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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/25316

    Title: Synthesis, Crystal Structure, Cryomagnetic Properties and Catalytic Activity for H2O2 Disproportionation of New Dinuclear and Polynuclear Bis(2,4-pentanedionate)Manganese(II) Complexes with Diazine Ligands
    Authors: Hong, D. M.;魏和祥;Wei, Ho-hsiang;Chang, K. H.;Lee, G. H.;Wang, Yu
    Contributors: 淡江大學化學學系
    Keywords: Crystal structure;Polynuclear complexes;Manganese complexes;Magnetic properties;Catalase activity;晶體結構;多核錯合物;錳錯合物;磁性;過氧化氫酵素
    Date: 1998-10-01
    Issue Date: 2013-07-29 13:44:54 (UTC+8)
    Publisher: 臺北市:中國化學學會
    Abstract: The structures, magnetic properties, and catalytic activity for H/sub 2/O/sub 2/ disproportionation are reported for three new complexes [Mn/sub 2/(acac)/sub 4/(pydz)] (1), [Mn(acac)/sub 2/(pym)] (2), and [Mn(acac)/sub 2/(pyz)] (3) (acac= 2,4- pentanedionate, pydz = pyridazine, pym = pyrimidine, pyz = pyrazine). The X-ray crystal structures of 1 and 3 have been determined. Complex 1 crystallizes as a binuclear complex with .eta./sup 2/-pyridazine and acac bridging ligands 3 crystallizes as a linear polymeric chain with bridging pyrazine molecule. Cryomagnetic investigations (4-300K) reveal a weak intramolecular antiferromagnetic spin exchange with J = -2.05, -0.04, and -0.05cm/sup -1/ for the complexes of 1, 2, and 3, respectively. The complexes 1-3 showed two-step catalytic activity for H/sub 2/O/sub 2/ disproportionation in pyridine solution at 0 .degree.C.
    Relation: Journal of the Chinese Chemical Society=中國化學會會誌 45(5), pp.701-706
    DOI: 10.1002/jccs.199800105
    Appears in Collections:[Graduate Institute & Department of Chemistry] Journal Article

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