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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 32, Number 1
BKCSDE 32(1)
January 20, 2011 

Synthesis, Characterization and Property Studies on a Dinuclear Copper(II) Complex with Dipyridine Derivate and Acetylacetone
Pu Su Zhao*, Zhi Yan Guo, Jing Sui, Jing Wang, Fang Fang Jian
Dinuclear Cu complex, Crystal structure, Magnetic property, Thermal stability, Electrochemical property
A dinuclear copper(II) complex of [Cu2(aceace)4(dipyph)] [aceace = acetylacetone, dipyph = 1,4-di(4-pyridylethene- 2-yl-)benzene] has been synthesized and characterized by elemental analysis, IR and X-ray single crystal diffraction. It crystallizes in the monoclinic system, space group P21/c, with lattice parameters a = 7.9584(16) Å, b = 18.594(4) Å, c = 15.063(4) Å, β = 120.97(2)o and Mr = 807.85 (C40H44Cu2N2O8), Z = 2. Each of the Cu2+ ion adopts a square pyramid geometry and coordinates with four oxygen atoms from two aceace ligands and one nitrogen atom from dipyph bidentate ligand. Magnetic measurement shows that the Weiss constant and Curie constant for the title compound are ‒0.22 K and 0.1154 emu·K/mol, respectively. Thermal stability data indicate that the title complex undergoes two steps decomposition and the residue is Cu2O4. In the potential range of ‒1.5 ~ 0.8 V, the title complex represents an irreversible electrochemical process.
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