CRYSTAL RESEARCH AND TECHNOLOGY, vol.31, no.5, pp.611-615, 1996 (SCI-Expanded)
The crystal and molecular structure of the title compound has been determined by direct methods and refined to a final R of 0.044. The compound crystallizes in space group P2(1)/n with cell dimensions a = 16.681(2), b = 3.838(1): c = 20.550(4) Angstrom, and beta = 104.21(2)degrees. The phenyl and benzene rings of the title molecule are quite planar. The gamma-pyrone ring exhibits maximum deviation 0.032 (4) Angstrom from planarity and makes a dihedral angle of 139.8(2)degrees with the 2-phenyl substituent.