Issue 7, 2015

A coumarin based gold(i)-alkynyl complex: a new class of supramolecular hydrogelators

Abstract

A phosphine-gold(I)-alkynyl-coumarin complex, [Au{7-(prop-2-ine-1-yloxy)-1-benzopyran-2-one}(DAPTA)] (1), was synthesized and the formation of long luminescent fibers in solution was characterized via fluorescence microscopy and dynamic light scattering. The fibers presented strong blue and green luminescence, suggesting that the gold(I) in the complex increased intersystem crossing due to the heavy atom effect, resulting in a significant increase in triplet emission. The X-ray structure of the fibers indicates that both aurophilic, π–π interactions and hydrogen bonding contribute to their formation in aqueous solvents.

Graphical abstract: A coumarin based gold(i)-alkynyl complex: a new class of supramolecular hydrogelators

Supplementary files

Article information

Article type
Paper
Submitted
29 Sep 2014
Accepted
05 Dez 2014
First published
05 Dez 2014
This article is Open Access
Creative Commons BY-NC license

Org. Biomol. Chem., 2015,13, 2026-2033

Author version available

A coumarin based gold(I)-alkynyl complex: a new class of supramolecular hydrogelators

A. J. Moro, B. Rome, E. Aguiló, J. Arcau, R. Puttreddy, K. Rissanen, J. C. Lima and L. Rodríguez, Org. Biomol. Chem., 2015, 13, 2026 DOI: 10.1039/C4OB02077D

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