STRUCTURAL DETERMINATION OF SUBSTITUTED MERCAPTOTHIADIAZOLES USING FT-RAMAN AND FT-IR SPECTROSCOPY

被引：71

作者：

EDWARDS, HGM

JOHNSON, AF

LAWSON, EE

机构：

[1] University of Bradford, Bradford

来源：

JOURNAL OF MOLECULAR STRUCTURE | 1995年 / 351卷

关键词：

D O I：

10.1016/0022-2860(94)08485-Z

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The FT-Raman and FT-IR spectra of 2,5-dimercapto-1,3,4-thiadiazole (DMTD), 5-methyl-1,3,4-thiadiazole-2-thiol (MMTD) and 5-amino-1,3,4-thiadiazole-2-thiol (AMTD) are reported and vibrational assignments are made. The spectroscopic study reveals that the thiol groups of these molecules participate in a thiol-thone tautomeric equilibrium. DMTD exists mainly as a dithiol whereas MMTD and AMTD exist as thiones at ambient temperature.

引用

页码：51 / 63

页数：13

共 23 条

[1] INFRARED AND RAMAN-SPECTROSCOPIC STUDIES OF THE AMINO IMINO TAUTOMERISM IN 2-SUBSTITUTED 4,4-PENTAMETHYLENE-5-AMINO-4H-IMIDAZOLE DERIVATIVES .2. [J].

AVENDANO, C ;

RAMOS, MT ;

BELLANATO, J .

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 1985, 41 (1-2) :109-114

[2]

Bellamy L.J., 1975, INFRARED SPECTRA COM

[3] CRYSTAL AND MOLECULAR-STRUCTURE OF 2,4,4-TRISUBSTITUTED 5-AMINO-4H-IMIDAZOLES [J].

BELLANATO, J ;

AVENDANO, C ;

RAMOS, MT ;

SMITHVERDIER, P ;

FLORENCIO, F ;

GARCIABLANCO, S .

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 1985, 41 (1-2) :99-107

[4]

CARDIS AB, 1989, Patent No. 4846984

[5] INFRARED AND RAMAN SPECTRA OF 1,3,4-THIADIAZOLE AND SOME OF ITS ISOTOPIC SPECIES - VIBRATIONAL ASSIGNMENT [J].

CHRISTENSEN, DH ;

STROYERH.T .

SPECTROCHIMICA ACTA PART A-MOLECULAR SPECTROSCOPY, 1970, A 26 (10) :2057-+

[6]

DAVIS RH, 1992, Patent No. 7841

[7]

FARNG LO, 1992, Patent No. 5137649

[8]

FRANGATOS G, 1987, Patent No. 4661273

[9]

Gemmill R. M., 1986, U. S. Patent, Patent No. [4,584,114, 4584114]

[10]

HORODYSKY AG, 1980, Patent No. 4193883

← 1 2 3 →