title: The formation of a luminescent Mn(III,IV) intermediate of bis(2-pyridylmethyl)amine and acetone assistant its intramolecular C-H oxidation.
abstract: The dinuclear Mn(II) complexes of bis(2-pyridylmethyl)amine (dpa) reacted with H(2)O(2) producing a fluorescent dioxodimanganese(III,IV) intermediate [(dpa)Mn(2)Cl(2)(μ-O(2))(OHdpa)](3+), which was characterized by IR, UV, ESR, ES-MS and fluorescence spectra. ES-MS data show that this intermediate could bind an acetone molecule forming dioxodimanganese(III,IV)-acetone adduct [(dpa)Mn(2)Cl(2)(μ-O)(CH(3)COCH(3))(OHdpa)](3+). The emission of dioxodimanganese(III,IV)-acetone at 378 nm was stronger than that of dioxodimanganese(III,IV) complex. Excess acetone molecules promoted the intramolecular C-H oxidation and the formation of one dimensional chain Mn(II) complex [(2-picolinic-acid)Mn(H(2)O)(2)Cl(O)](n) through possible intramolecular oxygen transfer reaction.
authors.affiliation: School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
authors.forename: Dong-Fang
authors.initials: DF
authors.lastname: Zhou
authors.forename: Qiu-Yun
authors.initials: QY
authors.lastname: Chen
authors.forename: Hai-Jian
authors.initials: HJ
authors.lastname: Fu
authors.forename: Qi-
authors.initials: Q
authors.lastname: Yan
mesh_terms: D000096:Acetone / Q000737:chemistry*; D002244:Carbon / Q000737:chemistry / Q000378:metabolism; D056831:Coordination Complexes / Q000138:chemical synthesis* / Q000737:chemistry; D006859:Hydrogen / Q000737:chemistry / Q000378:metabolism; D006860:Hydrogen Bonding / Q000187:drug effects; D006861:Hydrogen Peroxide / Q000737:chemistry / Q000494:pharmacology; D049449:Luminescence; D008345:Manganese / Q000737:chemistry*; D008744:Methylamines / Q000737:chemistry*; D008954:Models, Biological; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry; D010084:Oxidation-Reduction; D011725:Pyridines / Q000737:chemistry*
chemical_list: D056831:Coordination Complexes; D008744:Methylamines; D009942:Organometallic Compounds; D011725:Pyridines; C121054:bis(2-pyridyl)methylamine; D000096:Acetone; D008345:Manganese; D002244:Carbon; D006859:Hydrogen; D006861:Hydrogen Peroxide