Tiouabi Mustapha, Tabacchi Raphaël, Stoeckli-Evans Helen
Institute of Chemistry, University of Neuchâtel, Av. de Bellevax 51, CH-2000 Neuchâtel, Switzerland.
Institute of Physics, University of Neuchâtel, rue Emile-Argand 11, CH-2000 Neuchâtel, Switzerland.
Acta Crystallogr E Crystallogr Commun. 2020 Jun 19;76(Pt 7):1101-1106. doi: 10.1107/S2056989020007987. eCollection 2020 Jul 1.
In the title compound, CHO, (), the meth-oxy-carbonyl [-C(=O)OCH] and the acetic acid [-CHC(=O)OH] groups are inclined to the benzene ring by 79.24 (11) and 76.71 (13)°, respectively, and are normal to each other with a dihedral angle of 90.00 (13)°. In the crystal, mol-ecules are linked by a pair of O-H⋯O hydrogen bonds forming the familiar acetic acid inversion dimer. The dimers are linked by two C-H⋯O hydrogen bonds and an offset π-π inter-action [inter-centroid distance = 3.6405 (14) Å], forming layers lying parallel to the (10) plane. The layers are linked by a third C-H⋯O hydrogen bond and a C-H⋯π inter-action to form a supra-molecular framework.
在标题化合物CHO（）中，甲氧基羰基[-C(=O)OCH]和乙酸[-CHC(=O)OH]基团分别与苯环呈79.24 (11)°和76.71 (13)°的倾斜角，且彼此垂直，二面角为90.00 (13)°。在晶体中，分子通过一对O-H⋯O氢键相连，形成常见的乙酸反演二聚体。二聚体通过两个C-H⋯O氢键和一个偏移π-π相互作用[质心间距 = 3.6405 (14) Å]相连，形成平行于(10)平面的层。这些层通过第三个C-H⋯O氢键和一个C-H⋯π相互作用相连，形成一个超分子框架。
