Akkurt Mehmet, Jarrahpour Ali Asghar, Aye Malihe, Gençaslan Mustafa, Büyükgüngör Orhan
Acta Crystallogr Sect E Struct Rep Online. 2008 Oct 22;64(Pt 11):o2175-6. doi: 10.1107/S1600536808034193.
The title compound, C(15)H(14)N(2)O(4), has two crystallographically independent mol-ecules in the asymmetric unit. In both mol-ecules, the nitro and the two meth-oxy substituents are coplanar with the benzene rings to which they are attached. The benzene rings are nearly coplanar, with dihedral angles between the two benzene rings of 10.39 (8) and 5.95 (8)° in the two mol-ecules. The two independent mol-ecules in the asymmetric unit are rotated with respect to each other such that the dihedral angles between equivalent benzene rings are 49.11 (8) and 63.93 (8)°. In the crystal structure, inter-molecular C-H⋯O hydrogen-bond contacts and a weak C-H⋯π inter-action are observed.
标题化合物C(15)H(14)N(2)O(4)在不对称单元中有两个晶体学独立分子。在这两个分子中,硝基和两个甲氧基取代基与它们所连接的苯环共平面。两个苯环近乎共平面,在两个分子中两个苯环之间的二面角分别为10.39 (8)°和5.95 (8)°。不对称单元中的两个独立分子相互旋转,使得等效苯环之间的二面角分别为49.11 (8)°和63.93 (8)°。在晶体结构中,观察到分子间的C-H⋯O氢键接触和弱的C-H⋯π相互作用。