We thank Masao Ishii (Institute of Multidisciplinary Research for Advanced Materials, Tohoku University) for the scanning electron microscopy measurements. We acknowledge Dr. Haruo Aikawa (Graduate School of Pharmaceutical Sciences, Tohoku University) for the helpful discussions. This work was financially supported by the Japan Society for Promotion of Science (JSPS).
Two-Component Gel Formation by Pseudoenantiomeric Ethynylhelicene Oligomers†
Article first published online: 16 FEB 2010
Copyright © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Angewandte Chemie International Edition
Volume 49, Issue 11, pages 1995–1999, March 8, 2010
How to Cite
Amemiya, R., Mizutani, M. and Yamaguchi, M. (2010), Two-Component Gel Formation by Pseudoenantiomeric Ethynylhelicene Oligomers. Angew. Chem. Int. Ed., 49: 1995–1999. doi: 10.1002/anie.200906693
- Issue published online: 3 MAR 2010
- Article first published online: 16 FEB 2010
- Manuscript Received: 27 NOV 2009
- Japan Society for Promotion of Science (JSPS)
- circular dichroism;
- sol–gel processes
Long and winding gel: Mixtures of (M)- and (P)-ethynylhelicene oligomers (see structure) differing in the numbers of helicene units formed organogels in toluene, which exhibited better thermoreversibility in the sol–gel process than those formed from enantiomers. Various two-component gels were obtained by changing the combination of the component pseudoenantiomeric oligomers, provided that they were larger than a trimer.