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Acta Cryst. (2013). E69, o1291-o1292  [ doi:10.1107/S1600536813019594 ]

5''-(2-Fluorobenzylidene)-1'-(2-fluorophenyl)-1''-methyl-1',2',3',5',6',7',8',8a'-octahydrodispiro[acenaphthylene-1,3'-indolizine-2',3''-piperidine]-2,4''(1H)-dione

R. Vishnupriya, J. Suresh, S. Sivakumar, R. R. Kumar and P. L. N. Lakshman

Abstract: In the title compound, C37H32F2N2O2, the central six-membered piperidine ring adopts a twisted half-chair conformation, with the N and methylene C atoms deviating by -0.2875 (16) and 0.4965 (15) Å, respectively, from the mean plane defined by the other four atoms. The piperidine connected to the octahydroindolizine ring is in a half-chair conformation. The five-membered pyrrole ring adopts a slightly twisted envelope conformation with the piperidine C atom as the flap atom. The F and H atoms of both fluorobenzene rings are disordered, with occupancy factors of 0.941 (3):0.059 (3) and 0.863 (3):0.137 (3). The molecular structure features some intramolecular C-H...O interactions. In the crystal, a supramolecular zigzag chain sustained by C-H...F interactions parallel to the c axis is formed, generating a C(12) graph-set motif.


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