Survival and extinction of delocalized ring currents in clamped benzenes.
Direct visualisation of induced current density in clamped benzenes 1-4 distinguishes between saturated clamping groups, for which the central benzene ring retains a conventional diamagnetic ring current, and strongly interacting, unsaturated clamps, for which the central ring supports only the localised circulations expected of a 1,3,5-cyclohexatriene with fully fixed double bonds.
Fowler
P W
PW
School of Chemistry, University of Exeter, Stocker Road, Exeter, UK EX4 4QD. P.W.Fowler@exeter.ac.uk
Havenith
R W
RW
Jenneskens
L W
LW
Soncini
A
A
Steiner
E
E