Thermal properties of some di(4-substituted phenyl)tin dichloride complexes with nitrogen donor ligands

The thermal properties of some organotin complexes of general structure (4-ZC₆H₄)₂SnCl₂.L₂ (Z=Me, CF₃, F, Cl, OMe and H; L₂ = 2,2′ -bipyridyl and 4,4′ -dimethyl-2,2′ -bipyridyl) are reported. The thermal data obtained by Differential Thermal Analysis (DTA) for these complexes is reported. Thermal decomposition experiments for some of the complexes are described and indicate a disproportionation of the complexes into the aryltin trichloride complex and the triaryltin chloride. The controlled decomposition provides a possible alternative preparative route to some aryltin trichloride complexes.