Kuai Hai-Wei, Cheng Xiao-Chun
Faculty of Life Science and Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2011 Dec 1;67(Pt 12):o3208. doi: 10.1107/S1600536811045983. Epub 2011 Nov 5.
Recently, we reported the first monoclinic [Kuai & Cheng (2011). Acta Cryst., E67, o2787] and the ortho-rhom-bic polymorph [Kuai & Cheng (2011). Acta Cryst., E67, o3014] of the title compound, C(15)H(12)N(2)O(2). Another monoclinic polymorph was obtained accidentally by the hydro-thermal reaction of the title compound with manganese chloride in the presence of potassium hydroxide at 413 K. The asymmetric unit consists of four independent mol-ecules. In the crystal, O-H⋯N hydrogen bonds link the independent mol-ecules into four separate chains parallel to the b axis.
最近，我们报道了标题化合物C₁₅H₁₂N₂O₂的首个单斜晶型[Kuai & Cheng (2011). Acta Cryst., E67, o2787]和正交晶型多晶型物[Kuai & Cheng (2011). Acta Cryst., E67, o3014]。通过标题化合物与氯化锰在氢氧化钾存在下于413 K进行水热反应，意外地得到了另一种单斜晶型多晶型物。不对称单元由四个独立分子组成。在晶体中，O—H⋯N氢键将独立分子连接成平行于b轴的四条单独链。
