Change in the associated molecular structure of coals in pyridine/CS2 mixed solvents

H. Kumagai, K. Matuoka, K. Norinaga, T. Chiba, M. Sasaki

研究成果: ジャーナルへの寄稿学術誌査読

抄録

In order to evaluate noncovalent interactions in coal, change in the associated molecular structure of coals in pyridine/CS2 mixed solvents have been investigated. For bituminous coal, variation in L-band EPR spectra with mixing ratio of the solvents is in a close correspondence to that in equilibrium swelling ratio and in molecular mobility obtained from 1H-NMR. The EPR spectra for lignite show similar variation to that for bituminous coal, however, does not correlate with equilibrium swelling ratio and molecular mobility. Since the L-band EPR characteristics appear to reflect the situation of aromatic π-π and charge transfer interactions in coal, these results indicate that swelling in the mixed solvents proceed with the declining of non-covalent interaction, such as aromatic π-π and charge transfer interaction, in coal.

本文言語英語
ページ(範囲)289-291
ページ数3
ジャーナルACS Division of Fuel Chemistry, Preprints
42
1
出版ステータス出版済み - 1997
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • エネルギー(全般)

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