Journal article

Paratropic delocalized ring currents in flattened cyclooctatetraene systems with bond alternation

PW Fowler, RWA Havenith, LW Jenneskens, A Soncini, E Steiner

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | WILEY-V C H VERLAG GMBH | Published : 2002

Abstract

Despite considerable bond alternation, the planar cyclooctatetraene (COT) moiety in tetrakis(bicyclo[2.1.1]hexeno)cyclooctatetraene (1(D4h)) sustains a strong central paratropic ring current, as expected of an antiaromatic monocycle. The paratropic ring current of the COT moiety can be switched on or off by tuning the rotationally allowed COT HOMO-LUMO transition, for example, by choosing saturated or unsaturated clamps.

University of Melbourne Researchers