Vibration spectra and rotational isomerism of chain molecules. IV. Diethyl sulfide, ethyl propyl sulfide, and butyl methyl sulfide.
作者： Masahiro Ohta , Yoshiki Ogawa , Hiroatsu Matsuura , Issei Harada , Takehiko Shimanouchi
DOI: 10.1246/BCSJ.50.380
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摘要: The Raman and infrared spectra of diethyl sulfide, ethyl propyl sulfide butyl methyl were measured for the gaseous, liquid, glassy crystalline states. normal vibration frequencies calculated, a consistent set force constants explaining basic aliphatic sulfides being assumed. rotational isomerism was studied following conclusions obtained. (1) Only all-trans form exists in state. (2) Many forms coexist liquid state most them persist even at nitrogen temperature. (3) In state, gauche conformation about S–C axis is more stable than trans conformation, C–C directly adjoining as conformation. These results confirm that repulsive between nonbonded hydrogen atoms one important factors influencing stability molecualr conformations. conformations ...
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