Synthesis and Structure of a Two-Dimensional Metal-Organic Framework:Fe(C7H3NO4)(H2O)2n
A two-dimensional coordination polymer Fe(C7H3NO4)(H2O)2n was prepared with pyridine-2,3,5-tricarboxylic acid (H3pta) and iron(Ⅱ) perchlorate at hydrothermal condition.Pyridine-2,3,5-tricarboxylic acid was decomposed to form the organic ligand of pyridine-3,5-dicarboxylate anion appeared in 1.Its crystal structure was determined by single crystal X-ray diffraction.The complex belongs to monoclinic crystal system,C2/c space group with a =0.9945(2) nm,b =1.2067(3) nm,c =0.74125(15) nm,a =γ =90°,β =105.859(3)°,V =0.8557(3) nm3,Z =4,D =1.995 Mg/m3.The Fe(Ⅱ) ion is five-coordinated by one nitrogen atom and four oxygen atoms.Furthermore,each Fe(Ⅱ) ion bond with two other oxygen atoms on carboxyl groups by weak coordination action.The five coordination atoms form a distorted trigonal bipyramid coordination geometry.These coordination geometries are interlinked into a 2D alveolate net structure.The 2D layers are further connected into a 3D coordination polymer by hydrogen bonds.
crystal structure iron coordination polymer 3,5-pyridinedicarboxylic acid
Hongsheng Wang Haifeng Suo
School of Chemistry and Chemical Engineering,Xuchang University,Xuchang,Henan,461000,P.R.China Xuchang University Library,Xuchang,Henan,461000,P.R.China
国际会议
西安
英文
52-55
2013-07-27（万方平台首次上网日期，不代表论文的发表时间）