title: Effective catalytic disproportionation of aqueous H2O2 with di- and mono-nuclear manganese(II) complexes containing pyridine alcohol ligands.
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.
authors.affiliation: Institute of Chemistry, Jan Kochanowski University in Kielce, 15G Swiętokrzyska Str., 25-406 Kielce, Poland. barbara.barszcz@ujk.edu.pl.
authors.forename: M
authors.initials: M
authors.lastname: Zienkiewicz
authors.forename: A
authors.initials: A
authors.lastname: Jabłońska-Wawrzycka
authors.forename: J
authors.initials: J
authors.lastname: Szlachetko
authors.forename: Y
authors.initials: Y
authors.lastname: Kayser
authors.forename: K
authors.initials: K
authors.lastname: Stadnicka
authors.forename: W
authors.initials: W
authors.lastname: Sawka-Dobrowolska
authors.forename: J
authors.initials: J
authors.lastname: Jezierska
authors.forename: B
authors.initials: B
authors.lastname: Barszcz
authors.forename: J
authors.initials: J
authors.lastname: Sá
mesh_terms: D000438:Alcohols / Q000737:chemistry*; D002384:Catalysis; D006861:Hydrogen Peroxide / Q000737:chemistry*; D008024:Ligands; D008345:Manganese / Q000737:chemistry*; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D011725:Pyridines / Q000737:chemistry*; D014867:Water / Q000737:chemistry
chemical_list: D000438:Alcohols; D008024:Ligands; D009942:Organometallic Compounds; D011725:Pyridines; D014867:Water; D008345:Manganese; D006861:Hydrogen Peroxide