论文部分内容阅读
本文以烟酸为配体,硝酸银和氯化镧为原料,处理后的无水乙醇为溶剂用溶液中自组装的合成方法制备了LaAgL(L为烟酸)的配合物,用红外光谱对配合物的结构进行了表征。配合物荧光性能测表明配体烟酸的π-π*电子跃迁导致的荧光被淬灭,配合物荧光带状光谱主要为金属离子的MLCT跃迁。配合物的发光强度低于配体,但其荧光发射峰红移到455至477nm,在光物理和光化学领域有一定的潜在应用价值。
In this paper, LaAgL (L-nicotinic acid) complexes were prepared by self-assembly method using nicotinic acid as ligand, silver nitrate and lanthanum chloride as raw materials and treated ethanol as solvent. The structure of the complex was characterized. Fluorescence measurements showed that the fluorescence induced by the π-π * electron transition of the ligand niacin was quenched. The fluorescence band-like spectrum of the complex was mainly the MLCT transition of metal ions. The luminescence intensity of the complex is lower than that of the ligand, but its fluorescence emission peak is red shifted to 455 to 477nm, which has some potential applications in photophysics and photochemistry.