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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 31, Number 6
JKCSEZ 31(6)
December 20, 1987 

 
Title
Effect of Some Amides on the Hindered Rotation of N-C(S) Bond of Thioacetamide in CCl4

CCl4속에서 Thioacetamide의 N-C(S) 부자유회전에 미치는 몇가지 Amide의 영향
Author
Seong-Gu Ro, Young-Sang Choi, Chang-Ju Yoon

노성구, 최영상, 윤창주
Keywords
Abstract
CCl4속에서 티오아세트산아미드(TA)와 몇가지 아미드(N,N-dimethylformamide (DMF), N,N-dimethylacetamide (DMA) and N,N-dimethylpropionamide (DMP)) 사이의 수소결합이 TA의 N-C(S) 결합 주위의 부자유 회전에 미치는 영향을 nmr 분광학적인 방법으로 연구하였다. CCl4분율이 증가할 때 TA의 NH2기의 양성자 nmr 스펙트럼은 이중선으로 뚜렷하게 분리되었으며, 그 정도는 DMF < DMA < DMP순으로 증가하였다. 이런 현상을 TA와 아미드사이의 분자간 수소결합으로 설명하였다.

The effect of the hydrogen-bonding between thioacetamide (TA) and amides (N,N-dimethylformamide (DMF), N,N-dimethylacetamide (DMA) and N,N-dimethylpropionamide (DMP)) on the hindered rotation of N-C(S) bond of TA was investigated by the nmr spectroscopy. The 1H-nmr spectrum of NH2 group in TA was distinctly separated into two peaks with increasing the amount of CCl4 and the effect of amides on the peak separation was in the order of DMF < DMA < DMP. Those phenomena were interpreted in terms of hydrogen-bonding between TA and amide.

Page
486 - 490
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