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Terpyridine-fused polyaromatic hydrocarbons generated via cyclodehydrogenation and used as ligands in Ru(II)

Angelika Graczyk1, Frances A Murphy, Deanne Nolan

  • 1School of Chemistry, Trinity College Dublin, Dublin 2, Ireland.

Dalton Transactions (Cambridge, England : 2003)
|May 25, 2012
PubMed

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Cycloheptatriene is a neutral monocyclic unsaturated hydrocarbon that consists of an odd number of carbon atoms and an intervening sp3 carbon in the ring. The three double bonds in the ring correspond to 6 π electrons, which is a Huckel number, and therefore satisfies the criteria of 4n + 2 π electrons. However, the intervening sp3 carbon disrupts the continuous overlap of p orbitals. As a result, cycloheptatriene is not aromatic.
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