Synthesis, characterization, and X-ray structures of diphenyltin(IV) N-(2-hydroxyacetophenone)glycinate, its 1:1 adduct with triphenyltin(IV) chloride, and related systems

The compound [Ph2Sn(2-OC6H4C(CH3)=NCH2COO)], 1, shows a distorted trigonal-bipyramidal geometry in the solid state. Reaction of 1 with Ph3SnCl yields a 1:1 adduct in which the two tin atoms are joined via the carbonyl atom of the ligand in 1 to form a mixed diorgano/triorgano species. NMR data indicate that the 1:1 adduct dissociates in noncoordinating solvent. Similarly, [(Bu2Sn)-Bu-t(2-OC6H4C( CH3)=NCH2COO)(Bu2SnCl2)-Bu-.t], which has been characterized crystallographically in the solid state, is dissociated in solution. In contrast to the above behavior, monomeric [Vin(2)Sn(2-OC6H4C(CH3)=NCH2COO)] forms an adduct with a water molecule to yield [Vin(2)Sn(2-OC6H4C(CH3)=NCH2COO)OH2] in the solid state.