Charge-Transfer Complexations of Oxidative Coupling Products of Carbazole with TCNE and P-Chloranil

Erol Asker, Fahrettin Filiz, Ece Uzkara, Orhan Zeybek


Charge-transfer (CT) complexations of 9H-carbazole (Cz), 9,9’-dicarbazyl (DCz), 3,9’;9,9’’-tricarbazyl (TCz), and polycarbazyl (PCz) with p-acceptors tetracyanoethylene (TCNE) and p-chloranil (p-CHL) were investigated spectroscopically.  The relative stabilities, thermodynamic properties and stoichiometries of the CT complexes were discussed based on the molecular structure of the donor molecules and relative electron affinities of the acceptor molecules.  It is concluded that DCz, TCz, and PCz form less stable complexes with TCNE and p-CHL than their monomeric analogues Cz.  

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