Chinese Journal of Magnetic Resonance ›› 2006, Vol. 23 ›› Issue (1): 71-80.

• Articles • Previous Articles     Next Articles

Relationship between Molecular Distance-Edge Vector and 13C Chemical Shifts of Carbonyl Compounds

  

  1. College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
  • Received:2005-08-18 Revised:2005-10-26 Published:2006-03-05 Online:2006-03-05

Abstract:

Carbon-13 chemical shifts of 155 carbonyl groups were measured from 155 carbonyl compounds. The relationships between the 13C chemical shifts and the molecular distance-edge vector (MDE) and the γ parameter of the compounds were studied. The results indicated that the 13C chemical shifts of carbonyl compounds could be calculated by following equation:

δC=a+51+52+53+54+.

Key words: 13C NMR carbonyl compound, chemical shift, molecular distance-edge vector, γ parameter

CLC Number: