THIAZOLE COMPLEXES OF DIORGANOTIN(IV) DIHALIDES - THE CRYSTAL-STRUCTURE OF DICHLORODIPHENYLBIS(THIAZOLE)TIN(IV)

The reaction of thiazole (Tz) with diorganotin(IV) dihalides yielded c ompounds of type [SnR(2)X(2)(Tz)(2)] (R = Me, Et, Ph; X = Cl, Pr). The structure of dichlorodiphenylbis(thiazole)tin(IV) was determined by X -ray diffraction. The crystals are monoclinic (space group P2(1)/c) an d consist of discrete trans-SnPh(2)Cl(2)(Tz)(2) units with the metal a tom coordinated to two Cl atoms, two phenyl carbons, and the N atoms o f two thiazole rings. Mossbauer and IR spectra suggest similar trans-s tereochemistry for the other complexes prepared. The behavior of these compounds in solution was studied by conductimetry and NMR techniques .