Translational and rotational mobility of methanol-d4 molecules in NaX and NaY zeolite cages: A deuteron NMR investigation

► Diverse mobility of methanol molecules in NaX and NaY zeolites. ► Isotropic reorientation of methanol trimers. ► Translation to reorientation transition. ► Horizontal and vertical positions of methanol molecules at the zeolite framework at low temperature.