ABSORPTION SPECTRA OF 2,5-DIMERCAPTO-1,3,4-THIADIAZOLE AND ITS METHYL DERIVATIVES
- 1 September 1960
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Chemistry
- Vol. 38 (9) , 1439-1444
- https://doi.org/10.1139/v60-202
Abstract
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 [Formula: see text]respectively.Keywords
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