Title
(E)-4-[2-(3,4,5-Trimethoxyphenyl)ethenyl]nitrobenzene and its `bridge-flipped' analogues (E)-4-[2-(3,4,5-Trimethoxyphenyl)ethenyl]nitrobenzene and its `bridge-flipped' analogues
Author
Faculty/Department
Faculty of Sciences. Chemistry
Publication type
article
Publication
Copenhagen ,
Subject
Chemistry
Source (journal)
Acta crystallographica: section C: crystal structure communications. - Copenhagen
Volume/pages
67(2011) :9 , p. O364-O369
ISSN
0108-2701
ISI
000294457200006
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The solid-state structures of three pushpull acceptor-π-donor (A-π-D) systems differing only in the nature of the π-spacer have been determined. (E)-1-Nitro-4-[2-(3,4,5-trimethoxyphenyl)ethenyl]benzene, C17H17NO5, (I), and its `bridge-flipped' imine analogues, (E)-3,4,5-trimethoxy-N-(4-nitrobenzylidene)aniline, C16H16N2O5, (II), and (E)-4-nitro-N-(3,4,5-trimethoxybenzylidene)aniline, C16H16N2O5, (III), display different kinds of supramolecular networks, viz. corrugated planes, a herringbone pattern and a layered structure, respectively, all with zero overall dipole moments. Only (III) crystallizes in a noncentrosymmetric space group (P212121) and is, therefore, a potential material for second-harmonic generation (SHG).
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