Monoorganylbismuth compounds with Bi-S bonds

In contrast to the bismuthines with the Bi-0 bond, these organylbismuth dithiolates are soluble in common organic solvents and insensitive to moisture. However, they are thermally unstable and decompose easily above melting point. They also decompose slowly in daylight [76ZAAC(423)47]. 

Eight-membered heterocyclic compounds are prepared by the reaction of MeBi(OEt)2 or PhBi(OEt)2 with bis(2-mercaptoethyl) sulfide and bis(2-mercaptoethyl) ether in EtOH at low temperatures. Using this method, bismocanes 4-7 are obtained as yellow crystals in good yields 

By the reaction between Bi(SPh)3 and a carbon-centered radical R, generated by decarboxylation of thiohydroxamate esters (the Barton reaction), an organylbismuth dithiolate can be prepared a 1 2 mixture of 3-(3,3-diphenyl- 

Me3C(iH2Bi(S2PPh2)2 has shown that its crystals consist of discrete monomeric molecules, which possess a symmetry plane containing the 

6- trimethylphenyl (mesityl) group and bismuth atom. Due to the through-space interaction between the bismuthand S atoms, the bismuth center possesses a square-pyramidal geometry [94JOM(470)93]. 

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