波谱学杂志 ›› 1998, Vol. 15 ›› Issue (3): 231-235.

• 研究论文 • 上一篇    下一篇

2,3,6-三甲氧基β-环糊精与氢醌及半醌包结作用的NMR研究

殷开梁, 徐端钧, 徐元植   

  1. 渐江大学化学系, 杭州 310027
  • 收稿日期:1997-12-09 修回日期:1998-01-23 出版日期:1998-06-05 发布日期:2018-01-13
  • 作者简介:殷开梁,男,33岁,硕士

NMR STUDIES OF 2,3,6-TRI-O-METHYLATED β-CYCLODEXTRIN INCLUSION-COMPLEXES WITH HYDROQUINONE AND SEMIQUINONE

Yin Kailiang, Xu Duanjun, Xu Yuanzhi   

  1. Department of Chemistry, Zhejiang University, Hangzhou 310027
  • Received:1997-12-09 Revised:1998-01-23 Online:1998-06-05 Published:2018-01-13

摘要: 报道了水溶液中主体2,3,6-三甲氧基β-环糊精与客体氢醌及半醌阴离子自由基包结作用的核磁共振研究.研究表明,氢醌容易进入主体的疏水腔中发生包结作用,该包结作用伴随着主体甲氧基质子化学位移的显著变化;而半醌与2,3,6-三甲氧基β-环糊精的包结现象则不明显,甲氧基质子的化学位移几乎不发生变化.

关键词: 2,3,6-三甲氧基β-环糊精, 包结作用, NMR, 氢醌, 半醌阴离子自由基

Abstract: Aqueous solution of inclusion complexes of host 2,3,6-tri-O-methylated β-Cyclodextrin with guest hydroquinone and semiquinone have been studied by 1H NMR spectroscopy in this paper. The inclusion complex ion resulted from insertion of hydroquinone into the host cavity occurs easily, accompanyed with obvious changes of chemical shift of host methoxyl protons; whereas the same is not true for semiquinone.

Key words: 2,3,6-tri-O-methylated β-cyclodextrin, Inclusion-complexion, 1H NMR, Hydroquinone, Semiquinone-anion-radical