Chinese Journal of Magnetic Resonance ›› 1995, Vol. 12 ›› Issue (6): 649-656.

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CALCULATION ON 13C NMR CHEMICAL SHIFTS OF CARBONYL GROUPS

Lu Mowen, Hu WenXiang   

  1. Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing 100850
  • Received:1994-10-14 Revised:1995-02-09 Published:1995-12-05 Online:2018-01-17

Abstract: Chemical shifts of carbonyl groups in aldehydes,ketones,carbonyl chlorides,carboxylic acids and their esters were calculated with the equation established by our new model.The structural effects of 13C NMR were studied,and some abnonnal conditions of carbonyl groups in aldehydes and carboxylic acids were also discussed.

Key words: 13C NMR, Carbonyl groups, Unified formula, Calculation of chemical shifts, Principle of spherical symmetry of clectron cloud