Jump to main content
Jump to site search


A dimanganese(III) porphyrin dication diradical and its transformation to a μ-hydroxo porphyrin–oxophlorin heterodimer

Author affiliations

Abstract

We investigate here the effect of electronic communication between two Mn(III) porphyrin π-cation radicals, connected covalently through an ethylene bridge, which exhibit significant electronic communication resulting in strong antiferromagnetic coupling predominantly between two porphyrin radical spins. This, however, is in sharp contrast to its diiron(III) analog where the porphyrin π-cation radical undergoes stronger antiferromagnetic coupling predominantly with the corresponding Fe(III) unpaired spin. Such a difference in the spin coupling model has also influenced their reactivity. While the dimanganese(III) dication diradical complex quickly transforms into a μ-hydroxo dimanganese(III) porphyrin–oxophlorin heterodimer upon addition of a base, its diiron(III) analog remains very stable.

Graphical abstract: A dimanganese(iii) porphyrin dication diradical and its transformation to a μ-hydroxo porphyrin–oxophlorin heterodimer

Back to tab navigation

Supplementary files

Publication details

The article was received on 26 Nov 2018, accepted on 07 Jan 2019 and first published on 08 Jan 2019


Article type: Communication
DOI: 10.1039/C8CC09366K
Citation: Chem. Commun., 2019, Advance Article
  •   Request permissions

    A dimanganese(III) porphyrin dication diradical and its transformation to a μ-hydroxo porphyrin–oxophlorin heterodimer

    A. Kumar, D. Sil, M. Usman and S. P. Rath, Chem. Commun., 2019, Advance Article , DOI: 10.1039/C8CC09366K

Search articles by author

Spotlight

Advertisements