Publication
Title
Conformational polymorphism of (E,E)-N,N′-bis(4-nitrobenzylidene)benzene-1,4-diamine
Author
Abstract
Two polymorphs of (E,E)-N,N′-bis(4-nitrobenzylidene)benzene-1,4-diamine, C20H14N4O4, (I), have been identified. In each case, the molecule lies across a crystallographic inversion centre. The supramolecular structure of the first polymorph, (I-1), features stacking based on ππ interactions assisted by weak hydrogen bonds involving the nitro groups. The second polymorph, (I-2), displays a perpendicular arrangement of molecules linked via the nitro groups, combined with weak CH...O hydrogen bonds. Both crystal structures are compared with that of the carbon analogue (E,E)-1,4-bis[2-(4-nitrophenyl)ethenyl]benzene, (II).
Language
English
Source (journal)
Acta crystallographica: section C: crystal structure communications. - Copenhagen
Publication
Copenhagen : 2011
ISSN
0108-2701
Volume/pages
67:5(2011), p. o171-o174
ISI
000290223300021
Full text (Publisher's DOI)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 28.06.2011
Last edited 01.12.2017
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