Bendjeddou Lamia, Farah Sara, Cherouana Aouatef
Laboratoire de Chimie Moléculaire, du Contrôle, de l'Environnement et des Mesures Physico-Chimiques, Faculté des Sciences Exactes, Département de Chimie, Université Mentouri de Constantine, 25000 Constantine, Algeria.
Acta Crystallogr Sect E Struct Rep Online. 2009 Jul 11;65(Pt 8):o1839-40. doi: 10.1107/S1600536809026427.
In the title compound, C(7)H(8)NO(2) (+)·0.5C(2)O(4) (2-), the asymmetric unit consists of an 3-carboxy-anilinium cation, and one-half of an oxalate anion, which lies on a twofold rotation axis. The crystal packing is consolidated by inter-molecular N-H⋯O and O-H⋯O hydrogen bonds. The structure is built from infinite chains of cations and oxalate anions extending parallel to the b and c axes. The crystal studied was a non-merohedral twin. The ratio of the twin components refined to 0.335 (3):0.665 (3).
在标题化合物C₇H₈NO₂⁺·0.5C₂O₄²⁻中，不对称单元由一个3-羧基苯胺阳离子和位于二重旋转轴上的半个草酸根阴离子组成。晶体堆积通过分子间的N-H⋯O和O-H⋯O氢键得以巩固。结构由平行于b轴和c轴延伸的阳离子和草酸根阴离子的无限链构成。所研究的晶体为非等轴孪晶。孪晶组分的比例精修为0.335 (3):0.665 (3)。
