Journal ArticleDOI
Oxidation of metal tetraphenylporphyrins
Nilton Carnieri,Anthony Harriman +1 more
TLDR
In this article, absorption spectra for a series of metalloporphyrin π-radical cations produced by chemical oxidation in CH2Cl2 were reported and a good correlation between the energies of the first spin-allowed transitions for the π radical cation and for the parent porphrin was found.About:
This article is published in Inorganica Chimica Acta.The article was published on 1982-01-01. It has received 46 citations till now. The article focuses on the topics: Absorption spectroscopy & Paramagnetism.read more
Citations
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Journal ArticleDOI
Intramolecular Electron Transfer Reactions Observed for Dawson-Type Polyoxometalates Covalently Linked to Porphyrin Residues
Anthony Harriman,Kristopher J. Elliott,Mohammed A. H. Alamiry,Loïc Le Pleux,Marjorie Séverac,Yann Pellegrin,Errol Blart,Céline Fosse,Caroline Cannizzo,Cédric R. Mayer,Fabrice Odobel +10 more
TL;DR: In this article, photoactive, multicomponent supermolecules have been synthesized and characterized whereby a porphyrin unit is covalently linked to a Dawson-type heteropolyphosphotungstate (POM).
Journal ArticleDOI
Effects of central metal ion (Mg, Zn) and solvent on singlet excited-state energy flow in porphyrin-based nanostructures
Feirong Li,Steve Gentemann,William A. Kalsbeck,Jyoti Seth,Jonathan S. Lindsey,Dewey Holten,David F. Bocian +6 more
TL;DR: In this article, the photodynamic behavior of Porphyrin-based nanostructures was compared with Zn-porphyrins and Mg-Porphyrins.
Journal ArticleDOI
Long-range electron transfer in porphyrin-containing [2]-rotaxanes: tuning the rate by metal cation coordination.
Mikael Andersson,Myriam Linke,Jean Claude Chambron,Jan Davidsson,V. Heitz,Leif Hammarström,Jean-Pierre Sauvage +6 more
TL;DR: The results show the possibility to tune the rates of electron transfer between noncovalently linked reactants by a convenient modification of the link and the different effect of Ag+ and Cu+ on the rate shows an additional possibility to control the electron-transfer reactions by selective excitation.
Journal ArticleDOI
A porphyrin–polyoxometallate bio-inspired mimic for artificial photosynthesis
Kristopher J. Elliott,Anthony Harriman,Loïc Le Pleux,Yann Pellegrin,Errol Blart,Cédric R. Mayer,Fabrice Odobel +6 more
TL;DR: A multi-porphyrin cluster has been covalently attached to a polyoxometallate catalyst so as to form an advanced model for the photosynthetic reaction complex to display efficient energy transfer from the peripheral zinc porphyrins to the central free-base porphyrsin.
Journal ArticleDOI
Electrosynthesis and characterization of symmetrical and unsymmetrical linear porphyrin dimers and their precursor monomers
TL;DR: In this paper, the synthesis of linear symmetrical octaethylporphyrin−octaethyl porphrin and unsymmetrical tetraphenylporphrin−Octaethylporphyrin dimeric porphyrins with one viologen as a spacer is described.
References
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Journal ArticleDOI
400. The determination of the paramagnetic susceptibility of substances in solution by nuclear magnetic resonance
Journal ArticleDOI
pi-Cation radicals and dications of metalloporphyrins.
TL;DR: It is concluded that the ground-state symmetries of ZnTPP+ and MgOEP+ are, respectively, 2AZu and 2A1u of the D4h point group, and a radical may occupy either of two close-lying ground states.
Journal ArticleDOI
Compounds I of Catalase and Horse Radish Peroxidase: π-Cation Radicals
TL;DR: It is proposed that these Compounds I contain a pi-cation radical of the heme prosthetic group, which explains the oxidation level, optical spectra, and stability of the primary compounds without recourse to properties such as stoichiometric mixtures of special porphyrins, stable Fe(V) porphyrs, or unique conformers of heme porphirins.
Related Papers (5)
Electrochemical and electron paramagnetic resonance studies of metalloporphyrins and their electrochemical oxidation products.
Alexander Wolberg,Joost Manassen +1 more