基于对苯二甲酸根及邻菲咯啉的铁(Ⅱ)配位聚合物的水热合成、晶体结构和荧光性质

Hydrothermal Synthesis, Crystal Structure and Luminescence of a Iron Coordination Polymer with Terephthalate and o-Phenanthroline

以对苯二甲酸(H2bdc)、邻菲咯啉(phen)和硫酸亚铁为原料,在水热条件下合成了一个新的配位聚合物[Fe(phen)(bdc)(H2O)]n,并对其进行了元素分析、红外光谱、紫外-可见光谱、热重和X-射线单晶衍射表征。该聚合物属于三斜晶系,P1空间群。每个Fe髤与2个N原子和3个O原子配位形成高度畸变的三角双锥结构,2个Fe髤由配体对苯二甲酸离子桥联为一维链状结构,链与链之间通过O-H…O氢键作用形成三维结构。荧光测试表明配合物在368 nm处有荧光发射。

A new coordination polymer [Fe（phen）（bdc）（H2O）]n has been hydrothermally synthesized and structurally characterized by elemental analysis, IR, UV-Vis, TG and single crystal X-ray diffraction analysis. It crystallizes in triclinic, space group P1, C20H14N2FeO5, with a=0.9308 （6） nm, b =1.022 6 （7） nm, c=1.134 1 （5） nm,α= 112.790（15）°,β=94.720（14）°, γ=113.417（10）°, V=0.876 9（9） nm3, Z=2, the final R1=0.0346, wR2=0.078 8. The Fe（Ⅱ） is coordinated with two nitrogen atoms and three oxygen atoms making a highly distorted trigonal bipyramidal. A 1D chain structure is constructed and further extended into a 3D structure through O-H…O intermolecular hydrogen bonding interactions. The polymer shows a fluorescence-emission at around 368 nm. CCDC： 894820.