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Stepwise synthesis of peripherally dimetallated metallo-tetraazaporphyrins with linear and bent motifs

Kumar, R. and Kumar, A. and Prasad, Rajendra (2007) Stepwise synthesis of peripherally dimetallated metallo-tetraazaporphyrins with linear and bent motifs. Transition Metal Chemistry, 32 (8). pp. 1091-1095. ISSN 0340-4285

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Abstract

Two new dinuclear and two new trinuclear complexes of 2,3,7,8,12,13,17,18-octakis(methylthio)tetraazaporphyrinatomagnesium(II), [Mg(OMTTAP)] were synthesized using a convenient stepwise process. These complexes possess (bpy)2RuII and Cp(PPh3)RuII metal moieties directly attached to the β-positions in the [Mg(OMTTAP)] through thioether chelation. Complexes were characterized using 1H-n.m.r., u.v.–vis and mass spectroscopic data. The peripheral binding of the two RuII units significantly influenced redox potentials of the OMTTAP core by lowering E1/2 for the OMTTAP centered oxidation and reduction processes, both, as evident from their cyclic voltammograms. The stepwise synthesis reported here demonstrates success of a convenient strategy to obtain hybrid, trimetallic, redox active chromophores with linear and bent motifs.

Item Type: Journal Article
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Science, Technology and Environment (FSTE) > School of Biological and Chemical Sciences
Depositing User: Ms Mereoni Camailakeba
Date Deposited: 11 Nov 2007 13:58
Last Modified: 11 Jul 2012 17:19
URI: http://repository.usp.ac.fj/id/eprint/730
UNSPECIFIED

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