| Abstract: A complex [Cu(2,2′-bipy)( BAA)][Cu(2,2′-bipy)( BAA)(H2O)]2·(H2O)3 (BAA=benzilic acid anion, 2,2′-bipy=2,2′-bipyridine) has been synthesized. Crystal data for this complex are as follows: triclinic, space group P1, a=1.121 7(5) nm, b=1.360 2(6) nm, c=2.335 2(10) nm, α=99.260(6)°, β=101.223(8)°, γ=94.805(8)°, V=3.425(3) nm3, Dc=1.385 g·cm-3, Z=6, μ(Mo Kα)=0.992 mm-1, F(000)=1 474, final discrepancy factors R1=0.056 1, wR2=0.112 8. There are three mononuclear copper(Ⅱ) complexes in one asymmetric unit of the compound, where the three central Cu(Ⅱ) ions are not all of the same coordination number. Cu(1) ion is tetra-coordinated, while Cu(2) ion and Cu(3) ion are both penta-coordinated. The cyclic voltammetric behavior and fluorescent property of the title compound were investigated. The results show that the electron transfer in the electrode reaction of the title complex is irreversible, and two electrons are involved in the oxidation of the title complex. When the exciting radiation setting at 478 nm, the title complex can give off fluorescent emission. CCDC: 788067. |
