Aggregation induced colour change for phosphorescent iridium(III) complex-based anionic surfactants

被引：57

作者：

Mauro, Matteo ^{[1
,2
]}

De Paoli, Gabriele ^{[1
,2
]}

Otter, Matthias ^{[1
,2
]}

Donghi, Daniela ^{[3
,4
]}

D'Alfonso, Giuseppe ^{[3
,4
]}

De Cola, Luisa ^{[1
,2
]}

机构：

[1] Univ Munster, Inst Phys, D-48149 Munster, Germany

[2] Ctr Nanotechnol CeNTech, D-48149 Munster, Germany

[3] Univ Milan, Dipartimento Chim Inorgan Metallorgan & Analit L, I-20133 Milan, Italy

[4] UdR INSTM Milano, I-20133 Milan, Italy

来源：

DALTON TRANSACTIONS | 2011年 / 40卷 / 45期

关键词：

CYCLOMETALATED IR(III) COMPLEXES; INTERLIGAND ENERGY-TRANSFER; EXCITED-STATES; RUTHENIUM METALLOSURFACTANTS; LUMINESCENT; PLATINUM(II); FILMS; PHOTOSENSITIZERS; MESOMORPHISM; ASSEMBLIES;

D O I：

10.1039/c1dt11251a

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

We describe a new class of water soluble metallosurfactant molecules based on luminescent neutral iridium(III) complexes. The compounds possess an alkyl chain terminated with a negatively charged group, a sulphate. Due to their amphiphilic nature they assemble in aggregates in water and their photophysical properties, as well as the morphological characterization of the assemblies are presented. In particular, UV-Vis absorption, steady-state and time-resolved emission spectroscopy, dynamic light scattering and scanning electron microscopy techniques have been employed towards the analysis of the assemblies in different media. Comparison with the single components shows that the aggregates have very different photophysical properties. Importantly, the change in colour upon self-assembly is a remarkable feature which could be used for the design of probes which can change properties in different environments.

引用

页码：12106 / 12116

页数：11

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