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Published in

National Academy of Sciences, Proceedings of the National Academy of Sciences, 12(114), p. 3044-3049, 2017

DOI: 10.1073/pnas.1702510114

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Metallacycle-cored supramolecular assemblies with tunable fluorescence including white-light emission

This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Significance Light-emitting materials have been widely studied for their promising applications in chemical and biological science. Here we report three phenanthrene-21-crown-7 functionalized fluorescent Pt(II) rhomboidal metallacycles which were then converted into fluorescent supramolecular oligomers by reacting with a bis-ammonium linker. One of these constructs shows concentration-dependent fluorescence in a wide color range, where orange emission at high concentration and blue emission at low concentration was observed. Moreover, at a concentration of 29 µM the same ensemble emits white light that has emerged from the integration of the complementary orange and blue color from the metallacycles and linker, respectively. This study shows how light-emitting materials can be obtained by the proper implementation of multiple orthogonal interactions in a single process.