LUMINESCENCE OF RARE EARTH COMPLEXES WITH m-METHYL AND o-CHLOROBENZOIC ACIDS

Zhang Hongjie; Ma Jianfang; Yang Kuiyue; Pan Lihua

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LUMINESCENCE OF RARE EARTH COMPLEXES WITH m-METHYL AND o-CHLOROBENZOIC ACIDS

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- LUMINESCENCE OF RARE EARTH COMPLEXES WITH m-METHYL AND o-CHLOROBENZOIC ACIDS
- Chinese Journal of Luminescence Vol. 17, Issue 1, Pages: 79-83(1996)
- 作者机构：
  
  中国科学院长春应用化学研究所稀土化学与物理开放实验室长春,130022
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：18 April 1995，
  
  Published：29 February 1996
- 稿件说明：
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张洪杰, 马建方, 杨魁跃, 潘利华. 间甲基和邻氯苯甲酸稀土配合物发光性能的研究[J]. 发光学报, 1996,17(1): 79-83

Zhang Hongjie, Ma Jianfang, Yang Kuiyue, Pan Lihua. LUMINESCENCE OF RARE EARTH COMPLEXES WITH m-METHYL AND o-CHLOROBENZOIC ACIDS[J]. Chinese Journal of Luminescence, 1996,17(1): 79-83
张洪杰, 马建方, 杨魁跃, 潘利华. 间甲基和邻氯苯甲酸稀土配合物发光性能的研究[J]. 发光学报, 1996,17(1): 79-83 DOI：

Zhang Hongjie, Ma Jianfang, Yang Kuiyue, Pan Lihua. LUMINESCENCE OF RARE EARTH COMPLEXES WITH m-METHYL AND o-CHLOROBENZOIC ACIDS[J]. Chinese Journal of Luminescence, 1996,17(1): 79-83 DOI：

摘要

本文研究了间甲基苯甲酸稀土配合物REL

(RE=Eu

Tb;HL=

-CH

H)和邻氯苯甲酸稀土配合物REL

·H

O(RE=EU·Tb;HL=ClC

H)的荧光性能

测量了配合物的激发和荧光光谱及其寿命

讨论了晶体结构对能级匹配、能量传递等光谱性质的影响.

Abstract

The luminescence properties of rare earth complexes with

-methylbenzoic acid REL

(RE=Eu

Tb; HL=

-CH

H) and with o-chlorobenzoic acid REL

O RE=Eu

Tb; HL=

-ClC

H) are reported in this paper. The influence of the coordination environment on energy transfer; the luminescence intensity and life time has been discussed.For Tb ions when the ligand in the complexes is changed

the position of the maximum of the excitation wavelength is displaced lightly

the emission of Tb-

is much stronger than that of Tb--Cl

and Tb-

has a longer decay. The luminescence phenomenon of Eu-

and Eu-Cl

however

is contrary

both Eu-

and Eu-Cl showstronger

→

transition of Eu

but Eu-Cl has a stronger emission intensity and longer lifetime. The reason for these results is believed to be due to the coordination environment of the complexes.Although there exist O-H bonds with high vibrational energy in Eu-Cl

the formation of hydrogen bonds may reduce the vibrational energy by increasing the rigidity of the complex. So the energy transmission can occur efficiently from ligand to Eu

and the emission of Eu-Cl is stronger than that of Eu-

. The deactivation via vibronic coupling is

however

less efficient for Tb

and the emission of Tb-

is stronger than that of Tb-Cl.

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Related Institution

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