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- [29] PREPARATION AND PROPERTIES OF NOVEL SULFUR HETEROCYCLES FROM THE REACTION OF 4,5-DISUBSTITUTED 2-LITHIO-1,3-DITHIOLES WITH CARBON-DISULFIDE AND X-RAY CRYSTALLOGRAPHIC STRUCTURE OF 2-(4,5-DIMETHYL-1,3-DITHIOLYLIDENE)-5,6-DIMETHYL-2,3-DIHYDRO-1,4-DITHIINE-3-THIONE JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1, 1988, (10): : 2751 - 2755