Kannan Piskala Subburaman, Lanka Srinu, Thennarasu Sathiah, Govindan Elumalai, Subbiahpandi Arunachalathevar
Department of Physics, S.M.K. Fomra Institute of Technology, Thaiyur, Chennai 603 103, India.
Acta Crystallogr Sect E Struct Rep Online. 2013 May 4;69(Pt 6):o822. doi: 10.1107/S1600536813011525. Print 2013 Jun 1.
In the title compound, C36H30N4O3, the quinoxaline-indene system is roughly planar, with a maximum deviation from the mean plane of 0.218 Å for the C atom shared with the central pyrrolidine ring. This latter ring forms dihedral angles of 84.54 (7) and 83.91 (8)° with the quinoxaline-indene system and the indole ring, respectively. The central pyrrolidine ring has an envelope conformation with the N atom as the flap, while the pyrrolidine and five-membered rings of the indole group adopt twisted conformation and envelope (with the C atom bearing the quinoxaline-indene system as the flap) conformations, respectively. In the crystal, mol-ecules are linked via weak C-H⋯N hydrogen bonds, forming a chain running along [100].
在标题化合物C₃₆H₃₀N₄O₃中，喹喔啉 - 茚体系大致呈平面状，与中心吡咯烷环共享的C原子偏离平均平面的最大距离为0.218 Å。后一个环与喹喔啉 - 茚体系和吲哚环分别形成84.54（7）°和83.91（8）°的二面角。中心吡咯烷环呈信封式构象，以N原子为翻盖，而吲哚基团的吡咯烷环和五元环分别采用扭曲构象和信封式构象（以连接喹喔啉 - 茚体系的C原子为翻盖）。在晶体中，分子通过弱C - H⋯N氢键相连，形成沿[100]方向延伸的链。
