配合物Eu(C_5H_8NO_3)_2(C_3H_5N_2)_2Cl_3·3H_2O光致发光性能  

Photoluminescence of Solid Complex Eu(C_5H_8NO_3)_2(C_3H_5N_2)_2Cl_3·3H_2O

作　　者：王艳[1] 聂光华[1] 但悠梦[1] 杨一心[2] 

机构地区：[1]湖北民族学院化学与环境工程学院,湖北省恩施市445000 [2]西北大学化学系,西安市710069

出　　处：《光谱实验室》2006年第6期1131-1134,共4页Chinese Journal of Spectroscopy Laboratory

基　　金：陕西省教育厅专项基金(04JK1433);湖北民族学院科研基金(2005LB003)

摘　　要：利用OPO激光激发光谱和三维荧光光谱研究了配合物Eu(C5H8NO3)2(C3H5N2)2C l3.3H2O固体粉末在不同激发光源下的荧光特性,测试了不同浓度配合物水溶液的荧光光谱。固体荧光结果显示该配合物具有很好的荧光性能,当激发光波长为320—400nm时,产生波长分别为400—500nm、580—620nm及690—710nm的三个荧光区;当激发光波长为700—880nm时产生峰值为450nm升频转换荧光,激发光波长为700—800nm时产生峰值分别为590nm和615nm的升频转换荧光。溶液荧光结果表明在1-0 4—10-2m ol/L浓度范围内荧光强度与溶液浓度呈正相关。对其可能的发光机制进行了探讨。The fluorescence of the complex （C5H8NO3）2（C3H5N2）2Cl3·3H2O at different excitation lamp was investigated by using OPO laser excitation spectra and three-dimension fluorescence spectra. The fluorescence spectra of the complex in aqueous solution at different concentrations were tested. The fluorescent results of the solid indicate that the complex has good luminescence property. Under excitation of the light in 320-400nm, the complex can emit fluorescence at the zone of 400-500nm, 580-620nm and 690-710nm. As the wavelength of the excitation light is in 700-880nm,the complex can emit up-conversion fluorescence with the peak of 450nm,while the complex can emit up-conversion fluorescence with the peak of 590nm and 615nm as the wavelength of the excitation light is in 700-800nm, In the concentration range of 10^-4-10^-2 mol/L, fluorescence intensity of the complex is proportional to its concentration. The possible intermolecular energy transfer mechanism was discussed.

关 键 词：铕配合物 光致发光 荧光光谱 

分 类 号：O657.32[理学—分析化学]