由均苯三甲酸和吡嗪 N,N'-二氧化物构成的超分子梯状网络。
A supramolecular ladder-like network from trimesic acid and pyrazine N,N'-dioxide.
作者信息
Yadav Vitthal N, Görbitz Carl Henrik
机构信息
Department of Chemistry, University of Oslo, Post Box 1033, Blindern 0315, Norway.
出版信息
Acta Crystallogr C Struct Chem. 2014 Jan;70(Pt 1):43-5. doi: 10.1107/S2053229613032737. Epub 2013 Dec 7.
In the title complex, benzene-1,3,5-tricarboxylic acid-pyrazine N,N'-dioxide (2/1), C9H6O6·0.5C4H4N2O2, cocrystallized trimesic acid (TMA) and pyrazine N,N'-dioxide (PNO) molecules form strong O-H...O hydrogen bonds, but also important weak C-H...O and dipole-dipole intermolecular interactions, to generate a densely packed three-dimensional network. PNO molecules lie on inversion centres where they connect pairs of TMA sheets into distinct two-dimensional hydrogen-bonded layers perpendicular to the crystallographic ab diagonal.
在标题配合物苯-1,3,5-三甲酸-吡嗪 N,N'-二氧化物(2/1)，即 C9H6O6·0.5C4H4N2O2 中，共结晶的均苯三甲酸(TMA)和吡嗪 N,N'-二氧化物(PNO)分子形成了强 O-H...O 氢键，同时还有重要的弱 C-H...O 和偶极-偶极分子间相互作用，从而生成一个紧密堆积的三维网络。PNO 分子位于对称中心，在那里它们将 TMA 片层对连接成垂直于晶体 ab 对角线的独特二维氢键层。
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