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Issue 24, 2019
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Theobromine and direct arylation: a sustainable and scalable solution to minimize aggregation caused quenching

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Abstract

A green and scalable method to synthesize organic luminophores with minimal aggregation caused quenching (ACQ) is reported where direct arylation is used to attach alkylated theobromine moieties onto luminophores. The resulting compounds demonstrated high photoluminescence quantum yields (PLQYs) in solution and as aggregates. The minimized ACQ can be ascribed to the large dihedral angles that theobromine moieties introduce into these molecules, preventing π–π interactions between the luminophores. Furthermore, the large dihedral angles promote the formation of hybridized local and charge-transfer states in these molecules. Finally, amplified spontaneous emission measurements were performed to explore their potential in lasers.

Graphical abstract: Theobromine and direct arylation: a sustainable and scalable solution to minimize aggregation caused quenching

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Supplementary files

Article information


Submitted
29 Sep 2019
Accepted
13 Nov 2019
First published
13 Nov 2019

Green Chem., 2019,21, 6600-6605
Article type
Communication

Theobromine and direct arylation: a sustainable and scalable solution to minimize aggregation caused quenching

Y. Huang, Y. Liu, P. J. W. Sommerville, W. Kaminsky, D. S. Ginger and C. K. Luscombe, Green Chem., 2019, 21, 6600
DOI: 10.1039/C9GC03391B

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