Kinetic studies of fast equilibrium by means of high-performance liquid chromatography. IV. Separation of rotamers of palladium(II) dithiocarbamates.
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概要
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The restricted rotation about carbon-nitrogen bonds of unsymmetrical palladium(II) dithiocarbamate chelates has been investigated by high-performance liquid chromatography. At higher temperatures, the rotation is so rapid that two rotamers have not been distinguished, and a single sharp peak has appeared on chromatograms, whereas at lower temperatures, they have been separated. The activation energy of the rotation of palladium(II) dithiocarbamate (Δ<I>H</I><SUP>\neweq</SUP>=83±5 kJ mol<SUP>−1</SUP> for Pd(C<SUB>6</SUB>H<SUB>5</SUB>CH<SUB>2</SUB>CH<SUB>2</SUB>NHCSS)<SUB>2</SUB>) is smaller than usual values of the energy barrier to rotate double bonds, but larger than those to rotate single bonds.
- 公益社団法人 日本化学会の論文
著者
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MORIYASU Masataka
Kobe Pharmaceutical University
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Hashimoto Yohei
Kobe Women's College Of Pharmacy
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Endo Masaru
Kinki District Narcotic Control Office
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