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Issue 45, 2011
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Aggregation induced colour change for phosphorescent iridium(III) complex-based anionic surfactants

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Abstract

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.

Graphical abstract: Aggregation induced colour change for phosphorescent iridium(iii) complex-based anionic surfactants

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Publication details

The article was received on 01 Jul 2011, accepted on 13 Sep 2011 and first published on 27 Oct 2011


Article type: Paper
DOI: 10.1039/C1DT11251A
Citation: Dalton Trans., 2011,40, 12106-12116
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    Aggregation induced colour change for phosphorescent iridium(III) complex-based anionic surfactants

    M. Mauro, G. De Paoli, M. Otter, D. Donghi, G. D'Alfonso and L. De Cola, Dalton Trans., 2011, 40, 12106
    DOI: 10.1039/C1DT11251A

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