The Use of Prochiral Centers for Demonstrating Asymmetric Stacking in Aggregates of Azulenylazulenium Cyanine Dyes

The Use of Prochiral Centers for Demonstrating Asymmetric Stacking in Aggregates of Azulenylazulenium Cyanine Dyes

The diastereotopic methyl signals detected at low temperatures or high concentrations of an azulenylazulenium salt containing prochiral centers are consistent only with a model involving monomers in rapid equilibration with dimers in the staggered (“brickwork”) arrangement and not in the “card-stack...

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Bibliographic Details
Published in:Organic letters Vol. 2; no. 17; pp. 2559 - 2562
Main Authors: Asato, Alfred E, Watanabe, Dana T, Liu, Robert S. H
Format: Journal Article
Language:English
Published: United States American Chemical Society 24-08-2000
Online Access:Get full text
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Summary:The diastereotopic methyl signals detected at low temperatures or high concentrations of an azulenylazulenium salt containing prochiral centers are consistent only with a model involving monomers in rapid equilibration with dimers in the staggered (“brickwork”) arrangement and not in the “card-stacked” arrangement.
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ISSN:1523-7060
1523-7052
DOI:10.1021/ol005942n