Literature DB >> 24406400

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

M Zienkiewicz1, A Jabłońska-Wawrzycka, J Szlachetko, Y Kayser, K Stadnicka, W Sawka-Dobrowolska, J Jezierska, B Barszcz, J Sá.   

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.

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Year:  2014        PMID： 24406400     DOI： 10.1039/c3dt53288g

Source DB:  PubMed          Journal:  Dalton Trans        ISSN： 1477-9226            Impact factor:   4.390


  5 in total

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5.  Synthesis and Structure of Novel Copper(II) Complexes with N,O- or N,N-Donors as Radical Scavengers and a Functional Model of the Active Sites in Metalloenzymes.

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