Date Published: March 01, 2012
Publisher: International Union of Crystallography
Author(s): Ang Chee Wei, Mohamed Ashraf Ali, Tan Soo Choon, Ibrahim Abdul Razak, Suhana Arshad.
In the title compound, C30H25NO5S, all the five-membered rings are in envelope conformations with the spiro and methylene C atoms as the flap atoms. Intramolecular C—H⋯O interactions stabilize the molecular structure and form S(6) and S(7) ring motifs. The mean plane through the hexahydropyrrolo[1,2-c]thiazole ring [r.m.s deviation of 0.0393 (1) Å] makes dihedral angles of 60.92 (5), 88.33 (4) and 84.12 (4)° with the terminal benzene ring and the mean planes of the mono and di-oxo substituted indan rings, respectively. Molecules are linked by intermolecular C—H⋯O interactions into a three-dimensional network. In addition, C—H⋯π and π–π interactions [centroid-to-centroid distance = 3.4084 (8) Å] further stabilize the crystal structure.
For related structures, see: Wei, Ali, Choon et al. (2011 ▶); Wei, Ali, Ismail et al. (2011 ▶); Wei, Ali, Yoon et al. (2011 ▶). For ring conformations, see: Cremer & Pople (1975 ▶). For hydrogen-bond motifs, see: Bernstein et al. (1995 ▶). For the stability of the temperature controller used for data collection, see: Cosier & Glazer (1986 ▶).