On the dependence of the luminescence intensity of rare-earth compounds with pressure:: a theoretical study of Eu(TTF)32H2O in polymeric solution and crystalline phases

被引:51
作者
Malta, OL [1 ]
Silva, FRGE [1 ]
Longo, R [1 ]
机构
[1] Univ Fed Pernambuco, Dept Quim Fundamental, BR-50740540 Recife, PE, Brazil
关键词
D O I
10.1016/S0009-2614(99)00556-4
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
Theoretical models for ligand-rare-earth-ion energy-transfer processes and numerical solutions of the rate equations are used to analyse the dependence of the 4f-4f emission intensity and the D-5(0) excited state lifetime with an applied external pressure, in Eu3+ complexes. Pathways for the intramolecular energy-transfer process between the ligands and the rare-earth ion are proposed. The theoretical results agree well with the experimental data for the Eu(TTF)(3)2H(2)O compound in a polymeric solution and crystalline form. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:518 / 526
页数:9
相关论文
共 16 条