Fun Hoong-Kun, Arshad Suhana, Garudachari B, Isloor Arun M, Satyanarayan M N
Acta Crystallogr Sect E Struct Rep Online. 2011 Jul 1;67(Pt 7):o1582-3. doi: 10.1107/S1600536811020654. Epub 2011 Jun 4.
The asymmetric unit of the title compound, C(15)H(10)Br(2)O(3), consists of three crystallographically independent mol-ecules (A, B and C). The phenyl rings in mol-ecules A, B and C make dihedral angles of 6.1 (3), 3.2 (2) and 54.6 (2)° to each other, respectively. In the crystal, mol-ecules are linked into two-dimensional layers parallel to the ab plane by inter-molecular C-H⋯O hydrogen bonds. The crystal structure is further stabilized by C-H⋯π inter-actions. The studied crystal is an inversion twin, the refined ratio of the twin components being 0.128 (8):0.872 (8).
标题化合物C(15)H(10)Br(2)O(3)的不对称单元由三个晶体学独立的分子(A、B和C)组成。分子A、B和C中的苯环彼此之间的二面角分别为6.1 (3)、3.2 (2)和54.6 (2)°。在晶体中,分子通过分子间C-H⋯O氢键连接成平行于ab平面的二维层。晶体结构通过C-H⋯π相互作用进一步稳定。所研究的晶体是一个倒反孪晶,孪晶组分的精修比例为0.128 (8):0.872 (8)。