石炭科学会議発表論文集
Online ISSN : 2423-8309
Print ISSN : 2423-8295
ISSN-L : 2423-8295
第36回石炭科学会議
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84.石炭抽出成分の溶液と粉末のESR
菊地 毅光飯野 雅
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p. 351-352

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The Upper Freeport coal's components fractionated by solvent extraction were studied by X-band ESR spectroscopy. The pyridine soluble and acetone soluble components dissolved in NMP show an organic radical peak in frozen solution. Powder patterns are broader and anisotropic. Their spectra were simulated with a Lorentzian or Gaussian lineshape. The difference might come from the magnetically symmetric reorientation in solution and the magnetically asymmetric layering by packing effect in powder.

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© 1999 一般社団法人 日本エネルギー学会
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