Abstract
High-pressure deuterium solid state NMR techniques have been used to study pyridine-d 5 intercalated CdPS 3. The effect of host compression on the dynamics of the intercalated molecule was observed. Deuterium powder pattern lineshapes were collected at four isotherms (270 K, 300 K, 330 K, 360 K) and at pressures up to 4500 kbar. The application of pressure to the intercalated lamellar host material caused a suppression of the large-amplitude reorientational motion seen for the pyridine molecule at room temperature. As expected, with increasing isothermal temperatures higher pressures were required to freeze out the rotational diffusion of the pyridine. Our results show that an increase in pressure acts much like a decrease in temperature for the motional dynamics of an intercalated molecule.
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