摘要
A very stable Cd^(Ⅱ)-organic framework,{[Cd_(3)(Tipe)_(1.5)(bpodc)_(2)Cl_(2)]·(H_(2)O)_(2)}_(n)(compound 1,Tipe=1,1,2,2-tetrakis(4-(imidazol-1-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 P1^(-),with a=12.289(3),b=15.951(4),c=20.755(5)Å,α=81.248(2)°,β=83.905(2)°,γ=89.452(2)°,V=3998.2(17)Å^(3),Z=2,M_(r)=1839.59,D_(c)=1.528 g/cm^(3),μ=0.925 mm^(-1),F(000)=1844,R=0.0508 and wR=0.1571 for 13998 observed reflections(I>2σ(I)).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(λ_(ex)=397 nm)by ligand-to-ligand charge transfer of TPE chromophore.And it exhibits excellent performance in detecting Fe^(3+)and Cr_(2)O_(7)^(2-)ions in aqueous solutions as a multi-response sensor.
基金
Supported by the National Natural Science Foundation of China(No.21671084)
a Start-up grant and pre-research foundation from Jiangsu University of Science and Technology of China。
