Synthesis, separation, and circularly polarized luminescence studies of enantiomers of iridium(III) luminophores

被引：126

作者：

Coughlin, Frederick J. ^{[1
]}

Westrol, Michael S. ^{[1
]}

Oyler, Karl D. ^{[1
]}

Byrne, Neal ^{[2
]}

Kraml, Christina ^{[2
]}

Zysman-Colman, Eli ^{[1
]}

Lowry, Michael S. ^{[1
]}

Bernhard, Stefan ^{[1
]}

机构：

[1] Princeton Univ, Dept Chem, Princeton, NJ 08544 USA

[2] 201 Frick Lab, Lotus Separat, LLC, Princeton, NJ 08544 USA

来源：

INORGANIC CHEMISTRY | 2008年 / 47卷 / 06期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1021/ic701747j

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A family of heteroleptic (C boolean AND N)(2)Ir(acac) and homoleptic fac-Ir(C boolean AND N)(3) complexes have been synthesized and their photophysical properties studied (where C boolean AND N = a substituted 2-phenylpyridine and acac = acetylacetonate). The neutral Delta and Lambda complexes were separated with greater than 95% enantiomeric purity by chiral supercritical fluid chromatography, and the solution circular dichroism and circularly polarized luminescence spectra for each of the enantio-enriched iridium complexes were obtained. The experimentally measured emission dissymmetries (g(em)) for this series compared well with predicted values provided by time-dependent density functional theory calculations. The discovered trend further showed a correlation with the dissymmetries of ionic, enantiopure hemicage compounds of Ru(II) and Zn(II), thus demonstrating the applicability of the model for predicting emission dissymmetry values across a wide range of complexes.

引用

页码：2039 / 2048

页数：10

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