摘要
合成了九种不同摩尔比的苯基苯甲酰甲基亚砜高氯酸镝、铥异核配合物,通过元素分析、稀土滴定确定其组成为(DyxTmy)L5(ClO4)3.2H2O(x∶y=1.000∶0.000,0.999∶0.001,0.995∶0.005,0.990∶0.010,0.900∶0.100,0.800∶0.200,0.700∶0.300,0.600∶0.400,0.500∶0.500,L=C6H5SOCH2COC6H5)。红外光谱及摩尔电导表明,配体通过亚砜基上的氧原子与稀土离子配位,羰基氧不参与配位,三个ClO4-均在外界不参与配位。荧光光谱表明:当Tm3+的掺入量在0.001~0.300 mol之间时,对Dy3+的荧光有极强的敏化作用,且当Tm3+的掺入量为0.010 mol时,敏化强度最大,可使Dy3+荧光强度增加246%。
Nine different proportional complexes of different nuclear rare earth perchlorate （Dy^3＋ and Tm^3＋ are mixed） with phenyl-phenacyl sulfoxide （L=C4 H5COCH2 SOC6H5） have been synthesized and characterized. Element analysis and coordination titration studies suggest that the complexes have the composition of （DyxTmy）L5 （ClO4）3 · 2H2O（x ： y= 1. 000 ： 0. 000, 0.999 ： 0.001, 0.995 ： 0.005, 0.990 ： 0.010, 0.900 ： 0. 100, 0.800 ： 0.200, 0.700 ： 0.300, 0.600 ： 0.400, 0.500 ： 0.500）. IR studies indicate that the ligand is bonded with RE（Ⅲ） through one oxygen atom in sulfoxyl group, and the oxygen atom in carbonyl group did not bond. The molar conductivities measured in the DMF solution indicate that three inorganic anions ClO4 are non-coordinated. The fluorescence emission intensity of Dy^3＋ complexes would be enhanced strongly by mixing Tm^3＋. Tm^3＋ has the best sensitization to the fluorescence of Dy^3＋ in the ratio of 0. 990 ： 0. 010. The fluorescence intensity can be increased to 246%.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2007年第12期2527-2530,共4页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金项目(20461002)
内蒙古大学"513"二层次人才基金资助
关键词
苯基苯甲酰甲基亚砜
荧光增强效应
高氯酸异核配合物
Phenyl-phenacyl sulfoxide
Fluorescence enhancement effects Different nuclear perchlorate
