Synthesis, Crystal Structure and Luminescence Properties of Cd(II)-1,10-Phenanthroline Complex

摘要

A new Cd(II) complex, Cd(NO3)2(Phen)2, was prepared by the reaction of Cd(NO3)2 with 1,10-phenanthroline in ethanol. The structure of the synthetic Cd(II) complex was determined by single crystal X-ray diffraction analysis and characterized by elemental analysis, molar conductivity and IR spectroscopy. Its fluorescence measurements showed that the Cd(II) complex in solid form has excellent performance on fluorescence emission and the intensity of fluorescence emissions were quenched sharply by solvents, Further, its decreasing intensity seemed to be influenced by the increasing polarity of solvents. The results indicated that the fluorescence intensity of Cd(II) complex quenched dramatically and the quenching efficiency was in the order H2O > DMF > CH3OH > CH3CH2OH. And the Cd(II) complex can be used as fluorescence sensors toward polarity of solvents.