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Journal of Coordination Chemistry
Year: 2008  |  Volume: 61  |  Issue: 5  |  Page No.: 661 - 668

Synthesis, crystal structure and properties of a 1D copper(II) complex with 1,5,9-triazacyclododecane bridged by p-benzenebicarboxylate

Pei-Pei Yang, Li Feng, Wen Gu, Xin Liu and Shi-Ping Yan    

Abstract: A 1D complex [lcub[Cu2([12]aneN3)2(p-paa)(H2O)2](ClO4)2rcub[Cu2([12]aneN3)2(p-paa)2]]n ([12]aneN3 = 1,5,9-triazacyclododecane, p-paa = p-benzenebicarboxylate) has been synthesized and structurally characterized. The complex contains two different binuclear copper(II) moieties. One part includes a binuclear copper(II) unit and non-coordinated perchlorate anions. A neutral binuclear copper(II) part which forms a zigzag chain structure via the bridging p-paa ligand completes the unit-cell. Elemental analysis, IR, UV-Vis spectra and magnetic properties for the complex have also been determined. Magnetic susceptibilities in the solid state are measured over the temperature range from 77 to 300 K, showing a weak antiferromagnetic coupling with a best fit J1 = -3.09 cm-1, J2 = -5.279 cm-1, g = 2.099 and R = 1.226 times 10-5.

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