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    Title: Syntheses, Crystal Structure, and Magnetic Properties of a Self-assembling Dinickel(II) Helicate with Novel Bipyridine Ligand
    Authors: Wang, Wen-Jwu;Wang, Yi-Chun;Kao, Hsien-Chang
    Contributors: 淡江大學化學學系
    Keywords: Supramolecular chemistry;Helicates;Dinickel complex
    Date: 2010-08-01
    Issue Date: 2013-09-05 10:42:43 (UTC+8)
    Publisher: 臺北市:中國化學學會
    Abstract: A novel polydentate ligand,L= 2,2'-bipyridyl-6,6' bis(2-acetylpyrazinohydrazone), was synthesized by condensation of 6,6'-dihydrazine-2,2' bipyridine and 2-acetylpyrazine. Reaction of Lligand strands with nickel(II) perchlorate in CH3 CN generates a double helical dinuclear complex. Its complexation behavior was studied by UV-Vis spectrophotometric titration experiments that revealed the formation of dinuclear complexes [Ni2L2](ClO4)4. Moreover, the double-helical structure of [Ni2L2](ClO4)4 was confirmed by X-ray diffractometer. Each nickel(II) center occupies a distorted octahedral environment. Variable temperature magnetic measurements revealed weak antiferromagnetic interactions between Ni(II)ion centers with J = -0.34 cm-1.
    Relation: Journal of the Chinese Chemical Society=中國化學會會誌 57(4)pt.B, pp.876–882
    DOI: 10.1002/jccs.201200015
    Appears in Collections:[化學學系暨研究所] 期刊論文

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