SN-119 AND C-13 NMR SPECTRAL STUDY OF SOME VINYLTIN(IV) COMPOUNDS INVOLVING THE SN-S BOND

The C-13 and Sn-119 NMR spectra were examined for two series of vinylt in(IV) compounds involving the Sn-S bond, of general formulas (CH2=CH) nSn(SR)4 - n (n = 0 - 4) and (CH2=CH)nSn(Cl)(SR)3 - n (n = 0 - 3) wher e R = l-C4H9, C(S)N(C2H5)2 or 8-quinolinyl (C9H6N, or SR = 1/2(SCH2CH2 S). Deuteriochloroform and hexadeuteriodimethyl sulfoxide served as no n-coordinating and coordinating solvents, respectively. The C-13 and S n-119 NMR data provided a basis for discussion of the nature and stren gth of the Sn-S bonding, coordination of the central tin atom includin g the shape of the coordination polyhedron, and the ability of the com pounds to form donor-acceptor complexes.