2004 Volume 77 Issue 12 Pages 2179-2183
The conventional interpretation of bond-length equalization gives a misleading picture of the aromaticity on charged π-systems. A charged π-system in general is reluctant to undergo marked bond-length alternation, even if it is antiaromatic with a negative topological resonance energy. The pentalene dication and the C60 decacation are antiaromatic with a modest distortion of the molecular skeleton. Small maximum eigenvalues of the bond–bond polarizability matrices support the absence of second-order double-bond fixation in many charged antiaromatic π-systems.
This article cannot obtain the latest cited-by information.