Characterization of the Electronic and Molecular Structures of Transition Metal Semiquinone and Catecholate Complexes
type: CreativeWork
description: Quinones interact with transition metal ions in biological electron transfer processes such as photosynthesis and the respiratory electron transport chain. Two types of quinones exist, paraquinones and orthoquinones, however, only transition metal-orthoquinone complexes were studied. Orthoquinones are only known to bond to metals in a (sigma)-fashion through the oxygens. As a family of ligands, orthoquinones utilize three redox active forms when bonding to metals: {M(O)(quinone)}, {M(I) (semiquinone)}, and {M(II)(catecholate)}. The difference between these three formulations is related to the residence of electrons in either metal or ligand orbitals.
abstract: Quinones interact with transition metal ions in biological electron transfer processes such as photosynthesis and the respiratory electron transport chain. Two types of quinones exist, paraquinones and orthoquinones, however, only transition metal-orthoquinone complexes were studied. Orthoquinones are only known to bond to metals in a (sigma)-fashion through the oxygens. As a family of ligands, orthoquinones utilize three redox active forms when bonding to metals: {M(O)(quinone)}, {M(I) (semiquinone)}, and {M(II)(catecholate)}. The difference between these three formulations is related to the residence of electrons in either metal or ligand orbitals.
author: Lynch, Michael William
language: eng
keywords: Chemistry, Inorganic
date published: 2014-12-13T20:11:19Z
date modified: 2026-07-22T22:25:57Z
provider: University of Illinois - Urbana-Champaign
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: University of Illinois at Urbana-Champaign

PropertyValue
property ID: Handle
value: http://hdl.handle.net/2142/67279