Structure and magnetic behavior of a trinuclear Mn(Ⅱ) coordination complex with EDTA-ligand
A trinuclear Mn(Ⅱ) coordination complex Mn3 (HEDTA)2·10H2O (EDTA=ethylene diamine tetraacetic acid) 1 has been synthesized and characterized by X-ray crystal structure determination. In addition, IR spectrum, thermogravimetric analysis, electron paramagnetic resonance (EPR) spectra and magnetic susceptibility of this complex are discussed. X-ray determination indicates that six- and seven-coordinate modes between Mn(Ⅱ) and H4EDTA exist alternately in 1. Furthermore,detailed discussion of magnetic ordering in the temperature range of 2～300 K reveals the antiferromagnetic interactions in the complex.
manganese, EDTA-ligand, crystal structure, magnetic susceptibility.
刘祖黎、赵爱清、姚凯伦、贾丽慧
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Department of Physics, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
manganese, EDTA-ligand, crystal structure, magnetic susceptibility.
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