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Issue 10, 2007
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Aryl–perfluoroaryl stacking interactions, hydrogen bonding and steric effects in controlling the structure of supramolecular assemblies of N,N′-diaryloxalamides

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Abstract

Cocrystallization of N,N′-diaryloxalamides with pentafluorophenol (pfp) leads to 1 : 2 molecular complexes, which were characterized by X-ray crystallography. The non-planar oxalamide molecules and pfp assemble into polymeric tapes with use of the N–H⋯O and O–H⋯O hydrogen bonds and phenyl–perfluorophenyl interactions, whereas the molecules adopting planar conformations form with pfp flat trimers held together by intermolecular hydrogen bonds creating two 7-membered rings.

Graphical abstract: Aryl–perfluoroaryl stacking interactions, hydrogen bonding and steric effects in controlling the structure of supramolecular assemblies of N,N′-diaryloxalamides

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Supplementary files

Article information


Submitted
25 Jun 2007
Accepted
20 Jul 2007
First published
09 Aug 2007

CrystEngComm, 2007,9, 868-872
Article type
Communication

Aryl–perfluoroaryl stacking interactions, hydrogen bonding and steric effects in controlling the structure of supramolecular assemblies of N,N′-diaryloxalamides

B. Piotrkowska, M. Gdaniec, M. J. Milewska and T. Połoński, CrystEngComm, 2007, 9, 868
DOI: 10.1039/B709654B

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