Assembly of a Cd(II)-organic framework based on 1,3,5-Tri(1H-imidazol-1-yl)benzene: Synthesis, crystal structure, and luminescent sensing property

A three-dimensional Cd(II)-organic framework, formula as [Cd(tib)(2)(NO3)(2)]center dot 4DMF (tib = 1,3,5-tri(1H-imidazol-1-yl)benzene and DMF = N, N-dimethylformamide), has been successfully constructed by solvothermal synthesis. The as-made complex has been investigated and characterized by single X-ray diffraction, elemental analysis, powder X-ray diffraction, thermogravimetric analyses, luminescent spectra, and UV-Vis adsorption spectra. By virtue of its stability and luminescent property, this complex can used as a luminescent sensor toward picric acid and nitrofurantoin. The calculated K-SV value is approximate 1.29 x 10(4) M-1 with the R-2 value of 0.9946 for picric acid and 3.02 x 10(4) M-1 with the R-2 value of 0.9973 for nitrofurantoin. Meanwhile, this as-synthesized complex has good recyclability.