Acta Cryst. (2009). E65, o59-o60  [ doi:10.1107/S1600536808040567 ]

3,3'-Bis(4-chlorophenyl)-2,2'-(m-phenylenedioxy)diquinazolin-4(3H)-one

H.-Z. Yang, H.-T. Gao and X.-H. Yang

Abstract: In the title compound, C₃₄H₂₀Cl₂N₄O₄, the two quinazoline heterocyclic systems and the adjacent chlorobenzene rings are not coplanar, but oriented at dihedral angles of 66.66 (13) and 52.48 (12)°, respectively. The quinazoline ring systems are nearly planar, with dihedral angles between the planes of the two rings of 5.43 (16) and 3.40 (14)°, and are oriented at dihedral angles of 79.73 (13) and 83.52 (13)° with respect to the adjacent benzene ring between them. Intermolecular C-HO hydrogen bonds contribute to the stability of the structure. In addition, weak - stacking interactions [centroid-to-centroid distances = 3.872 (1) and 3.876 (1) Å] are observed in the crystal structure.

Online 10 December 2008

Copyright © International Union of Crystallography
IUCr Webmaster