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Issue 23, 2014
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Effective catalytic disproportionation of aqueous H2O2 with di- and mono-nuclear manganese(ii) complexes containing pyridine alcohol ligands

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Abstract

The two novel manganese(II) complexes with 2-hydroxymethylpyridine (2-CH2OHpy) {[Mn2(μ-Cl)2(2-CH2OHpy)4]Cl2·2H2O (1)} and 2-hydroxyethylpyridine (2-(CH2)2OHpy) {[Mn(2-(CH2)2OHpy)2(NCS)2] (2)} were synthesized and characterized by means of X-ray diffraction, IR, EPR, HF EPR spectroscopy, magnetic and TG/DTG data. The complexes show catalase-like activity in neutral aqueous solution since they were able to disproportionate H2O2 to harmless H2O and O2. Both complexes act as true catalysts since they reverted to their original form after depleting all the H2O2, as suggested by the operando resonant inelastic X-ray spectroscopy (RIXS) measurements.

Graphical abstract: Effective catalytic disproportionation of aqueous H2O2 with di- and mono-nuclear manganese(ii) complexes containing pyridine alcohol ligands

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Supplementary files

Article information


Submitted
21 Nov 2013
Accepted
12 Dec 2013
First published
13 Dec 2013

Dalton Trans., 2014,43, 8599-8608
Article type
Paper
Author version available

Effective catalytic disproportionation of aqueous H2O2 with di- and mono-nuclear manganese(II) complexes containing pyridine alcohol ligands

M. Zienkiewicz, A. Jabłońska-Wawrzycka, J. Szlachetko, Y. Kayser, K. Stadnicka, W. Sawka-Dobrowolska, J. Jezierska, B. Barszcz and J. Sá, Dalton Trans., 2014, 43, 8599
DOI: 10.1039/C3DT53288G

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