Luminescence from neodymium(III) in solution

被引：145

作者：

Beeby, A

Faulkner, S

机构：

[1] Department of Chemistry, University of Durham, Durham DH1 3LE, South Road

来源：

CHEMICAL PHYSICS LETTERS | 1997年 / 266卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(96)01520-5

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：

The luminescence lifetime of neodymium(III) in aqueous and organic solutions has been measured for the first time, and the effects of solvent deuteration on the excited state decay kinetics investigated. We have shown that the emissive F-4(3/2) state is very short lived in water, tau = 29 +/- 3 ns, and the lifetime increases significantly upon changing to D2O, tau = 152 +/- 7 ns. Complexing to polydentate ligands such as EDTA increases the lifetime due to the reduced solvation of the ion by water. In organic solvents the lifetime of the excited state of the ion is affected by both the presence of C-H and O-H oscillators; the latter are much more efficient at deactivating the excited state.

引用

页码：116 / 122

页数：7

共 22 条

[1]

BEEBY A, UNPUB

[2] STABILITY-CONSTANTS AND STRUCTURES OF LANTHANIDE(III)-ETHYLENE-DIAMINETETRAACETATE-HEXAMETHYLENE-DIAMINETETRAACETATE MIXED-LIGAND COMPLEXES [J].