ABSORPTION SPECTRA OF 2,5-DIMERCAPTO-1,3,4-THIADIAZOLE AND ITS METHYL DERIVATIVES

The absorption spectra of the three tautomeric forms of 2,5-dimercapto-1,3,4-thiadiazole have been determined by using the N- and S-methyl derivatives. In the ultraviolet region, a hypsochromic shift in absorption maxima is shown in the change from the dithionic to the thionic-thiolic and to the dit...

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Bibliographic Details
Published in:Canadian journal of chemistry 1960-09, Vol.38 (9), p.1439-1444
Main Author: Thorn, G. D
Format: Article
Language:English
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Summary:The absorption spectra of the three tautomeric forms of 2,5-dimercapto-1,3,4-thiadiazole have been determined by using the N- and S-methyl derivatives. In the ultraviolet region, a hypsochromic shift in absorption maxima is shown in the change from the dithionic to the thionic-thiolic and to the dithiolic forms. Strong bands in the infrared at 1508-1475 cm −1 and 1435-1415 cm −1 have been assigned to respectively.
ISSN:0008-4042
1480-3291
DOI:10.1139/v60-202