新型4-氟水杨酸双核铜配合物的合成及其荧光性能

Synthesis and Fluorescence Properties of a Novel Dinuclear Copper Complex of 4-Fluoro-2-hydroxy Benzoic Acid

以4-氟水杨酸(H2foac)和2,2'-联吡啶(bipy)为原料,甲醇和水为溶剂,醋酸铜为离子源,采用溶剂热法合成了一个新型的双核铜配合物{[Cu2(foac)2(bipy)2]·3H2O(1)},其结构和荧光性能经IR,FL,元素分析和X-射线单晶衍射表征。1属三斜晶系,Pī空间群,晶胞参数a=8.198(2),b=9.986(3),c=11.814(4),α=91.45(3)°,β=105.78(2)°,γ=92.87(3)°,V=928.8(5)3,Z=1,Dc=1.433 g·cm-3,μ=1.210mm-1,F(000)=408。1中两个Cu(Ⅱ)分别与bipy的两个氮原子,foac2-的两个氧原子及另一个foac2-的桥联氧原子配位形成扭曲的四方锥配位环境。在375 nm激发波长激发下,1的发射峰位于390 nm。

A novel binuclear complex{ [Cu2（ foac）2（ bipy）2]·3H2O（ 1） } was synthesized by solvothermal mothod using 4-fluoro-2-hydroxybenzoic acid（ H2foac） and 2,2＇-bipyridine（ bipy） as the raw materials,methanol and distilled water as the solvents,copper acetate as the ion source. The structure and properties were characterized by IR,FL,elemental analysis and X-ray single crystal diffraction. 1 belongs to triclinic,space group Pī with a = 8. 198（ 2）A°,b = 9. 986（ 3） A°,c = 11. 814（ 4）A°,α = 91. 45（ 3） °,β = 105. 78（ 2） °,γ = 92. 87（ 3） °,V = 928. 8（ 5） A°^3,Z = 1,Dc = 1. 433 g·cm^-3,μ = 1. 210 mm- 1,F（ 000） = 408. Cu（ Ⅱ） in 1 are five-coordinated by three O atoms from two H2 foac ligands and two N atoms from bipy to form a disorder rectangular pyramid configuration geometry. The maximum peak of 1 was at 390 nm under excitation wavelenghth of 375 nm.