Reinvestigation of the structure of the trimethyltin chloride 2,2′-bipyridine adduct

Abstract

The structure of the complex, (CH 3) 3SnCl·bipy, was determined in the solid state using infrared and Mössbauer spectroscopies and in solution using the proton magnetic resonance spectrum recorded in CCl 4. The infrared and Mössbauer spectra indicated that, in the solid, the complex is a trigonal bipyramidal structure with coplanar methyl groups based on the quadrupole splitting values and the absence of the SnC symmetric vibration in the infrared spectrum. Upon dissolving in CCl 4, the structure is altered. The 1H NMR spectrum indicated that dissociation occurred upon dissolution based on the low value of the tin methyl hydrogen coupling constant.