| pubmed-article:21581969 | pubmed:abstractText | The mol-ecule of the title compound, C(17)H(10)N(4)O, has crystallographically imposed C(2) symmetry. The urea group and the benzene ring are nearly coplanar, the dihedral angle between them being 4.15?(7)°. The crystal packing is stabilized by aromatic ?-? stacking inter-actions, with a centroid-to-centroid separation of 3.833?(4)?Å. | lld:pubmed |
