title: [Synthesis and spectral analysis of metal-N-glycoside complexes and studies of catalyzed ester hydrolytic kinetics].
abstract: Four new complexes of Ni(II), Cu(II), Zn(II) and Co(III) with HL (HL= N,N'-di-beta-D-glucosylethylenediamine) have been synthesized in methanol solutions. The compositions of the complexes determined by elementary analysis are [Ni(HL)(H2O)2]2+ Cl2.CH3OH.2H2O, [Cu(HL)]2+ Cl2.CH3CH2OH.3H2O, [Zn(HL)]2+ Cl2.H2O and [Co(HL)(H2O)(OH)]2+ Cl2.CH3OH.2H2O respectively. They were also characterized by IR, UV and NMR spectra which show that complexes of Ni(II) and Co(III) have octahedral configuration, while complexes of Cu(II) and Zn(II) have tetralhedral configuration. The hydrolytic kinetics of p-Nitrophenyl picolinate(PNPP) catalyzed by these complexes in buffer solution was also studied spectrophotometrically.
authors.affiliation: Marine Drug and Food Institute, Ocean University of China, Qingdao 266003, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Zhang
authors.forename: Tao
authors.initials: T
authors.lastname: Jiang
authors.forename: Su-mei
authors.initials: SM
authors.lastname: Ren
authors.forename: Zhong-wei
authors.initials: ZW
authors.lastname: Zhang
authors.forename: Hua-shi
authors.initials: HS
authors.lastname: Guan
mesh_terms: D002384:Catalysis; D003035:Cobalt / Q000737:chemistry; D003300:Copper / Q000737:chemistry; D004952:Esters; D006027:Glycosides / Q000138:chemical synthesis / Q000737:chemistry* / Q000378:metabolism; D006868:Hydrolysis; D007700:Kinetics; D009682:Magnetic Resonance Spectroscopy; D008670:Metals / Q000737:chemistry*; D008956:Models, Chemical; D015394:Molecular Structure; D009532:Nickel / Q000737:chemistry; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry* / Q000378:metabolism; D010848:Picolinic Acids / Q000737:chemistry / Q000378:metabolism; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013057:Spectrum Analysis / Q000379:methods*; D015032:Zinc / Q000737:chemistry
chemical_list: C514685:4-nitrophenyl picolinate; D004952:Esters; D006027:Glycosides; D008670:Metals; D009942:Organometallic Compounds; D010848:Picolinic Acids; D003035:Cobalt; D003300:Copper; D009532:Nickel; D015032:Zinc