Ionization of Some Quinones by the Interaction with Aliphatic Amines
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概要
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The interactions of alkylamines with <I>p</I>-benzoquinone and its chloro-derivatives in ethanol and ethyl ether were studied by the rapid scan spectrophotometric method. The formation of anion radicals was found spectroscopically for the <I>n</I>-butylamine-<I>p</I>-benzoquinone, <I>n</I>-butylamine-chloranil, dimethylamine-<I>p</I>-benzoquinone, and tri-<I>n</I>-butylamine-chloranil systems. The rates of ionization reactions were determined to be 0.30 sec<SUP>−1</SUP> mol<SUP>−1</SUP> (at 253.7°K), 0.89 sec<SUP>−1</SUP>mol<SUP>−1</SUP> (at 222.7°K), and 1.39 sec<SUP>−1</SUP>mol<SUP>−1</SUP> (223.2°K) for the tri-<I>n</I>-butylamine-chloranil, <I>n</I>-butylamine-chloranil, and <I>n</I>-butylamine-<I>p</I>-benzoquinone systems, respectively. The activation energy for ionization of the tri-<I>n</I>-butylamine-chloranil system in ethanol was estimated to be 0.57 kcal/mol.
- 公益社団法人 日本化学会の論文
著者
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Yamaoka Tsuguo
The Institute for Solid State Physics, The University of Tokyo
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Nagakura Saburo
The Institute for Molecular Science
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