Fun Hoong-Kun, Jansrisewangwong Patcharaporn, Karalai Chatchanok, Chantrapromma Suchada
Acta Crystallogr Sect E Struct Rep Online. 2011 Jun 1;67(Pt 6):o1526-7. doi: 10.1107/S1600536811019040. Epub 2011 May 25.
The asymmetric unit of the title compound, C(20)H(24)N(2)O(6), contains one half-mol-ecule, the complete mol-ecule being generated by a crystallographic inversion centre. The mol-ecule is nearly planar with a dihedral angle between the two benzene rings of 0.03 (4)° and the central C/N/N/C plane making a dihedral angle of 8.59 (7)° with each of its two adjacent benzene rings. The two meth-oxy groups at the ortho and meta positions are slightly twisted [C-O-C-C torsion angles = 7.23 (12) and 5.73 (13)°], whereas the meth-oxy group at the para position is almost coplanar with the attached benzene ring [C-O-C-C torsion angle = -2.02 (13)°]. The crystal structure is stabilized by a weak C-H⋯π inter-action.
标题化合物C(20)H(24)N(2)O(6)的不对称单元包含半个分子，完整分子由一个晶体学反演中心产生。该分子近乎平面，两个苯环之间的二面角为0.03 (4)°，中心C/N/N/C平面与其两个相邻苯环中的每一个的二面角为8.59 (7)°。邻位和间位的两个甲氧基略有扭曲[C-O-C-C扭转角 = 7.23 (12)和5.73 (13)°]，而对位的甲氧基几乎与相连的苯环共平面[C-O-C-C扭转角 = -2.02 (13)°]。晶体结构通过弱C-H⋯π相互作用得以稳定。
