2-氨基-5-氯吡啶鎓 2-羧基苯甲酸酯-苯-1,2-二羧酸（3/1）
2-Amino-5-chloro-pyridinium 2-carb-oxy-benzoate-benzene-1,2-dicarb-oxy-lic acid (3/1).
作者信息
Hemamalini Madhukar, Fun Hoong-Kun
机构信息
X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia.
出版信息
Acta Crystallogr Sect E Struct Rep Online. 2010 Sep 11;66(Pt 10):o2535. doi: 10.1107/S1600536810035853.
The asymmetric unit of the title compound, 3C(5)H(6)ClN(2) (+)·3C(8)H(5)O(4) (-)·C(8)H(6)O(4), contains three independent 2-amino-5-chloro-pyridinium cations, three independent hydrogen phthal-ate anions and one phthalic acid mol-ecule. In the crystal structure, there are two kinds of supra-molecular tapes. One is formed by two independent cations with two anions through N-H⋯O and C-H⋯O hydrogen bonds. Another one is formed by the other cation and anion, and the phthalic acid mol-ecule via N-H⋯O, O-H⋯O and C-H⋯O hydrogen bonds. These two tapes are connected by an O-H⋯O hydrogen bond, forming a double-tape structure.
标题化合物3C₅H₆ClN₂⁺·3C₈H₅O₄⁻·C₈H₆O₄的不对称单元包含三个独立的2-氨基-5-氯吡啶鎓阳离子、三个独立的邻苯二甲酸氢根阴离子和一个邻苯二甲酸分子。在晶体结构中，存在两种超分子带。一种是由两个独立的阳离子与两个阴离子通过N-H⋯O和C-H⋯O氢键形成的。另一种是由另一个阳离子、阴离子以及邻苯二甲酸分子通过N-H⋯O、O-H⋯O和C-H⋯O氢键形成的。这两种带通过O-H⋯O氢键相连，形成了一种双带结构。
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