Higher excited state fluorescence of mixed ligand lanthanide(III) complexes with acetylacetonato, nitrate and terpyridine

被引：16

作者：

Hasegawa, M

Nakao, A

Masui, M

Tamura, T

Suzuki, D

Linert, W

Fukuda, Y

Hoshi, T

机构：

[1] Aoyama Gakuin Univ, Coll Sci & Engn, Dept Chem, Setagaya Ku, Tokyo 1578572, Japan

[2] Ochanomizu Univ, Fac Sci, Dept Chem, Bunkyo Ku, Tokyo 1128610, Japan

[3] Vienna Univ Technol, Inst Inorgan Chem, A-1060 Vienna, Austria

来源：

CHEMICAL PHYSICS | 2001年 / 269卷 / 1-3期

基金：

奥地利科学基金会;

关键词：

absorption spectra; fluorescence spectra; lanthanides;

D O I：

10.1016/S0301-0104(01)00341-X

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：

Electronic absorption, polarized absorption and fluorescence spectra were measured to clarify the electronic structures and the nature of elect Tonic transitions of [Nd(acac)(terpy)(NO3)(2)] and [Pr(acac)(terpy)(NO3)(2)H2O]. It is found for both complexes that the nn; transition is localized on the terpyridine moiety whereas the nn; transition can be assigned to the intramolecular CT transition from the terpyridine moiety (pi HOMO) to the acetylacetone (pi LUMO). [Nd(acac)(terpy)(NO3)(2)] (or [Pr(acac)(terpy)(NO3)(2)N2O]) fluoresces from the upper excited state localized on the terpyridine moiety. This emission phenomenon is considered in detail because emissions from higher excited states are rarely observed. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：323 / 337

页数：15

共 52 条

[1] SCHIFF-BASE COMPLEXES OF THE LANTHANOIDS AND ACTINOIDS .3. LANTHANOID(III), CERIUM(IV), THORIUM(IV), AND URANIUM(IV) COMPLEXES WITH NN'-ETHYLENEBIS(5-TERT-BUTYLSALICYLIDENEIMINE) - H-1-NMR AND OTHER SPECTROSCOPIC PROPERTIES [J].