THE INFRARED SPECTRA OF 4-SUBSTITUTED-THIOSEMICARBAZIDES AND DIAZOTIZATION PRODUCTS
The infrared absorption spectra of 4-substituted-thiosemicarbazides, 5-(substituted)amino-1,2,3,4-thiatriazoles, and the corresponding isomeric tetrazolinethiones have been studied and structural assignments of importance to these systems made or suggested. Important conclusions drawn from the spect...
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Veröffentlicht in: | Canadian journal of chemistry 1958-05, Vol.36 (5), p.801-809 |
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creator | Lieber, Eugene Rao, C. N. R Pillai, C. N Ramachandran, J Hites, Ralph D |
description | The infrared absorption spectra of 4-substituted-thiosemicarbazides, 5-(substituted)amino-1,2,3,4-thiatriazoles, and the corresponding isomeric tetrazolinethiones have been studied and structural assignments of importance to these systems made or suggested. Important conclusions drawn from the spectral data are: there is no suggestion of any thiol-thione tautomerism for the solid 4-substituted-thiosemicarbazides and that the thione structure predominates for these substances; that the so-called 5-thiol-tetrazoles also exist as thiones; and that the diazotization products of the 4-substituted-thiosemicarbazides yield 1,2,3,4,-thiatriazoles rather than the isomeric open chain thiocarbamyl azides. The C==S, NC==S, and cyclic NN==N configurational assignments, which are of importance to the classes of compounds studied, are discussed. |
doi_str_mv | 10.1139/v58-118 |
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N. R ; Pillai, C. N ; Ramachandran, J ; Hites, Ralph D</creator><creatorcontrib>Lieber, Eugene ; Rao, C. N. R ; Pillai, C. N ; Ramachandran, J ; Hites, Ralph D</creatorcontrib><description>The infrared absorption spectra of 4-substituted-thiosemicarbazides, 5-(substituted)amino-1,2,3,4-thiatriazoles, and the corresponding isomeric tetrazolinethiones have been studied and structural assignments of importance to these systems made or suggested. Important conclusions drawn from the spectral data are: there is no suggestion of any thiol-thione tautomerism for the solid 4-substituted-thiosemicarbazides and that the thione structure predominates for these substances; that the so-called 5-thiol-tetrazoles also exist as thiones; and that the diazotization products of the 4-substituted-thiosemicarbazides yield 1,2,3,4,-thiatriazoles rather than the isomeric open chain thiocarbamyl azides. 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Important conclusions drawn from the spectral data are: there is no suggestion of any thiol-thione tautomerism for the solid 4-substituted-thiosemicarbazides and that the thione structure predominates for these substances; that the so-called 5-thiol-tetrazoles also exist as thiones; and that the diazotization products of the 4-substituted-thiosemicarbazides yield 1,2,3,4,-thiatriazoles rather than the isomeric open chain thiocarbamyl azides. 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Important conclusions drawn from the spectral data are: there is no suggestion of any thiol-thione tautomerism for the solid 4-substituted-thiosemicarbazides and that the thione structure predominates for these substances; that the so-called 5-thiol-tetrazoles also exist as thiones; and that the diazotization products of the 4-substituted-thiosemicarbazides yield 1,2,3,4,-thiatriazoles rather than the isomeric open chain thiocarbamyl azides. The C==S, NC==S, and cyclic NN==N configurational assignments, which are of importance to the classes of compounds studied, are discussed.</abstract><cop>Ottawa, Canada</cop><pub>NRC Research Press</pub><doi>10.1139/v58-118</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
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title | THE INFRARED SPECTRA OF 4-SUBSTITUTED-THIOSEMICARBAZIDES AND DIAZOTIZATION PRODUCTS |
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