Issue 7, 2003
From the journal:

Chemical Communications

Isolation of the first ferromagnetically coupled Mn(iii/iv) complex†

T. M. Rajendiran,a   Martin L. Kirk,*b   Ika A. Setyawati,a   M. Tyler Caudle,a   Jeff W. Kampfa  and  Vincent L. Pecoraro*a  

* Corresponding authors

a Department of Chemistry, University of Michigan, Ann Arbor, Michigan, USA
E-mail: Vlpec@umich.edu

b Department of Chemistry, University of New Mexico, Albuquerque, New Mexico, USA

Abstract

Binuclear manganese complexes Mn2(III/IV)(dtsalpn)2DCBI, 1, Mn2(III/III)(dtsalpn)2HDCBI, 2, containing the ligand dicarboxyimidazole (DCBI) have been prepared in order to address the issue of imidazole bridged and ferromagnetically coupled Mn sites in high oxidation states of the OEC in Photosystem II (PS II). Temperature dependent magnetic susceptibility studies of 1 indicates that the interaction between the two Mn(III)/Mn(IV) ions is ferromagnetic (J = + 1.4 cm−1). Variable temperature EPR spectra of 1 shows that a g = 2 multiline is as an excited state signal corresponding to S =1/2.

Graphical abstract: Isolation of the first ferromagnetically coupled Mn(iii/iv) complex

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Article information

DOI
https://doi.org/10.1039/B212684M
Article type
Communication
Submitted
20 Dec 2002
Accepted
29 Jan 2003
First published
05 Mar 2003

Chem. Commun., 2003, 824-825

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Isolation of the first ferromagnetically coupled Mn(III/IV) complex

T. M. Rajendiran, M. L. Kirk, I. A. Setyawati, M. T. Caudle, J. W. Kampf and V. L. Pecoraro, Chem. Commun., 2003, 824 DOI: 10.1039/B212684M

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