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Acta Cryst. (2013). E69, o1208-o1209  [ doi:10.1107/S1600536813017704 ]

5''-(4-Nitrobenzylidene)-7'-(4-nitrophenyl)-1''-methyl-1',3',5',6',7',7a'-hexahydrodispiro[acenaphthylene-1,5'-pyrrolo[1,2-c][1,3]thiazole-6',3''-piperidine]-2,4''(1H)-dione including an unknown solvate

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

Abstract: The title compound, C35H28N4O6S, crystallizes with two molecules in the asymmetric unit. In both molecules, the piperidine ring adopts a shallow-chair conformation, the thiazole ring adopts a twisted conformation about the Cm-N bond (m = methine) and the pyrrole ring adopts an envelope conformation with the C atom shared with the thiazole ring as the flap. In the crystal, inversion dimers linked by pairs of C-H...O interactions generate R22(34) loops for one of the asymmetric molecules. Further C-H...O links also involving the other molecule lead to a three-dimesional network. The contribution of the highly disordered solvent to the scattering was removed with SQUEEZE option of PLATON [Spek (2009). Acta Cryst. D65, 148-155]. The solvent contribution is not included in the reported molecular weight and density.


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