Phenylenes kinetic stability

The determination of the ground-state energies of the [Njphenylenes is of crucial importance in the evaluation of their aromaticity [3] and strain. On the other hand, their frontier orbital separation constitutes a measure of their kinetic stability [123] and is central to organic conductor applications [124]. The excited states of the phenylenes are also of interest for probing the changes in aromaticity that occur... 

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