Abstract
An overview of the redox chemistry of fullerenes, of tris-bipy cryptates, and of tris-bipy transition metal complexes with bipy ligands is presented. The focus is directed at the preparation of novel crystalline materials upon cathodic electrocrystallization of some of these compounds. The unifying theme behind these seemingly unrelated systems is the formation of solid-state materials containing an organic network which has well defined cationic binding centers. The organic network is able to conduct electrons. Recent ESR data are presented that show that reduction electrons are delocalized over the three bipy units in reduced tris-bipy cryptates. The process of electron “hopping” in these complexes is thermally activated, with an Ea value of ~2 kJ/mol. An example of a novel crystalline semiconductor is presented, [Ru(binap-2)3](PF6), which has a band gap value of 0.53 eV. Another new single crystalline material is described, [Ru(bipy)3]°, and it is shown that it exhibits metallic conductivity.
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Echegoyen, L., Perez-Cordero, E. (1994). Redox Chemistry of Metal Ion Complexes: Preparation of New Materials. In: Fabbrizzi, L., Poggi, A. (eds) Transition Metals in Supramolecular Chemistry. NATO ASI Series, vol 448. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-8380-0_6
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DOI: https://doi.org/10.1007/978-94-015-8380-0_6
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