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Synthesis and crystal structure of a Cu(II) complex Cu2(Endc)2(Bipy)2 and its photoluminescence properties

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Abstract

A novel Cu(II) complex Cu2(Endc)2(Bipy)2 has been synthesized by the reaction of Cu(NO3)2 · 3H2O, Endc (endo-norbornene-cis-5,6-dicarboxylic acid), and Bipy (2,2-bipyridine) at room temperature. Elemental analysis, IR spectra, and X-ray single-crystal diffraction were carried out to determine the composition and crystal structure. Crystal data for this complex: triclinic, P \( \bar 1 \) with a = 9.0373(10), b = 10.1637(11), c = 10.5574(12) Å, α = 65.78(1)°, β = 72.32(2)°, β = 73.23(2)°, Z = 1, V = 827.46(16) Å3, ρ c = 2.160 g/cm3, F(000) = 410.0, R = 0.0483 and wR = 0.0958 independent reflections for 4468 observed ones (I > 2 σ(I)).The Cu2+ ion is coordinated by two nitrogen atoms from the Bipy molecule and three oxygen atoms from two Endc, giving a distorted squarepyramidal coordination geometry. Two neighboring Cu2+ ions are bridged by a pair of bimonodentate carboxyl groups of different Endc acids, giving a centrosymmetrical binuclear structure which a Cu…Cu distance of 3.2946 Å. The photoluminescence properties of the complex were studied at room temperature. The complex displays an obvious photoluminescent emission upon excitation at 390 nm in the solid state.

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Authors and Affiliations

  1. Laboratory of Coordination Chemistry, Shenyang Institute of Chemical Technology, Shenyang, 110142, P.R. China

    E. J. Gao, S. Ma, Y. Huang, H. Y. Liu, F. C. Liu & Q. Z. Shi

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  1. E. J. Gao
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  2. S. Ma
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  3. Y. Huang
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  4. H. Y. Liu
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  5. F. C. Liu
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  6. Q. Z. Shi
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Correspondence to E. J. Gao.

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Gao, E.J., Ma, S., Huang, Y. et al. Synthesis and crystal structure of a Cu(II) complex Cu2(Endc)2(Bipy)2 and its photoluminescence properties. Russ J Coord Chem 35, 776–779 (2009). https://doi.org/10.1134/S107032840910011X

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  • DOI: https://doi.org/10.1134/S107032840910011X

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