Author:
Holý Petr,Podlaha Jaroslav,Císařová Ivana,Závada Jiří
Abstract
Self-assembly of three 1,1'-biphenyl-2,2',6,6'-tetracarboxamides 2a-2c differing each from the other by substitution at the amidic nitrogens (R = H, ethyl and 1-(R)-phenylethyl, respectively) was investigated by single crystal X-ray diffraction analysis. It was found that the unsubstituted tetracarboxamide 2a gives rise to infinite hydrogen-bonded 2D network composed from chiral cyclotetrameric squares (D4 symmetry). Such self-assembling pattern is suppressed by alkyl substitution in 2b and 2c, which disfavours formation of intermolecular amide-amide hydrogen bonds.
Publisher
Institute of Organic Chemistry & Biochemistry
Cited by
8 articles.
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