波谱学杂志 ›› 1995, Vol. 12 ›› Issue (2): 167-171.

• 研究论文 • 上一篇    下一篇

几个酰胺/水(重水)二元体系中N-14弛豫的溶剂同位素效应

黎明, 毛希安   

  1. 中国科学院武汉物理研究所波谱与原子分子物理国家重点实验室, 武汉 430071
  • 收稿日期:1994-07-19 修回日期:1994-08-27 出版日期:1995-04-05 发布日期:2018-01-17

SOLVENT ISOTOPE EFFECT ON N-14 RELAXATION IN SOME AMIDE-WATER BINARY SYSTEMS

Li Ming, Mao Xian   

  1. State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics, The Chinese Academy of Sciencas, Wuban 430071
  • Received:1994-07-19 Revised:1994-08-27 Online:1995-04-05 Published:2018-01-17

摘要: 本文测定了己内酰胺7水(重水).二甲基乙酰胺/水(重水)和丙烯酰胺7/水(重水)体系中N-14在低浓度区域的弛豫时间,考察了四极弛豫的溶剂同位素效应,虽然所研究的酰胺分子大小不一,但在无限稀释的溶液中,仍然可以表明这些酰胺分子的运动完全受溶剂分子的控制。

关键词: 酰胺, 14N弛豫, 溶剂同位素效应

Abstract: N-14 relaxation times of some amides(caprolactam,N,N-dimethy lacetamide,acrylamlde) in water or deuterated water solutions were measured by inversion-recovery technique. The solvent isotope effects on nuclear quadrupolar relaxation times were discussed. The rcsults show that under infinite dilutions, the kinetica of these solute moleculcs are still controlled by the solvent molecules although they have different molecular weights.

Key words: Amides, 14N relaxation, Solvent isotope effects