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三种异构的（E）-硝基苯甲醛硝基苯腙：同构的（E）-2-硝基苯甲醛 3-硝基苯腙和（E）-3-硝基苯甲醛 2-硝基苯腙中的环链，以及（E）-4-硝基苯甲醛 2-硝基苯腙中的中心对称二聚体。

Three isomeric (E)-nitrobenzaldehyde nitrophenylhydrazones: chains of rings in isomorphous (E)-2-nitrobenzaldehyde 3-nitrophenylhydrazone and (E)-3-nitrobenzaldehyde 2-nitrophenylhydrazone, and centrosymmetric dimers in (E)-4-nitrobenzaldehyde 2-nitrophenylhydrazone.

作者信息

Ferguson George, Glidewell Christopher, Low John N, Skakle Janet M S, Wardell James L

机构信息

School of Chemistry, University of St Andrews, Fife KY16 9ST, Scotland.

出版信息

Acta Crystallogr C. 2005 Oct;61(Pt 10):o613-6. doi: 10.1107/S0108270105028799. Epub 2005 Sep 30.

DOI:10.1107/S0108270105028799
PMID:16210772
Abstract

The isomeric compounds (E)-2-nitrobenzaldehyde 3-nitrophenylhydrazone and (E)-3-nitrobenzaldehyde 2-nitrophenylhydrazone, both C13H10N4O4, are isomorphous and effectively isostructural, and in both, the molecules are disordered across centres of inversion in the space group P21/c. The molecules are linked into complex chains of rings by N-H...O and C-H...O hydrogen bonds. In the isomeric compound (E)-4-nitrobenzaldehyde 2-nitrophenylhydrazone, the fully ordered molecules are linked by N-HO hydrogen bonds into centrosymmetric dimers.

摘要

同分异构体（E）-2-硝基苯甲醛3-硝基苯腙和（E）-3-硝基苯甲醛2-硝基苯腙，二者化学式均为C13H10N4O4，是同晶型且有效等结构的，并且在这两种化合物中，分子在空间群P21/c中关于反演中心无序排列。分子通过N-H...O和C-H...O氢键连接成复杂的环链。在同分异构体（E）-4-硝基苯甲醛2-硝基苯腙中，完全有序的分子通过N-HO氢键连接成中心对称二聚体。

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