The NMR effects produced on the nitrogen absolute shieldings is a series of
electron donors when they interact with hexafluorobenzene, C6F6, have been
theoretically studied. The complexes have been optimized at the B3LYP/6-31
1++G** level and the NMR shieldings have been calculated using the GIAO met
hod. The results obtained have allowed devising an experiment (C6F6. . . NC
CH3 complex) that is compatible with the theoretical calculations.