| Abstract: | Synthesis and Spectroscopic Studies of Di-t-butyltin(IV) dicarboxylates Five Di-t-butyltin(IV) dicarboxylates t-Bu2Sn(O2CR)2 (R ? CH3, C(CH3)3, C6H5, C6H4NH2-2, C5H4N-2) have been synthesized by reaction of Di-t-butyltinoxide (t-Bu2SnO)3 with corresponding ligands and studied by 1H-, 13C-, 119Sn n.m.r. and infrared spectroscopy. The compounds are monomeric in CD2Cl2- or CDCl3-solution and have pentacoordinated tin atoms with exception of the picolinate. The coordination takes place through the carboxylic oxygen atoms. In the Di-t-butyltin(IV)di-2-picolinate the tin atom is hexacoordinated by intramolecular tin-nitrogen-interaction. |
