化学学报 ›› 1983, Vol. 41 ›› Issue (4): 359-363. 上一篇    下一篇

研究论文

用NMR研究D-葡萄糖在碱性溶液内的行为

刘景瑶;朱晋昌;蒋丽金   

  1. 中国科学院感光化学研究所
  • 发布日期:1983-04-15

A study of the behavior of D-glucose in alkaline solutions using NMR technique

LIU JINGYAO;ZHU JINCHANG;JIANG LIJIN   

  • Published:1983-04-15

关键词: 测定, 核磁共振谱法, 葡萄糖, 异构化反应, 离解, 溶剂化

It is known that in alkaline solutions D-glucose undergoes three changes, namely: isomerization, dissociation and solvation; but the ^1^3C NMR spectra of D-glucose in neutral and alkaline solutions are almost without change. The ^1^3C NMR spectra of D-glucose, D-mannose and D-fructose at different pH values and the ^1H NMR spectra of D-glucose in neutral and alkaline aqueous solutions were determined. The chemical shifts of H(1) and H(2) were assigned by INDOR technique. They were compared with the net atomic charges obtained from EHMO calculations of the molecules, ions and hydrated ions. The results could be used to explain the fact of the absence of any changes in spectra.

Key words: DETERMINATION, NMR SPECTROMETRY, GLUCOSE, ISOMERIZATION REACTION, DISSOCIATION, SOLVATION

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