Abstract

The deuterium quadrupole coupling constant in deuterochloroform was determined in an inert solvent (C6H12) and in polar solvents (neat liquid, C6H6, and THF), by combining NMR relaxation data with Raman line shape analysis of the ν1 band (2253 cm−1) of deuterochloroform. The QD value in a 20 mol % solution of CDCl3 in C6H12 was found to be (186±4 kHz), significantly higher than any previously reported value obtained in liquid crystals. A substantial lowering of the quadrupole coupling constant was observed in polar solvents.

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