Raman Spectroscopic Investigations of the Amide-Amide and Amide-Solvent Interactions

아미드-아미드 및 아미드-용매 상호작용에 관한 Raman 분광학적인 연구

  • 유정아 (고려대학교 이과대학 화학과) ;
  • 최영상 (고려대학교 이과대학 화학과)
  • Published : 1983.12.20

Abstract

Raman spectra for the carbonyl stretching mode of the amides, and amide-solvent systems have been recorded to investigate the effect of alkyl substitutions at the carbonyl carbon and at the nitrogen on the amide hydrogen-bonding. The data have shown that the interaction affinities are in the order of amide-amide > amide-water > amide-alcohol in formamide system, and amide-water > amide-amide > amide-alcohol in acetamide and propionamide systems. The strength of the proton acceptor of the carbonyl oxygen is increased by the presence of alkyl group to the carbonyl carbon and the proton donorcity of the amide is decreased by the alkyl substitution at the nitrogen. The above results are in good agreement with the ab initio SCF MO calculation.

Keywords

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