摘要
采用溶剂热合成法合成了双核钆混配配合物[Gd(Ts-p-aba)_3(phen)]_2·2DMF·4.4H_2O(Ts-p-aba-=N-对甲苯磺酰对氨基苯甲酸根离子,phen=1,10-邻菲罗啉,DMF=N,N-二甲基甲酰胺),并利用红外光谱(FT-IR)、热重分析(TG-DSC)和X-射线单晶衍射等实验手段研究了配合物的组成、结构和性质。X-射线单晶衍射结果表明:该配合物晶体属三斜晶系,P1空间群,晶胞参数是:a=1.10505(12)nm,b=1.74570(18)nm,c=1.78163(19)nm,α=70.321(2)°,β=85.357(2)°,γ=82.600(2)°,V=3.2066(6)nm^3,M_r=2633.99,D_c=1.364 g/cm^3,Z=1,μ=1.197mm^(-1)。6个氧原子和2个氮原子在钆离子周围形成一个变形的反四方棱柱体配位环境。配合物存在着丰富的氢键,将配合物连接成二维层状超分子结构。
One dinuclear gadolinium mixed complex of N- p- Tolylsulfonyl- p-Aminobenzoic acid and 1,10- phenanthroline and rare earth Gd was synthesized by solventthermal synthesis method. Its crystal structure is determined to be [ Gd ( Ts- p- aba)3 ( phen) ]2 · 2DMF · 4. 4H2O ( Ts- p- aba_ = N-p-Tolylsulfonyl- p- Aminobenzoic ,phen = 1,10-phenanthroline, DMF = dimethyl formamide) by IR, TG-DSC and single crystal X-ray diffraction analysis. The crystal is in triclinic system, space group P1^- , with the cell parameters: a = 1. 10505( 12) nm, b = 1. 74570( 18) nm, c = 1.78163 (19) nm, α =70. 321 (2) ° , β = 85.357(2)°, γ =82.600(2)°, V = 3.2066(6) nm^3, Mr =2633.99, Dc =1.364 g/cm^3, Z = 1 ,μ = 1. 197 mm^ -1. The structure analysis reveals that the Gd^3+ is in a geometry of distorted versa square prismoid built by six oxygen atoms and two nitrogen atoms. There is rich hydrogen bond in the title complex, forming a two-dimensional layer supermolecule structure.
出处
《人工晶体学报》
EI
CAS
CSCD
北大核心
2016年第8期2113-2117,2134,共6页
Journal of Synthetic Crystals
基金
福建省教育厅基金(JA14261)
国家大学生创新创业训练(201610399007)