Inside Cover: Molecular Polygons Probe the Role of Intramolecular Strain in the Photophysics of π-Conjugated Chromophores (Angew. Chem. Int. Ed. 5/2017)
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- 作者：Philipp Wilhelm ; Dr. Jan Vogelsang ; Georgiy Poluektov ; Nina Schö ; nfelder ; Tristan J. Keller ; Dr. Stefan-Sven Jester ; Prof. Dr. Sigurd Hö ; ger and Prof. Dr. John M. Lupton
- 刊名：Angewandte Chemie International Edition
- 出版年：2017
- 出版时间：January 24, 2017
- 年：2017
- 卷：56
- 期：5
- 页码：1162
- 全文大小：2337K
- ISSN：1521-3773
文摘
The π-system of conjugated macromolecules can be bent in a controlled fashion by incorporating chromophores in molecular polygon templates. This distortion is clearly seen in scanning-tunneling micrographs of the molecules. In their Communication on href="https://doi.org/10.1002/anie.201610723" rel="references:https://doi.org/10.1002/anie.201610723">page 1234 ff. S. Höger, J. M. Lupton et al. show that bending leads to isotropic polarization in absorption and fluorescence but also affects the elementary photophysics. On the single-molecule level, a correlation emerges between luminescence spectrum and lifetime, which arises from subtle variations in the bending radius between molecules.