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    题名: A cyano-bridged hetero-tetranuclear [Sm2(o-phen)2(DMF)6(H2O)2(μ-CN)4Fe2(CN)8].5H2O.CH3OH: synthesis, structure, Mössbauer spectrum, and magnetism
    作者: Huang, Ya-feng;魏和祥;Wei, Ho-hsiang;Katada, Motomi
    贡献者: 淡江大學化學學系
    关键词: Crystal structure;Cyanide-bridged lanthanide complexes;Ferricyanide;Müssbauer effect;Magnetic properties;Mossbauer effect;Samarium
    日期: 2008-09
    上传时间: 2010-08-10 09:53:25 (UTC+8)
    出版者: Abingdon: Taylor & Francis
    摘要: Two new hetero-tetranuclear complexes, [Sm2(o-phen)2(DMF)6(H2O)2(µ-CN)4Fe2(CN)8]·;5H2O·;CH3OH (1) and [Sm2(o-phen)2(DMF)6(H2O)2(µ-CN)4Co2(CN)8]·;5H2O (2), have been prepared from reaction of SmCl3·;6H2O, K3[Fe(CN)6]·;3H2O or K3[Co(CN)6], and o-phen in methanol/DMF, and characterized. The structure of 1 consists of a cyano-bridged discrete cyclic tetranuclear complex in which the Sm(III) and Fe(III) centers are linked by four CN groups. Mossbauer spectrum of 57Fe indicates that both Fe(III) atoms in 1 have the same low-spin (S = 1/2) electronic ground state. From comparison of the magnetic data of 1 and 2, at low temperature for 1 indicates weak ferromagnetic coupling between Sm(III) and Fe(III).
    關聯: Journal of Coordination Chemistry 61(17), pp.2683-2689
    DOI: 10.1080/00958970801958782
    显示于类别:[化學學系暨研究所] 期刊論文

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