Zhu Li-Cai
School of Chemistry and the Environment, South China Normal University, Guangzhou 510631, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2010 Nov 20;66(Pt 12):o3225. doi: 10.1107/S1600536810047082.
The asymmetric unit of the title compound, C(7)H(6)O(4)·C(5)H(5)N, consists of one 3,4-dihy-droxy-benzoic acid and one pyridine mol-ecule, both located on general positions. The 3,4-dihy-droxy-benzoic acid mol-ecules are arranged in layers and are connected by inter-molecular O-H⋯O hydrogen bonding, forming channels along the a axis in which the pyridine mol-ecules are located. The pyridine and the acid mol-ecules are additionally linked by strong O-H⋯N hydrogen bonding and by weak π-π stacking inter-actions with centroid-centroid distances between the pyridine rings of 3.727 (2) Å.
标题化合物C₇H₆O₄·C₅H₅N的不对称单元由一个3,4-二羟基苯甲酸分子和一个吡啶分子组成，二者均位于一般位置。3,4-二羟基苯甲酸分子排列成层，并通过分子间O—H⋯O氢键相连，沿a轴形成通道，吡啶分子位于其中。吡啶和酸分子还通过强O—H⋯N氢键以及吡啶环间质心距离为3.727 (2) Å的弱π-π堆积相互作用相连。
