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化学学报
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化学学报 ›› 1999, Vol. 57 ›› Issue (4): 409-414. 上一篇    下一篇

研究论文

一个新型分子铁磁体: 氰根桥联的铜(II)-铁(III)配合物

寇会忠;廖代正;程鹏;姜宗慧;王耕霖   

  1. 南开大学化学系.天津(300071)
  • 发布日期:1999-04-15

A novel molecular-based ferromagnet: Cyano-bridged Cu(II)-Fe(III) complex

Kou Huizhong;Liao Daizheng;Cheng Peng;Jiang Zonghui;Wang Genglin   

  1. Nankai Univ, Dept Chem.Tianjin(300071)
  • Published:1999-04-15

PDF

474

被引次数

4

合成和表征了一个新的分子磁体,氰根桥联的杂化型异金属配合物[Cu(en)]~3[Fe(CN)~6]~2.3H~O(en为乙二胺)。变温磁化率、零场冷却磁化强度(ZFCM)、场冷却磁化强度(FCM)和磁滞回线测量表明铜铁离子间存在着铁磁性相互作用,其铁磁相变温度为T~c=11.0K,矫顽力为20×10^-^4T,剩磁为1.70×10^-^1cm^3.mol^-^1.T。该化合物为杂化型铜(II)-铁(III)普鲁士蓝类中具有铁磁相变温度的首例。

关键词: 铁磁体, 铜络合物, 铁络合物, 磁性, 氰化物, 乙二胺P, 磁化强度, 磁场

A new molecular-based ferromagnet [Cu(en)]~3[Fe(CN)~6]~2.3H~2O has been synthesized and characterized. Variable-temperature magnetic susceptibility, zero-field-cooled magnetization (ZFCM), field-cooled- magnetization (FCM) and the hysteresis loop measurements show that a ferromagnetic interaction exists between the copper(II) and iron (III) ions. The critical phase-transition temperature, coercive force and remnant magnetization are 11.0K, 20×10^-^4T, and 1.70× 10^-^1cm^3. mol^-^1.T respectively. To our knowledge, the present complex is the first example with a Tc value for the hybrid type copper(II)-iron(III) complexes.

Key words: COPPER COMPLEX, IRON COMPLEX, MAGNETISM, CYANIDES, ETHANEDIAMINE P, MAGNETIZATION, MAGNETIC FIELDS

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