Journal of Molecular Structure, volume 44, issue 1, pages 15-21
Infrared spectra and configuration of N,N'-diaryl-thioureas
Boris Galabov
1
,
G. Vassilev
2, 3
,
Neda Neykova
2
,
A. Galabov
2
3
Institute of Plant Physiology, Bulgarian Academy of Sciences, Sofia-1113 Bulgaria
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Publication type: Journal Article
Publication date: 1978-03-01
Journal:
Journal of Molecular Structure
scimago Q2
wos Q2
SJR: 0.571
CiteScore: 7.1
Impact factor: 4
ISSN: 00222860, 18728014
Organic Chemistry
Inorganic Chemistry
Spectroscopy
Analytical Chemistry
Abstract
The conformation of the —NH—CS—NH— grouping in a series of N,N'-diarylthioureas some of which possess a marked anti-viral activity is studied using IR spectral data. The results indicate that in organic solvents (CCl4, CHCl3, C2C14, CH2C12) the compounds studied participate in an equilibrium between several isomeric forms arising from the possibility of a cis or trans structure of the —CS—NH— groups. The increased solvent polarity favours the cis conformation.
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