(E)-4-[2-(3,4,5-Trimethoxyphenyl)ethenyl]nitrobenzene and its 'bridge-flipped' analogues

被引：2
|
作者：
Collas, Alain [1 ]
Blockhuys, Frank [1 ]
机构：
[1] Univ Antwerp, Dept Chem, B-2610 Antwerp, Belgium
来源：
ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY | 2011年 / 67卷
关键词：
D O I：
10.1107/S0108270111030952
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The solid-state structures of three push-pull acceptor-pi-donor (A-pi-D)systems differing only in the nature of the pi-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 (P2(1)2(1)2(1)) and is, therefore, a potential material for second-harmonic generation (SHG).
引用
收藏
页码：O364 / O369
页数：6
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