2′-(4-氟基苯亚甲基)-3，5-二羟基苯甲酰腙Ni(Ⅱ)配合物的合成、表征、晶体结构及光谱性质

In ethanol, a new mononuclear nickel(Ⅱ) complex incorporating Schiff base ligands, NiL₂](DMF)₄ (HL=2′-(4-fluorobenzylidene)-3,5-dihydroxybenzoylhy drazide) has been synthesized and characterized by IR, UV-Vis, elemental analysis and X-ray crystal structure analysis. The single crystal structure has been determined by single-crystal X-ray diffraction structure analysis. The crystal belongs to monoclinic system, space group P2₁/c with a=1.617 3(2) nm，b=1.798 5(2) nm, c=0.737 61(10) nm, β=91.953(3)°, V=2.144 3(5) nm³, Z=2, μ=0.526 mm^-1, D_c=1.390 g·cm^-3, F(000)=940, R_int=0.105 3. In the compound nickel(Ⅱ) atom is four-coordinated with two nitrogen atoms from amide and two oxygen atoms from keto group. The complex has the centrosymmetry and the nickel(Ⅱ) ion is located in the center. CCDC: 675522.