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    題名: Preparation, characterization and crystal structure of [Ni(bpy)3][Fe(CN)5(NO)]3H2O and one-dimensional cyano-bridged [Ni(en)2Fe(CN)5(NO)]H2O
    作者: Shyu, Horng-Lih;魏和祥;Wei, Ho-hsiang;Wang, Yu
    貢獻者: 淡江大學化學學系
    關鍵詞: Crystal structures;Dinuclear complexes;Iron complexes;Nickel complexes;Cyano complexes;Magnetic properties
    日期: 1997-05-15
    上傳時間: 2009-12-01
    出版者: Amsterdam:Elsevier BV
    摘要: Two new double complexes [Ni(bpy)3][Fe(CN)5(NO)]3H2O (1) and [Ni(en)2Fe(CN)5(NO)]H2O (2) have been isolated from the reactions of the mixture of NiCl2·6H2O and Na2[Fe(CN)5(NO)] in water, with bipyridine (bpy) and ethylenediammine (en) in ethanol, respectively, and have been characterized by X-ray analysis, IR, EPR, Mössbauer spectroscopy and magnetic measurements. Crystallographic data for 1 and 2 areas follows: triclinic, Full-size image (<1 K); 2: triclinic, Full-size image (<1 K). The bond angles of FeNO are nearly linear for 1 (178.3(4)°) and 2 (1i79.4(3)°). The structure of 1 consists of a double complex of a cation [Ni(bpy)3]2+ and an anion [Fe(CN)5(NO)]2−. The structure of 2 consists of a one-dimensional polymeric chain Ni(en)2NCFe(CN)3(NO)CNNi(en)2 in which the Ni(II) and Fe(II) centers are linked by two CN groups. Crymagnetic investigations (4–900 K) reveal a paramagnetic behavior for 1 and the presence of a one-dimensional Heisenberg weak antiferromagnetic chain with J=−0.47 cm−1 for 2. EPR spectra observed at ambient temperature for the Ni(II) ions in both complexes are also reported.
    關聯: Inorganica Chimica Acta 258(1), pp.81-86
    DOI: 10.1016/S0020-1693(96)05542-9
    顯示於類別:[化學學系暨研究所] 期刊論文

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