Suresh J, Nagalakshmi R A, Sivakumar S, Kumar R Ranjith, Lakshman P L Nilantha
Department of Physics, The Madura College, Madurai 625 011, India.
Acta Crystallogr Sect E Struct Rep Online. 2013 Jan 1;69(Pt 1):o140-1. doi: 10.1107/S1600536812051094. Epub 2012 Dec 22.
In the title E isomer of the racemic compound, C37H32F2N2O2, the pyridinone ring adopts a twisted half-chair conformation with the N atom deviating by -0.355 (3) Å and with the methyl-ene C atom next to octa-hydro-indolizine moiety deviating by 0.415 (3) Å from the mean plane defined by other four atoms. In the octa-hydro-indolizine system, the pyrrolidine ring exhibits an envelope conformation with the fused methyne C atom deviating by 0.6496 (1) Å from the mean plane defined by four other atoms, and the piperidine ring exhibits a distorted chair conformation as evident from the puckering parameters Q = 0.568 (2) Å, θ = 1.0 (2) and Φ = 256 (11)°. In the crystal, C-H⋯O inter-actions connect the mol-ecules into chains along [101].
在标题化合物（外消旋化合物C37H32F2N2O2的E异构体）中，吡啶酮环呈扭曲的半椅构象，N原子偏离平均平面 -0.355 (3) Å，与八氢吲哚嗪部分相邻的亚甲基C原子偏离由其他四个原子所定义的平均平面0.415 (3) Å。在八氢吲哚嗪体系中，吡咯烷环呈信封式构象，稠合的次甲基C原子偏离由其他四个原子所定义的平均平面0.6496 (1) Å，哌啶环呈扭曲的椅式构象，从褶皱参数Q = 0.568 (2) Å、θ = 1.0 (2) 和 Φ = 256 (11)° 可以明显看出。在晶体中，C—H⋯O相互作用将分子沿[101]连接成链。
