1.3- Dithiolium salts chemical properties

Until a few years ago, however, the cations 1 and 2 had aroused little interest. In 1947 Liittringhaus and Bottcher2 recognized the products of the reaction of l,2-dithiole-3-thiones ( trithiones ) with alkyl esters of inorganic acids as 3-alkylmercapto derivatives of the 1,2-dithiolium system these authors explained certain apparently unusual physical and chemical properties of these salts by resonance stabilization of the 1,2-dithiolium system.8 Thus these trithionium salts were the first derivatives of the 1,2-dithiolium ion to be identified with certainty. 

Many convenient routes to 1,3-dithiolium salts have been developed. Chemical properties of these salts have been actively studied, especially their behavior toward nucleophilic reagents. 

Physical and Chemical Properties.—It has been shown that charge-transfer complexes of 1,2-dithiolium cations with TCNQ have conductivities comparable with, but smaller than, those of analogous 1,3-dithiolium salts. 

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See also in sourсe #XX -- [ , ]

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