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Metal ions in molecular association of porphyrins

Krishnan, V (1984) Metal ions in molecular association of porphyrins. In: Journal of chemical sciences, 93, Nu (4). pp. 767-783.

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Abstract

Molecular association of porphyrins and their metal derivatives has been recognized as one of the important properties for many of their biological functions. The association is classified into (i) self-aggregation, (ii) intermolecular association and (iii) intramolecular association. The presence of metal ions in the porphyrin cavity is shown to alter the magnitudes of binding constants and thermodynamic parameters of complexation. The interaction between the porphyrin unit and the acceptor is described in terms of π-π interaction. The manifestation of charge transfer states both in the ground and excited states of these complexes is shown to influence the rates of excited state electron transfer reactions. Owing to paucity of crystal structure data, the time-averaged geometries of many of these complexes have been derived from magnetic resonance data.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to Indian academy of sciences.
Keywords: Metalloporphyrins - molecular association - charge transfer states; intramolecular interactions; intermolecular interactions; porphyrins
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 20 Jan 2010 12:12
Last Modified: 19 Sep 2010 05:45
URI: http://eprints.iisc.ernet.in/id/eprint/23242

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