USE OF LEAD BIS(BUTYLTHIOLATE) COMPOUNDS IN A NEW LOW-TEMPERATURE ROUTE TO HIGHLY CRYSTALLINE LEAD SULFIDE - IDENTITY AND SOURCE OF REACTION BY-PRODUCTS

Highly crystalline lead sulfide has been prepared by the thermolyses o f compounds of the general formula Pb(SR)2. Three isomeric lead bis(bu tylthiolate) compounds have been isolated and characterized by IR, H-1 NMR, and elemental analyses. Their solid-state decomposition, as well as their thermolysis in suspension in a refluxing hydrocarbon, has be en studied. Decomposition has been carried out at temperatures as low as 190-degrees-C. XRPD patterns and SEM micrographs of the obtained Pb S are discussed. Elemental analysis and ESCA data indicate the presenc e of highly pure PbS. All gaseous byproducts have been isolated and id entified, and the origins of their chemical production have been locat ed.