Eu^(3+)-β-二酮、三正辛胺三元配合物的合成与光谱特性  

Synthesis and spectral properties of Eu^(3+) complex with dibenzoyl methane and tri-n-octyl amine

作　　者：张颂培[1] 李建宇[1] 姜晓琳[1] 李云天[1] 陈鹃[1] 

机构地区：[1]北京工商大学化工学院,北京100037

出　　处：《化学试剂》2003年第3期137-138,144,共3页Chemical Reagents

摘　　要：合成了铕 (Ⅲ )的二苯甲酰甲烷、三正辛胺的三元配合物Eu3 + ·(DBM ) 3 · [N(C8H17) 3 ]2 ,通过元素分析确定了配合物的组成 ,并通过红外光谱对配合物进行了表征。结合红外光谱、荧光光谱讨论了配合物的成键特性、配体传能机制以及协同配体N(C8H17) 3 引入对激发光谱的影响。荧光光谱表明配合物可吸收 2 4 7～ 4 0 0nm的宽带紫外光 ,发射Eu3 + 的5D0 →7F2 对应的 6 12nm红色荧光。The ternary Eu 3+ complex with dibenzoyl methane (DBM )and tri n octyl amine \[N(C 8 H 17 ) 3 \] has been prepared. The composition of the complex was determined to be Eu 3+ ·(DBM) 3 ·\[N(C 8H 17 ) 3\] 2 by chemical and elemental analysis. This structure was further characterized by FT IR spectra. The bonding property and energy transfer mechanism in the Eu 3+ complex and the effect of the second ligand, N(C 8 H 17 ) 3 \], on the excitation spectra were discussed by FT IR and fluorescence spectra. Fluorescence spectrum showed that the complex could absorb wide band of ultraviolet light of 247～400nm region and emit 612nm red light related to transition of 5 D o → 7 F 2, on the excitation spectra were discussed by FT IR and fluorescence spectra. Fluorescence spectrum showed that the complex could absorb wide band of ultraviolet light of 247～400nm region and emit 612nm red light related to transition of 5 D o → 7 F 2 in Eu 3+ .The complex can be used as a light transfer agent in agricultural plastic films.

关 键 词：Eu^3+-β-二酮 三正辛胺 配合物 合成 光谱特性 铕(Ⅲ) 二苯甲酰甲烷 Eu^3+·(DBM)3·[N(C3H37)3]2 

分 类 号：O641.4[理学—物理化学] O657.3[理学—化学]