Synthesis,Structure and Fluorescence Property of New Cd-MOFs Based on a Tetraphenylethylene(TPE)Ligand

• 来源期刊: 结构化学
• 年，卷（期）: 2021,（2）
• 所属期刊栏目: coordination cbemistry
• 页码范围: 193-198
• 页数: 6页
• 语种: 英文
• DOI: 10.14102/j.cnki.0254-5861.2011-2794

摘要

A very stable CdⅡ-organic framework,{[Cd3(Tipe)15(bpodc)2Cl2]?(H2O)2}n(compound 1,Tipe =1,1,2,2-tetrakis(4-(imidazol-l-yl)phenyl)ethene,bpodc = benzophenone-4,4-dicarboxylic acid),has been successfully synthesized under hydrothermal conditions.Compound 1 crystallizes in the triclinic system,space group Pī,with a = 12.289(3),b = 15.951(4),c = 20.755(5)?,a = 81.248(2)°,β=83.905(2)°,y= 89.452(2)°,V =3998.2(17)?3,Z = 2,Mr= 1839.59,Dc = 1.528 g/cm3,μ = 0.925 mm-1,F(000)= 1844,R = 0.0508 and wR =0.1571 for 13998 observed reflections(I ＞ 2σ(1)).Its overall structure is a three-dimensional stacking with a porosity of 10.1％based on a calculation by PLATON.Compound 1 shows a blue fluorescence emission with the peak maximum of 501 nm(λex = 397 nm)by ligand-to-ligand charge transfer of TPE chromophore.And it exhibits excellent performance in detecting Fe3+and Cr2072-ions in aqueous solutions as a multi-response sensor.