Construction of chlorido-bridged dinuclear copper(II) complexes with similar tridentate Schiff bases |
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| Authors: | S -S Qian H -H Li Z -L You H -L Zhu |
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| Institution: | 1. School of Life Sciences, Shandong University of Technology, ZiBo, P. R. China
2. Department of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, P. R. China
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| Abstract: | Two new chlorido-bridged dinuclear copper(II) complexes Cu2Cl2(L1)2] (1) and Cu2Cl2(L2)2] (2), where L1 and L2 are the deprotonated form of Schiff bases 2-1-(2-morpholin-4-ylethylimino)ethyl]phenol (HL1) and 2-1-(2-piperidin-1-ylethylimino)ethyl]phenol respectively, are prepared and structurally characterized by elemental analysis, IR spectra, and single crystal X-ray crystallography. Complex 1 crystallizes in the monoclinic space group P21/c with unit cell dimensions a = 8.0816(2) Å, b = 19.1780(3) Å, c = 9.6757(3) Å, β = 106.465(2)°, V = 1438.13(6) Å3, Z = 2, R 1 = 0.0409, and wR 2 = 0.1085. Complex 2 crystallizes in the monoclinic space group P21/c with unit cell dimensions a = 7.7640(10) Å, b = 19.930(3) Å, c = 9.628(2) Å, β = 103.890(3)°, V = 1446.2(4) Å3, Z = 2, R 1 = 0.0634, and wR 2 = 0.1316. Each Cu atom in the complexes is coordinated by three donor atoms of the Schiff bases and by two bridging Cl atoms, forming square pyramidal geometry. The Cl anions are preferred bridging groups for the construction of dinuclear copper complexes with tridentate Schiff bases. |
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