摘要
合成了高氯酸铕二苯亚砜和不同物质量比的高氯酸 ( )、钬 ( )二苯亚砜异核配合物 (Eux Ho1 - x)(DPSO) 7(Cl O4) 3 。测定了配合物的组成、IR、粉晶荧光激发和发射光谱。荧光光谱表明 :虽然 Ho3 +的发射几率较高的 5S2 激发态能级高于 Eu3 +,但并未对 Eu3 +的发光产生敏化作用 ,相反当掺入 0 .0 0 2 mol的 Ho3 +时即对 Eu3 +的发光产生猝灭作用。另外从 Eu3 +的荧光光谱知 :5D0 → 7F2 的电偶极跃迁强度大大高于 5D0 → 7F1 的磁偶极跃迁 ,这表明铕 ( )在配合物晶体中处于非对称中心的位置。
Eu(DPSO) 7(ClO 4) 3 and Eu xHo 1-x(DPSO) 7(ClO 4) 3(DPSO as the abbreviation to diphenyl sulfoxide)have been synthesized.The coordination compounds have been studied by means of composition analysis,IR and fluorescent excitation and emission spectra.In the fluorescent spectra it was found that Ho 3+ion has quench effect to the fluorescence of Eu 3+ ion.The fluorescent emission intensity of europium perchlorate with diphenyl sulfoxide coordination compounds would be quenched by 0.002mol Ho 3+ in mixing.
出处
《稀土》
EI
CAS
CSCD
北大核心
2001年第6期16-19,共4页
Chinese Rare Earths
基金
内蒙古自然科学基金资助项目
