35Cl NQR study of CCl3 reorientations in the carbonyl-containing derivatives of 3,3,3-trichloropropene |
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Authors: | A. D. Gordeev I. A. Kyuntsel V. A. Mokeeva G. B. Soifer V. V. Shchepin |
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Abstract: | Temperature dependences of35Cl NQR frequencies and spin-lattice relaxation times were measured for the CCl3 groups of compounds CCl3CH=CHR and CCl3CH=CR2 with R=COCH3 and COOCH3. The activation energies of CCl3 reorientations reflect the significant contribution of intermolecular steric interactions to the value of the potential barrier hindering these reorientations. In the CCl3CH=CHCOCH3 crystal, the reorientations of the CCl3 group are hindered more than those of the molecule as a whole. Perm State University. Translated fromZhurnal Strukturnoi Khimii, Vol. 35, No. 2, pp. 54–60, March–April, 1994. Translated by L. Smolina |
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