Study of the reaction of tetramethyltin with Hβ zeolite

The grafting reaction of SnMe4 on the surface of Hβ zeolite (Si/Al = 25.0) was studied under high vacuum conditions. The chemical compositions and structure of the resulting solid were characterized by in situ FTIR, ICP, XRD, XPS, 13C and 119Sn MAS NMR, UV–Vis DRS, gas phase chromatogram (GC), chemical analyses, temperature programmed decomposition (TPD), temperature programmed reduction (TPR), and N2 adsorption at low temperature. The results showed that SnMe4 reacts with Hβ zeolite quantitatively at temperature as low as 183 K and the reaction occurred on the surface of the zeolite without destroying the framework of zeolite. The BET surface area and the pore volume of the zeolite decreased and the surface properties changed, however the microporous structure was retained upon the reaction and post treatment.