Synthesis, crystal structure and magnetic properties of cyanide-bridged one-dimensional Ni(II)-Fe(III) complexes based on pentacyanoferrite
Synthesis, crystal structure and magnetic properties of cyanide-bridged one-dimensional Ni(II)-Fe(III) complexes based on pentacyanoferrite
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DOI：
10.1016/j.poly.2014.06.058
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发表时间：
2014-10
期刊：
影响因子：
2.6
通讯作者：
Weiwei Ni;Xi Chen;A. Cui;Caiming Liu;H. Kou
中科院分区：
文献类型：
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作者：
Weiwei Ni;Xi Chen;A. Cui;Caiming Liu;H. Kou
Four cyanide-bridged bimetallic Ni(II)–Fe(III) complexes have been synthesized and characterized in order to find new molecular materials with interesting magnetic properties. One-dimensional complexes of pentacyanoferrite(III), [Ni(2,3,2-tet)Fe(Him)(CN)5]·3H2O (1), [Ni(3,2,3-tet)][Fe(CN)5(Him)]·2H2O (2), [Ni(3,2,3-tet)][Fe(CN)5(1-CH3im)]·4H2O (3), and [NiL1][Fe(CN)5(1-CH3im)]·3H2O (4) have been prepared and characterized by X-ray single-crystal structure analysis and magnetic measurements. All complexes possesses linear or zigzag chains of alternate [Ni(L′)]2+and [Fe(L)(CN)5]2−units, which are linked by twotrans/ciscyanide ligands of [Fe(L)(CN)5]2−. Magnetic studies reveal that they exhibit intermetallic ferromagnetic coupling and long-range antiferromagnetic ordering. The strength of the Ni(II)–Fe(III) magnetic coupling has been analyzed by comparison with the related cyanide-bridged Ni(II)–Fe(III) complexes.
