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Mesoscopic correlation of supramolecular chirality in one-dimensional hydrogen-bonded assemblies

The ordering of 4-[trans-2-(pyrid-4-yl-vinyl)] benzoic acid, a two-dimensional chiral species, was studied by scanning tunneling microscopy at noble metal surfaces. Homochiral molecules self-assemble in supramolecular chiral hydrogen-bonded twin chains, which order in nanogratings where the supramol...

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Bibliographic Details
Published in:Physical review letters 2001-08, Vol.87 (9), p.096101-096101, Article 096101
Main Authors: Weckesser, J, De Vita, A, Barth, J V, Cai, C, Kern, K
Format: Article
Language:English
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Summary:The ordering of 4-[trans-2-(pyrid-4-yl-vinyl)] benzoic acid, a two-dimensional chiral species, was studied by scanning tunneling microscopy at noble metal surfaces. Homochiral molecules self-assemble in supramolecular chiral hydrogen-bonded twin chains, which order in nanogratings where the supramolecular chirality is strictly correlated over the entire microm domains without intimate molecular contact. Model simulations indicate that the underlying mesoscopic chiral resolution is associated with twin chains acting as chiroselective templates for transient molecular attachment, which process mediates the gratings' evolution.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.87.096101