Hosseinzadeh Masoumeh, Mukhtar Mat Ropi, Khalilzadeh Mohammad Ali, Khaledi Hamid
Acta Crystallogr Sect E Struct Rep Online. 2012 Feb 1;68(Pt 2):o453. doi: 10.1107/S1600536812001043. Epub 2012 Jan 18.
The title compound, C(16)H(14)O(5), is a triclinic polymorph of a previously reported monoclinic structure [Hosseinzadeh et al. (2011 ▶). Acta Cryst. E67, o1544]. The mol-ecule is roughly planar, the r.m.s. deviation from the least-squares plane of all non-H atoms being 0.092 Å. In the crystal, adjacent mol-ecules are linked through C-H⋯O hydrogen bonds into an infinite two-dimensional network parallel to (011). The layers are further connected via C-H⋯π inter-actions, forming a three-dimensional structure. Intra-molecular O-H⋯O and C-H⋯O hydrogen bonds are also observed.
标题化合物C(16)H(14)O(5)是先前报道的单斜晶系结构[Hosseinzadeh等人（2011年▶）。《晶体学报》E67卷，o1544]的三斜晶系多晶型物。分子大致呈平面状，所有非H原子与最小二乘平面的均方根偏差为0.092 Å。在晶体中，相邻分子通过C—H⋯O氢键连接成平行于(011)的无限二维网络。这些层通过C—H⋯π相互作用进一步连接，形成三维结构。还观察到分子内的O—H⋯O和C—H⋯O氢键。
