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2,3-二氨基吡啶鎓 6-羧基吡啶-2-羧酸酯

2,3-Diamino-pyridinium 6-carb-oxy-pyridine-2-carboxyl-ate.

作者信息

Foroughian Mahsa, Foroumadi Alireza, Notash Behrouz, Bruno Giuseppe, Amiri Rudbari Hadi, Aghabozorg Hossein

出版信息

Acta Crystallogr Sect E Struct Rep Online. 2011 Dec 1;67(Pt 12):o3325. doi: 10.1107/S1600536811047647. Epub 2011 Nov 16.

DOI:10.1107/S1600536811047647
PMID:22199823
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3238974/
Abstract

The asymmetric unit of the title proton-transfer compound, C(5)H(8)N(3) (+)·C(7)H(4)NO(4) (-), consists of one mono-deprotonated pyridine-2,6-dicarb-oxy-lic acid as anion and one protonated 2,3-diamino-pyridine as cation. The crystal packing shows extensive O-H⋯O, N-H⋯O and N-H⋯N hydrogen bonds. Thre are also several π-π inter-actions between the anions and also between the cations [centriod-centroid distances = 3.6634 (7), 3.7269 (7), 3.6705 (7) and 3.4164 (7) Å].

摘要

标题质子转移化合物C(5)H(8)N(3) (+)·C(7)H(4)NO(4) (-)的不对称单元由一个单去质子化的吡啶-2,6-二羧酸作为阴离子和一个质子化的2,3-二氨基吡啶作为阳离子组成。晶体堆积显示出广泛的O-H⋯O、N-H⋯O和N-H⋯N氢键。阴离子之间以及阳离子之间也存在几种π-π相互作用[质心-质心距离 = 3.6634 (7)、3.7269 (7)、3.6705 (7)和3.4164 (7) Å]。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f898/3238974/736f64aa4d75/e-67-o3325-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f898/3238974/5c317c84d7c1/e-67-o3325-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f898/3238974/84f959847808/e-67-o3325-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f898/3238974/736f64aa4d75/e-67-o3325-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f898/3238974/5c317c84d7c1/e-67-o3325-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f898/3238974/84f959847808/e-67-o3325-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f898/3238974/736f64aa4d75/e-67-o3325-fig3.jpg

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