Theoretical modeling of thermally activated luminescence quenching through charge transfer states in lanthanide complexes

被引:39
作者
Faustino, W. M. [1 ]
Malta, O. L. [1 ]
de Sa, G. F. [1 ]
机构
[1] Univ Fed Pernambuco, CCEN, Dept Quim Fundamental, BR-50670901 Recife, PE, Brazil
关键词
D O I
10.1016/j.cplett.2006.08.059
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A theoretical approach for the luminescence thermal quenching through ligand-to-metal charge transfer (LMCT) states in lanthanide compounds is developed. Considering single configurational coordinate models for both LMCT and intra-ligand states, expressions for the spectral overlap integrals involving a donor state, 4f-state (case 1) or an intra-ligand state (case 2), and the LMCT, were obtained. Comparison between theoretical and experimental results of quantum efficiencies for some coordination compounds is quite satisfactory. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:595 / 599
页数:5
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