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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/25258

    Title: Structure, Magnetic Properties, Mössbauer and Catalase-like Activity of Spin Crossover Iron(Ⅲ) Complexes with Salicylaldimine Ligands
    Authors: 王美湞;Wang, Meichen;李錦祥;Lee, Gene-hsiang;王瑜;Wang, Yu;董滕永;Dong, Teng-yuang;魏和祥;Wei, Ho-hsiang
    Contributors: 淡江大學化學學系
    Keywords: Iron(III) complexes;Structures;Magnetic properties;Spin crossover;Catalase
    Date: 2002-10-01
    Issue Date: 2013-07-29 13:44:45 (UTC+8)
    Publisher: 臺北市:中國化學學會
    Abstract: The preparation and characterization of three new spin-crossover ferric complexes with the composition [Fe(5-Br-Salmeen)2]ClO4 (1), [Fe(5-Br-SalEen)2]PF6.CH2Cl2 (2), and [Fe(3-OCH3-Salpen)2]PF6 (3), where substituted Salmeen, SalEen, and Salpen result from the Schiff-base condensation of substituted salicylaldehyde with N-methylethylenediamine, N-ethylethylenediamine, and N-methylpropylenediamine, respectively. The structural determinations reveal that complexes 1-3 cations possess the same general structure with the N4O2 donor atom set from two tridentate ligands forming a distorted octahedron about the Fe(III) ion. Complexes 1-3 have been shown by variable-temperature magnetic susceptibility (2-300 K) and 57Fe Mossbauer spectroscopy to be (low-spin, S = 1/2) ? (high-spin, S = 5/2) spin-equilibrium compounds in the solid state. The H2O2 disproportionation of complexes 1-3 in methanol at 25 °C show the rate law of kobs[H2O2][complex].
    Relation: Journal of the Chinese Chemical Society=中國化學會會誌 49(5), pp.825-832
    DOI: 10.1002/jccs.200200118
    Appears in Collections:[Graduate Institute & Department of Chemistry] Journal Article

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