Xiahou Guo-Lun, Ding Ye-Chun, Fan Xiao-Na
Key Lab of Natural Medicine Research and Development in Jiangxi, Gannan Medical University, Ganzhou, Jiangxi 341000, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2010 Jun 5;66(Pt 7):o1522. doi: 10.1107/S1600536810020039.
In the title compound, C(20)H(18)N(4)O(4), conformation along the bond sequence linking the benzene and quinoline rings, which have a mean inter-planar dihedral angle of 2.7 (5)°, is trans-(+)gauche-trans-trans-(-)gauche-trans-trans. In the crystal structure, a pair of inter-molecular N-H⋯O hydrogen bonds links the mol-ecules into centrosymmetric cyclic R(2) (2)(8) dimers, which are aggregated via π-π inter-actions into parallel sheets [quinoline-benzene ring centroid separation = 3.6173 (16)-3.6511 (16) Å]. The sheets are further connected through weak C-H⋯O inter-actions, giving a supra-molecular two-dimensional network.
在标题化合物C(20)H(18)N(4)O(4)中,连接苯环和喹啉环的键序列的构象为反式-(+)-gauche-反式-反式-(-)-gauche-反式-反式,苯环和喹啉环的平均平面间二面角为2.7 (5)°。在晶体结构中,一对分子间N-H⋯O氢键将分子连接成中心对称的环状R(2) (2)(8)二聚体,这些二聚体通过π-π相互作用聚集形成平行片层[喹啉-苯环质心间距 = 3.6173 (16)-3.6511 (16) Å]。这些片层通过弱C-H⋯O相互作用进一步连接,形成超分子二维网络。