A novel single-site manganese(II) complex of a pyridine derivative as a catalase mimetic for disproportionation of H2O2 in water

Małgorzata Zienkiewicz; Jakub Szlachetko; Christian Lothschütz; Maciej Hodorowicz; Agnieszka Jabłońska-Wawrzycka; Jacinto Sá; Barbara Barszcz

doi:10.1039/C3DT50288K

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A novel single-site manganese(ii) complex of a pyridine derivative as a catalase mimetic for disproportionation of H₂O₂ in water†

Małgorzata Zienkiewicz,^a Jakub Szlachetko,*^bc Christian Lothschütz,^d Maciej Hodorowicz,^e Agnieszka Jabłońska-Wawrzycka,^a Jacinto Sá*^b and Barbara Barszcz*^a

Author affiliations

* Corresponding authors

^a Institute of Chemistry, Jan Kochanowski University in Kielce, 15G Świętokrzyska Str., Kielce, Poland
E-mail: basiab@ujk.kielce.pl

^b Paul Scherrer Institute (PSI), 5232 Villigen, Switzerland
E-mail: jakub.szlachetko@psi.ch, jacinto.sa@psi.ch
Tel: +41563102910

^c Institute of Physics, Jan Kochanowski Universityin Kielce, 25-406 Kielce, Poland

^d Syngenta Crop Protection, Münchwilen AG, Breitenloh-5, CH-4333 Muenchwilen, Switzerland

^e Faculty of Chemistry, Jagiellonian University, 30-060 Kraków, Poland

Abstract

A novel single site Mn(II) complex was successfully synthesized and tested in the aqueous disproportionation of hydrogen peroxide. The complex was found to be stable (HR-XAS) and exhibits catalase-like activity in neutral pH. Theoretical calculations suggested a reaction mechanism involving two complexes, changes in metal oxidation state and proton shuttling.

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Article information

DOI: https://doi.org/10.1039/C3DT50288K
Article type: Paper
Submitted: 28 Jan 2013
Accepted: 18 Mar 2013
First published: 18 Mar 2013

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Dalton Trans., 2013,42, 7761-7767

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A novel single-site manganese(II) complex of a pyridine derivative as a catalase mimetic for disproportionation of H₂O₂ in water

M. Zienkiewicz, J. Szlachetko, C. Lothschütz, M. Hodorowicz, A. Jabłońska-Wawrzycka, J. Sá and B. Barszcz, Dalton Trans., 2013, 42, 7761 DOI: 10.1039/C3DT50288K

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Dalton Transactions