Date Published: March 01, 2012
Publisher: International Union of Crystallography
Author(s): Abdulrahman I. Almansour, Raju Suresh Kumar, Natarajan Arumugam, P. Devi Shree, J. Suresh.
In the title compound, C26H12FNO6, the central pyran ring and both benzopyran systems are nonplanar, having total puckering amplitudes of 0.139 (2), 0.050 (1) and 0.112 (2) Å, respectively. The central pyran ring adopts a boat conformation. The crystal structure is stabilized by C—H⋯O, N—H⋯O, N—H⋯F and C—H⋯π interactions.
For the background to benzopyran derivatives, see: Martin & Critchlow (1999 ▶); Teague & Davis (1999 ▶); Joshi & Jain (1985 ▶); Ninamiya (1980 ▶); Kobayashi & Matsuda (1970 ▶). For hydrogen-bonding motifs, see: Bernstein et al. (1995 ▶).