Reconfiguration of the Symmetry and Charge-Transfer Characteristics of a Triply Crowned 1,3,5-Tris(arylalkynyl)mesitylene by Successive Metal Ion Complexation
✍ Scribed by Gunther Hennrich; Knut Rurack; Monika Spieles
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 123 KB
- Volume
- 2006
- Category
- Article
- ISSN
- 1434-193X
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✦ Synopsis
Abstract
A triply benzocrown‐ether‐functionalized trialkynylmesitylene derivative with C~3~ symmetry as well as its linear analogue have been synthesized and their optical properties have been studied by UV/Vis absorption, steady‐state and time‐resolved fluorescencece spectroscopy. The spectroscopic investigation of the uncomplexed compounds revealed the nature of the electronic and excitonic communication pathway in the ground and excited states of the all‐meta‐substituted chromophore system. Upon cation complexation, the octopolar character of the free trialkynyl compound becomes dipolar and finally returns to octopolar in the fully complexed species. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)