Elsevier

Polyhedron

Volume 7, Issue 8, 1988, Pages 589-596
Polyhedron

The electrochemistry of thiocarbonyl and selenocarbonyl iron octaethylporphyrins

https://doi.org/10.1016/S0277-5387(00)80363-0Get rights and content

Abstract

The redox reactivity of thiocarbonyl(2,3,7,8,12,13,17,18-octaethylporphinato) iron(II) and selenocarbonyl(2,3,7,8,12,13,17,18-octaethylporphinato)iron(II) was investigated in both non-coordinating and coordinating media at a Pt electrode. Electro-oxidation of both complexes occurred in three discrete, single electron transfer steps with complete retention of the diatomic ligands. Reaction of each porphyrin with a series of nitrogenous bases produced exceptionally stable six-coordinate complexes which could also be oxidized or reduced without loss of the diatomic ligand. Based on the results of detailed spectral (both infrared and electronic), voltammetric and spectroelectrochemical experiments, an electron transfer pathway is proposed.

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