异核高氯酸稀土苯基苯甲酰甲基亚砜配合物的合成、表征及荧光增强效应

合成并表征了五种不同比例异核高氯酸(铽和铥)与苯基苯甲酰甲基亚砜(L=C6H5COCH2SOC6H5)的固态配合物.经元素分析及差热-热重分析表明,组成为(TbxTmy)(ClO4)3*L5*2H2O(x∶y=0.995∶0.005,0.990∶0.010,0.950∶0.050,0.900∶0.100, 0.800∶0.200).红外光谱表明,配合物通过一个羰基氧和一个亚砜基氧与稀土离子配位.在丙酮溶液中测定的摩尔电导率表明,三个ClO-4,其中两个在内界,一个在外界.当铥掺入铽的配合物后,可有效提高配合物的荧光强度.当x∶y=0.995∶0.005时敏化强度最大,可使荧光强度增加至121%.

Synthesis and Characterization of Phenyl-phenacyl Sulfoxide Complexes with Different Nuclear Rare Earth Perchlorate and Fluorescence Enhance Effect

Five different proportional complexes of different nuclear rare earth perchlorate (Tb3+ and Tm3+ are mixed) with phenyl-phenacyl sulfoxide (L=C6H5COCH2SOC6H5) have been synthesized and characterized.Elemental analysis and TG-DTA studies suggest that the complexes have the composition of (TbxTmy)(ClO4)3*L5*2H2O(x∶y=0.995∶0.005,0.990∶0.010,0.950∶0.050,0.900∶0.100,0.800∶0.200).IR spectra studies indicate that the ligand are bonded with RE(Ⅲ) through one oxygen atom in carbonyl group and one oxygen atom in sulfoxyl group.The molar conductivities measured in the acetone solution indicate that two inorganic anions ClO-4 are coordinated and one is non-coodrinated.The fluorescence emission intensity of Tb3+ complexes would be enhanced by mixing Tm3+.Tm3+ has a good sensitization to the fluorescent of Tb3+ in the ratio of 0.995∶0.005.The fluorescence intensity can be increased to 121%.