Long-lived near-infrared MLCT emitters

被引：54

作者：

Treadway, JA

Strouse, GF

Ruminski, RR

Meyer, TJ

机构：

[1] Univ N Carolina, Dept Chem, Chapel Hill, NC 27599 USA

[2] Univ Colorado, Dept Chem, Colorado Springs, CO 80933 USA

来源：

INORGANIC CHEMISTRY | 2001年 / 40卷 / 18期

关键词：

D O I：

10.1021/ic010660k

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A series of near-infrared emitters based on metal-to-ligand charge transfer (MLCT) excited states has been prepared. In the series, systematic variation of the coordinated ligands in polypyridyl complexes of RuII and OsII are used to vary the excited-to-ground-state energy gap. Emission energies are shifted by a combination of electron donor ligands and ligands with low-energy π* acceptor orbitals. Excited-state lifetimes are enhanced by use of acceptor ligands which are rigid and extensively delocalized. Emission from [(Ru(bpy)2)2(dpop)]4+ in acetonitrile is illustrated, along with a spectrum calculated by using a standard Franck-Condon analysis of the spectral profile.

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收藏

页码：4508 / 4509

页数：2

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