Affiliation:
1. Perm University, Perm. 614600 Russia
Abstract
Abstract
By 35Cl NQR the temperature dependences of the resonance frequencies and spin-lattice relaxation times for the 35Cl nuclei have been studied in solid CCl3COHal (Hal = F, CI, Br, I). A linear correlation between the average 35Cl NQR frequencies of the CCl3 groups and the electronegativities of the halogen atoms in the COHal groups has been discovered. The temperature-dependent NQR data reveal thermoactivated reorientations of the CCl3COHal molecules as a whole in the crystal lattice. The activation energies of this motion are found to lie in the range 31 - 37 kJ mol - 1
Subject
Physical and Theoretical Chemistry,General Physics and Astronomy,Mathematical Physics
Cited by
4 articles.
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