Luminescent and Thermal Properties of Sm^(3+) Complex with Salicylate and o-Phenanthroline Incorporated in Silica Matrix  

作　　者：徐存进 

机构地区：[1]Department of Chemistry, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education , Hangzhou Teachers College, Hangzhou 310036, China

出　　处：《Journal of Rare Earths》2006年第4期429-433,共5页稀土学报（英文版）

基　　金：Project supported bythe Science and Research Planning Project of Zhejiang Provincial Education Department (0424XP18)

摘　　要：A ternary Sm（ Ⅲ ） complex with salicylate （sal-） and o-phenanthroline （phen） was synthesized and incorporated in silica matrix by sol-gel method. The luminescence behavior of the complex in silica gel was studied compared with that of the pure complex by means of emission, excitation spectra and thermogravimetic analysis. The results indicate that the fluorescence intensity ratio of the ^4G5/2→^6H9/2 transition to the ^4G5/2→^6H5/2 transition in silica gel doped with Sm（sal）3 （phen） is lower than that of the pure Sm（sal）3（phen）. The thermal stability of Sm（sal）3（phen） is enhanced greatly by the introduction of the complex into silica matrix. An isolated and chemical inert environment of the complex appears to be responsible for the thermal stability enhancement in silica gel.A ternary Sm（ Ⅲ ） complex with salicylate （sal-） and o-phenanthroline （phen） was synthesized and incorporated in silica matrix by sol-gel method. The luminescence behavior of the complex in silica gel was studied compared with that of the pure complex by means of emission, excitation spectra and thermogravimetic analysis. The results indicate that the fluorescence intensity ratio of the ^4G5/2→^6H9/2 transition to the ^4G5/2→^6H5/2 transition in silica gel doped with Sm（sal）3 （phen） is lower than that of the pure Sm（sal）3（phen）. The thermal stability of Sm（sal）3（phen） is enhanced greatly by the introduction of the complex into silica matrix. An isolated and chemical inert environment of the complex appears to be responsible for the thermal stability enhancement in silica gel.

关 键 词：sol-gel method silica gel samarium complex rare earths 

分 类 号：O482.3[理学—固体物理] O614.33[理学—物理]