NQR and NMR studies of boron trihalide-trimethylamine complexes.
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概要
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The character of the B–X bond (X=Cl, Br, and I) in BX<SUB>3</SUB>–TMA complexes (TMA=trimethylamine) has been studied on the basis of the results of the nuclear quadrupole resonance (NQR). The ionic character of the B–X bond decreased in the order as expected from the electronegativity of the halogen atoms. The temperature dependence of the halogens on the NQR frequencies has been examined for BBr<SUB>3</SUB>– and BI<SUB>3</SUB>–TMA. For BBr<SUB>3</SUB>–TMA, all the observed resonance lines faded out far below the melting point and this has been attributed to the hindered rotation of the BBr<SUB>3</SUB> group about the B–N bond, as with BCl<SUB>3</SUB>–TMA.
- 公益社団法人 日本化学会の論文
著者
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Okuda Tsutomu
Department Of Bio-recycling Faculty Of Engineering Hiroshima Kokusai Gakuin University
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Ishihara Hideta
Department Of Chemistry Faculty Of Education Saga University
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Yamada Koji
Deparment Of Food Science And Technology Faculty Of Agriculture Kyushu University
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NEGITA Hisao
Department of Chemistry, Faculty of Science, Hiroshima University
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Negita Hisao
Department Of Chemistry Faculty Of Science Hiroshima University
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