Mercury complexes thiones

Amino-3-methyl-5-thione-l,2,4-triazole with [HgR(MeCOO)] (R = Me, Ph) gives complexes 186, where coordination occurs via the sulfur and amino nitrogen atoms (93JOM(450)41). In the crystalline state, intermolecular interaction of the mercury site with the endocyclic nitrogen atom of the neighboring unit is also observed. 

Bell et al. [60] have generated two complexes by anodic oxidation of mercury in the presence of a saturated acetonitrile solution of l-methylimidazoline-2(3//)-thione. Their crystalline structure has been analyzed. 

C4H 2OSi, Silane, methoxytrimethyl-, 26 44 CH4N, Propane, 2-isocyant-2-methyl-ruthenium complex, 26 275 C][l,4]-dithiin-2-thione, 26 389 CHfc, 1,3-Cyclopentadiene cobalt complex, 26 191-197, 309 chromium, molybdenum, and tungsten complexes, 26 343 iron complex, 26 232-241 mercury-molybdenum-ruthenium complex, 26 333... 

Sodium hydrosulfide regenerates l,2-dithiole-3-thiones from their mercury(II) chloride complexes. This may be regarded as a nucleophilic attack <66AHC(7)39). 

Conversion of the l,2-dithiole-3-thiones 267 into corresponding 5-alkyl- or 5-arylthio-37/-l,2-dithiol-3-ones in low to moderate yields (18-70%) was acomplished with mercury acetate in glacial acetic acid <2007ARK279>. The yields are not high due to the complexity of the remaining residue. 

Complex formation between metals and l,2-dithiole-3-thiones has long been known. The mercury(II) complex is often used for purification of 1,2-dithiole-3-thiones.1... 

Hadjikakou, S.K., Xanthopoulou, M.N., Hadjiliadis, N. and Kubicki, M. (2003) Synthesis, structural characterisation and study of mercury (II) iodide complexes with the heterocyclic thioamides pyridine-2-thione (pytH) and thiazolidine-2-thione (tzdtH). Crystal structures of [Hgl2(pytH)2] and [Hgl2(tzdtH)2]. Can J Anal Sci Spec, 48 (1), 38-45. 

Photodesulfurization. l,3-DithioIe-2-thiones (2) on irradiation (300 W high pressure mercury lamp) with an equimolar amount of (1) are converted into tetrahydrofulvalenes (3) in 50-75% yield. These products arc of current interest because they form highly conductive charge-transfer complexes with tetracyano-p-quinodimethane. ... 

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