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2-氨基对苯二甲酸-4,4'-联吡啶(1/1)

2-Amino-terephthalic acid-4,4'-bipyridine (1/1).

作者信息

Xiao Wenzhi, Xue Ruiting, Yin Yansheng

出版信息

Acta Crystallogr Sect E Struct Rep Online. 2011 Jun 1;67(Pt 6):o1333. doi: 10.1107/S1600536811016448. Epub 2011 May 7.

DOI:10.1107/S1600536811016448
PMID:21754729
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3120464/
Abstract

The asymmetric unit of the title compound, C(10)H(8)N(2)·C(8)H(7)NO(4), contains two half-mol-ecules, which constitute a 1:1 co-crystal. The 2-amino-terephthalic acid mol-ecule is situated on an inversion center being disordered between two orientations in a 1:1 ratio. In the 4,4'-bipyridine mol-ecule, which is situated on a twofold rotational axis, the two pyridine rings form a dihedral angle of 37.5 (1)°. In the crystal, mol-ecules are held together via inter-molecular N-H⋯O and O-H⋯N hydrogen bonds. The crystal packing exhibits π-π inter-actions between the aromatic rings with a centroid-centroid distance of 3.722 (3) Å.

摘要

标题化合物C(10)H(8)N(2)·C(8)H(7)NO(4)的不对称单元包含两个半分子,它们构成了1:1的共晶体。2-氨基对苯二甲酸分子位于一个对称中心上,在两种取向之间以1:1的比例无序排列。位于二重旋转轴上的4,4'-联吡啶分子中,两个吡啶环形成的二面角为37.5 (1)°。在晶体中,分子通过分子间的N-H⋯O和O-H⋯N氢键结合在一起。晶体堆积显示出芳香环之间的π-π相互作用,质心间距为3.722 (3) Å。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/acee/3120464/9db590cec968/e-67-o1333-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/acee/3120464/9db590cec968/e-67-o1333-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/acee/3120464/9db590cec968/e-67-o1333-fig1.jpg

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