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Citation: Meng Xiangjun, Kou Huizhong, Zou Guozhang, Liao Daizheng, Jiang Zonghui, Wang Genglin. Synthesis and Magnetism of Dinuclear Cu (Ⅱ) Complexes Bridged Through Iodanilic Acid Anion[J]. Chinese Journal of Applied Chemistry, ;1997, 14(2): 60-62. shu

Synthesis and Magnetism of Dinuclear Cu (Ⅱ) Complexes Bridged Through Iodanilic Acid Anion

1.
Department of Chemistry, Nankai University, Tianjin 300071

Received Date: 20 August 1996
Available Online: 18 November 1996
Fund Project:

The preparation and characterization of a series of dinuclear copper(Ⅱ) complexes, Cu₂L₂IA(ClO₄)₂, are presented. The ligand L is 1,10-phenanthroline(phen), 5-nitro-1,10-phenanthroline(NO₂-phen) and 2,2'-bipyridine, and IA denotes the dianion of iodanilic acid. The complexes are characterized by elemental analysis, IR, electronic spectra, ESR and variable-temperature magnetic susceptibility measurements. The coordination geometry of copper(Ⅱ) ion is probably a distorted square pyramid. Room-temperature ESR spectra of all the complexes studied show the ΔM_s=±2 half-field transitions. The variable-temperature magnetic susceptibility of Cu₂(phen)₂IA(ClO₄)₂ had been measured (4.2~300 K) and the exchange parameter, J, was found to be -29.18 cm^-1 using the Heisenberg model. This indicates that an antiferromagnetic interaction exists between the metal ions.
- iodanilic acid,
- Cu(Ⅱ),
- dinuclear complex,
- synthesis,
- magnetism
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