A novel complex Cu(dafo)2(NO3)2·2H2O was synthesized. The crystal structure data indicate that the Cu(Ⅱ) ion was coordinated with the four nitrogen atoms through two ligands (dafo) respectiviely and two oxygen atoms through two water molecules respectively. The two ligands(dafo) and Cu(Ⅱ) ion were in the same plane, whereas the two water molecules were vertical to the plane. The Cu(Ⅱ) ion was in the center of the malformed octahedron. The crystal data is triclinic, P1 space group, a=0.7987(2)nm, b=1.0543(1)nm, c=0.70403(5)nm, α= 91. 557(8)°, β=96.711(10)°, γ=94.45(1) °.UV and solid flouorescence spectra were analyzed. The vibration spectrum of the complex was calculated with Hyper Chem 5.11 software.

Key words: BIPYRIDINE P, FLUORENONE P, SYNTHESIS METHODS, CRYSTAL STRUCTURE, VIBRATIONAL SPECTRA, COPPER COMPLEX, THEORETICAL CALCULATION, NORMAL COORDINATE ANALYSIS