Chiral Sign Induction by Vortices During the Formation of Mesophases in Stirred Solutions-Reference-Cited by-同舟云学术

Chiral Sign Induction by Vortices During the Formation of Mesophases in Stirred Solutions

Published:2001-06-15 Issue:5524 Volume:292 Page:2063-2066
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Ribó Josep M.¹,Crusats Joaquim¹,Sagués Francesc²,Claret Josep²,Rubires Raimon¹

Affiliation:

1. Department of Organic Chemistry,

2. Department of Physical Chemistry, University of Barcelona, Martı́ i Franquès 1, 08028-Barcelona, Catalonia, Spain.

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.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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5. Chiral Symmetry Breaking in Sodium Chlorate Crystallization

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