Chiral Sign Induction by Vortices During the Formation of Mesophases in Stirred Solutions
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- 15 June 2001
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 292 (5524), 2063-2066
- https://doi.org/10.1126/science.1060835
Abstract
Achiral diprotonated porphyrins, forming homoassociates in aqueous solution, lead to spontaneous chiral symmetry breaking. The unexpected result is that the chirality sign of these homoassociates can be selected by vortex motion during the aggregation process. This result is confirmed by means of circular dichroism spectra. These experimental findings are rationalized in terms of the asymmetric influence of macroscopic forces on bifurcation scenarios and by considering the specific binding characteristics of the porphyrin units to form the homoassociates.Keywords
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