An ESR Study of Nitric Oxide Adsorbed on Silica Gel
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概要
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Nitric oxide adsorbed on silica gel was investigated by ESR. It was found that there are at least two adsorption sites for nitric oxide; one of them is on the silica gel which has been pretreated at low temperatures (below <I>ca.</I> 500 °C) (Site L), while the other is predominantly on the silica gel which has been pretreated at high temperatures (above <I>ca</I>, 500 °C) (Site H). The crystal-field splitting of the Π<SUB>x</SUB><SUP>*</SUP> and Π<SUB>Y</SUB><SUP>*</SUP> states, which are originally degenerate, was determined to be 0.26 eV for the nitric oxide adsorbed on Site L and 0.52 eV for the nitric oxide on Site H. The temperature dependence of the ESR spectrum was also examined, and the average crystal field acting on nitric oxide was found to decrease with an increase in the temperature.
- 公益社団法人 日本化学会の論文
著者
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Iwaizumi Masamoto
Chemical Research Institute of Non-Aqueous Solutions, Tohoku University
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Kubota Shozo
Chemical Research Institute of Non-Aqueous Solutions, Tohoku University
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Isobe Taro
Chemical Research Institute of Non-Aqueous Solutions, Tohoku University
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