The above systems are examples of the effect bond-length alternation and connectivity has on the path of the current through small cyclic molecules. This strategy is possible in many synthetically realistic molecules, but as we have shown there are several challenges to applying it. For example, in cyclooctatetraene derivatives, which inherently have strong bondlength alternation, the current density is very turbulent and does not produce a clear ring current -perhaps due to the bent shape of the ring structure. We have also tested helicene molecules, where the current may follow the helical through-bond path through the molecule.