ジメトエートにおけるN-H…S分子内水素結合

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タイトル別名
  • N-H…S intramolecular hydrogen bonding in Dimethoate
  • ジメトエート ニ オケル N-H S ブンシ ナイスイソ ケツゴウ

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抄録

It was observed that Dimethoate {O, O-dimethyl-S- (N-methylcarbamoylmethyl) -pithiophosphate}, one of the organo-phosphoric insecticides, shows two absorptions at 3460 and 3430 cm-1, being assigned to NH stretching vibration of free molecule in dilute carbon tetrachloride solution. Changes of absorption intensity in various concentrations and of the absorption bands measured in a solvent mixture of both carbon tetrachloride and mesitylene were examined. In this connection, N-methylphenylmercaptoacetamide and N-methyl-β-phenylpropionamide, as related compounds, were also synthesized and their NH stretching vibrations in carbon tetrachloride were examined. The absorption3460 cm-1 is considered to be due completely to the free NH group, and that at 3430 cm-1 has been clarified to be caused by the stretching vibration fo the NH-group, intramolecular hydrogen bonding being formed such like N-H…S.

収録刊行物

  • 分析化学

    分析化学 17 (3), 364-366, 1968

    公益社団法人 日本分析化学会

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