Issue 23, 2014
From the journal:

Dalton Transactions

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

M. Zienkiewicz,a   A. Jabłońska-Wawrzycka,a   J. Szlachetko,bc   Y. Kayser,b   K. Stadnicka,d   W. Sawka-Dobrowolska,e   J. Jezierska,e   B. Barszcz*a  and  J. Sá*b  

* Corresponding authors

a Institute of Chemistry, Jan Kochanowski University in Kielce, 15G Świętokrzyska Str., 25-406 Kielce, Poland
E-mail: barbara.barszcz@ujk.edu.pl

b Paul Scherrer Institute (PSI), 5232 Villigen, Switzerland
E-mail: jacinto.sa@psi.ch
Tel: +41 563102910

c Institute of Physics, Jan Kochanowski University in Kielce, 25-406 Kielce, Poland

d Faculty of Chemistry, Jagiellonian University, 3 Ingardena Str., 30-060 Kraków, Poland

e Faculty of Chemistry, University of Wrocław, 14 F. Joliot-Curie Str., 50-383 Wrocław, Poland

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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Article information

DOI
https://doi.org/10.1039/C3DT53288G
Article type
Paper
Submitted
21 Nov 2013
Accepted
12 Dec 2013
First published
13 Dec 2013

Dalton Trans., 2014,43, 8599-8608

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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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