The deuteron magnetic resonance spectra of ethene-d4 sorbed in the zeolite NaY at one molecule/supercage loading level were measured at temperatures between 290 and 78K. From the solid-state patterns at low and the isotropically averaged singlet spectra at high temperatures, the correlation times of the anisotropic rotation around the twofold symmetry axis normal to the molecular plane as well as of the isotropic site-exchange motion were deduced. The intracrystalline diffusion coefficient was given by: D(m2/s) = 3.4 x 10-7exp[-2000/T].

On the Dynamics of Ethene Molecules Sorbed in the Zeolite NaY. R.Burmeister, B.Boddenberg, M.Verfürden: Zeolites, 1989, 9[4], 318-20