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2007年云南大学获准国家自然科学基金项目表(续)

2024-07-23 来源:步旅网
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] ] ] ] 78 云南大学学报(自然科学版) 第30卷 Opinion in Biotechnology,1999,10:370—375. 高等教育出版社,2002. SELMECZI K,Rrgher M,GIORGI M,et a1.Catechol [9] QIU J H,LIAO z R,MENG X G,et a1.Crystla struc. oxidase activity of dicopper complexes with N—donor tures and polyphenol oxidase activities of dinuelear cop-  ̄angds[J].Coord Chem Rev,2003,245:191—201. per(Ⅱ)and cobalt(Ⅱ)complexes with EGTB[J]. OKI A R,B0MMARREDDY P R,ZHANG H M.et a1. Polyhedron,2005,24:1 617.1 623. Manganese(1/)conpiex of the’tripod’ligand tris(2一 [10] MANZUR J,GARCIA A M,RIVAS V,et a1.Oxida. benzimidazolylme thy1)amine:Five-coordinated and six— tion of 3,5-diert—butyleatechol catlayzed by copper(1/) coordinated Mn(Ⅱ)in the crystal structure[J].Inorg complexes[JJ.Polyhedron,1997,16(13):2 299.2 305. Chim Acta,1995,231:109一l14. YAMAHARA R,0G0 S,MASUDA H,et a1.(ate— GECRRY W J.Characterization of Coordination Com— cholato)iron(Ⅲ)complexes:structurla and funetional pound【J].Coord Chem Rev,1971,7:llO—ll3. models for the eatechol—bound iron(Ⅲ)form of care— 王镜岩,朱圣庚,徐长法.生物化学[M].3版,北京: chollJJ.J Inorg Biochem,2002,88:284—294. Synthesis,characterization and catalytic activities of mononuclear complexes QIU Jiang-hua ,WANG Guang-hui ,LIAO Zhan.ru (1.Hubei Key Lab of Coal Conversion and New Carbon Materilas,CoHege of Chemical Engineering and Technology, Wuhan University of Science and Technology,Wuhan 43008 1,China; 2.CoHege of Chemistry,Centrla China Normal University,Wuhan 430079,China) Abstract:Cu(Ⅱ),Fe(Ⅲ),M n(Ⅱ)and Ni(Ⅱ)mononuclear complexes containing bezimidazoly1.rich ligand have been synthesized and characterized by elemental analysis,ultraviolet-visible spectra(U V-Vis.),IR and molar conductivity.The kinetics of pyrogallol oxidation catalyzed by the complexes have been studied.It is apparent that Michaelis-Menten equation curves of different metal center complexes are fine and the activities of all complexes would increase with the increasing of pH values.Mechanism of pyrogallol oxidation has been checked up by electrospray ionization(ESI)mass spectra.Pyrogallol is first oxidized to 0-quinone。then to pur- purogallin. Key words:mononuclear complexes;polyphenol oxidase;pyrogallol;Michaelis・-Menten equation;mecha・- nism * * * * * * * * * * * * * * * * * * * * * * * * * ・简讯・ 2007年云南大学获准国家自然科学基金项目表(续) (待续)(云南大学科学技术处供稿) 

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