CHEMICAL-SHIFTS FOR TRITONS IN CHLOROBENZENE, BROMOBENZENE, FLUOROBENZENE AND TOLUENE AS DETERMINED BY TRITIUM NMR-SPECTROSCOPY

Chemical shifts for tritons in chlorobenzene have been measured in the pure compound and in a dilute solution in cyclohexane using a 64 MHz NMR spectrometer. The order of shifts is o>m>p. Triton shifts in pure bromobenzene, fluorobenzene and toluene have also been measured and the influence of CCl4 solvent on the aromatic triton shifts in toluene explored. Complete resolution of the three aromatic triton positions is achieved in pure toluene, but the ortho and para shifts are not resolved in 25% solution in CCl4. Copyright © 1979 Heyden & Son Ltd.