron diffraction. By a joint analysis of the diffraction results and the spectroscopic moments of inertia by Pierce and Hayashi, the structure parameters, the distances in <I>r</I><SUB>g</SUB> and the angles in \varphi<SUB>av</SUB>, were determined (with parenthesized limits of error) to be as follows: S–C=1.807(2) Å, C–H=1.116(3) Å, ∠CSC=99.05(4)°, and ∠HCH=109.3(5)°. A tilt of 2.35° and the local C<SUB>3v</SUB> symmetry of the methyl groups were assumed. The isotope effects of deuterium substitution were examined, and the DCD angle was found to be larger than HCH in the zero-point average structure.

• 公益社団法人 日本化学会の論文

著者

• Kimura Masao

  Department of Chemistry Nagoya University

• Iijima Takao

  Department of Applied Chemistry, Faculty of Engineering, Yokohama National University

• Tsuchiya Shuzo

  Department of Chemistry, Faculty of Science, Hokkaido University

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