Vortexes and Nanoscale Chirality

J‐aggregates respond dynamically to vortexes created by stirring. The CD signal inverts with stirring sense and its intensity increases. Prolonged stirring leads to deposition of chiral aggregates on the cuvette wall, the chirality of the deposits depends on the stirring sense. Stirring shifts the e...

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Published in:Angewandte Chemie (International ed.) 2010-01, Vol.49 (1), p.108-112
Main Authors: D'Urso, Alessandro, Randazzo, Rosalba, Lo Faro, Letizia, Purrello, Roberto
Format: Article
Language:English
Subjects:
aggregation
chirality
circular dichroism
porphyrinoids
vortex
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description J‐aggregates respond dynamically to vortexes created by stirring. The CD signal inverts with stirring sense and its intensity increases. Prolonged stirring leads to deposition of chiral aggregates on the cuvette wall, the chirality of the deposits depends on the stirring sense. Stirring shifts the equilibrium of a racemic mixture towards the side chosen (and favored) by the stirring sense (see picture, CW=clockwise, CCW=counter clockwise stirring).
doi_str_mv 10.1002/anie.200903543
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subjects aggregation
chirality
circular dichroism
porphyrinoids
vortex
title Vortexes and Nanoscale Chirality
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