Synthesis and characterization of organotin Schiff base chelates

The synthesis and characterization of five organotin compounds containing Salophen(tBu) [Salophen(tBu)=N,N′-phenylene-bis(3,5-di-tert-butylsalicylideneimine)], Salomphen(tBu) [Salomphen(tBu)=N,N′-(4,5-dimethyl)phenylene-bis(3,5-di-tert-butylsalicylideneimine)] and Phensal(tBu) [Phensal(tBu)=3,5-di-tert-butylsalicylidene(1-aminophenylene-2-amine)] ligands is described. These compounds include the monomeric complexes LSnCl2 (where L=Salophen(tBu), L=Salomphen(tBu)), L(nBu)SnCl (where L=Salophen(tBu), Salomphen(tBu)), L(nBu)SnCl2 (where L=Phensal(tBu)). Spectroscopic techniques including 119Sn NMR and X-ray crystallography were used in the characterization of the compounds.