Asad Mohammad, Oo Chuan-Wei, Osman Hasnah, Yeap Chin Sing, Fun Hoong-Kun
Acta Crystallogr Sect E Struct Rep Online. 2010 Oct 20;66(Pt 11):o2859-60. doi: 10.1107/S1600536810041231.
In the title compound, C(32)H(24)O(8), the mol-ecular structure is disordered over two positions with refined site occupancies of 0.8746 (10) and 0.1254 (10). The mean plane of the three chromeno rings make dihedral angles with each other of 65.12 (4), 62.91 (4) and 59.70 (4)° in the major occupancy component and 59.1 (3), 66.1 (3) and 58.8 (3)° in the minor component. Intra-molecular O-H⋯O hydrogen bonds stabil-ize the mol-ecular structure and the crystal structure is stabilized by weak C-H⋯π and π-π inter-actions [centroid-centroid distances 3.496 (6)-3.672 (7) Å].
在标题化合物C(32)H(24)O(8)中,分子结构在两个位置上无序,精修后的位点占有率分别为0.8746 (10)和0.1254 (10)。在主要占有率组分中,三个色烯环的平均平面相互之间的二面角分别为65.12 (4)、62.91 (4)和59.70 (4)°,在次要组分中分别为59.1 (3)、66.1 (3)和58.8 (3)°。分子内的O-H⋯O氢键稳定了分子结构,晶体结构通过弱的C-H⋯π和π-π相互作用[质心-质心距离3.496 (6)-3.672 (7) Å]得以稳定。