摘要
合成了不同摩尔比的甲基苯甲酰甲基亚砜高氯酸铕、铥异核配合物和高氯酸铕、镨异核配合物(Eu1-xREx)(ClO4)3.L5.C2H5OH(RE=Tm、Pr,x=0.000~0.200,L=C6H5COCH2SOCH3)。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-有两个在内界参与了配位,而另一个在外界不参与配位。荧光光谱表明,当Tm3+和Pr3+的掺入量分别在0.001mol^0.01mol和0.001mol^0.100mol之间时,对Eu3+的荧光产生敏化作用,且Tm3+和Pr3+的掺入量都为0.001mol时,敏化强度最大,分别可使Eu3+荧光强度增加109%和137%。
Different proportional binuclear complexes (added Tm3+ and Pr3+ to Eu3+ ) of rare earth perchlorate with methylphenacyl sulfoxide were synthesized. Elemental analysis and mole conductivifies show that the complexes have a composition of (Eu1-xREx)(ClO4)3.L5.C2H5OH(RE=Tm、Pr,x=0.000-0.200,L=C6H5COCH2SOCH3), two ClO4- anions coordinated with Ln3+ and the other did not. IR spectra suggested the ligand coordinated with Ln3+ (Ln = Tm,Pr)by oxygen atom in sulfinyl group, the oxygen atom in carbonyl group did not bond. Fluorescence spectra indicated that Tm3 + and Pr3 + have most sensitization effect to Eu3+ when the ratio of Eu3+ :Ln3+ (Ln= Tm,Pr)is 0.999:0.001. The fluorescence intensity was increased to 109% and 137% respectively.
出处
《稀土》
EI
CAS
CSCD
北大核心
2008年第2期15-19,共5页
Chinese Rare Earths
基金
内蒙古高等学校科学研究项目资助(NJ06047)
内蒙古大学"513"二层次人才基金资助