Design and synthesis of two coordination polymers for the rapid detection of ciprofloxacin based on triphenylpolycarboxylic acid ligands
Two coordination polymers were synthesized by hydrothermal reaction,namely,[Cd(H3cpbda)(2,2'-bipy)(H2O)]n(1)and[Mn(H3cpbda)(phen)(H2O)]n(2),where H5cpbda=5,5'-[(5-carboxy-1,3-phenyl)bis(oxy)]triisophthalic acid,2,2'-bipy=2,2'-bipyridine,phen=1,10-phenanthroline.The two complexes were characterized by single-crystal X-ray diffraction,powder diffraction,infrared spectroscopy,and thermogravimetric analysis.Complexes 1 and 2 are"V"-shaped 1D chains,and the molecules form 2D(1)and 3D framework(2)structures through weakπ…πstack-ing.Furthermore,complex 1 was dispersed in an aqueous solution and its fluorescence intensity demonstrated excel-lent stability.Complex 1 can specifically detect ciprofloxacin in urine with a detection limit of 1.91× 10-8 mol·L-1.CCDC:2359498,1;2359499,2.
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