Intramolecularly coordinated organotin(IV) sulphides and their reactivity to iodine

Organotin(IV) sulphides (LSnPhS)2 and (LSnPh2)2S containing O,C,O chelating ligand (L = 2,6-(tBuOCH2)2C6H3−) were prepared by the reaction of parent organotin chlorides with Na2S · 9H2O. These compounds react with I2 to organotin iodides LSnPhI2 and LSnPh2I. Triorganotin iodide LSnPh2I was shown to react with additional molecule of I2 forming ionic organotin compound [LSnPh2]+I3−.