Abstract
35Cl nuclear quadrupole resonance measurements on thiourea-CCl4 inclusion complex yielded two resonance lines with intensity ratio 1:3. This indicates that the guest CCl4 molecule occupies the three-fold symmetry site in the channel formed by the thiourea framework. The resonance frequencies closely follow Bayer's equation between 4.2 K and 27 K. At higher temperatures the resonance lines faded out. This is attributed to the onset of reorientation of the CCl4 molecule. The activation energy for this motion was estimated to be 6 kJ mol-1 .
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