Experimental

disorder in main residue; R factor = 0.052; wR factor = 0.138; data-to-parameter ratio = 14.6. The title compound, C13H9BrF3N5O, crystallizes with two independent molecules in the asymmetric unit. The pyrimidine rings of the molecules are planar [maximum deviations 0.053 (3) and 0.012 (3) Å], while the triazine rings adopt flattened half-boat conformations with the p-bromophenyl rings in the flagpole positions. The crystal packing is stabilized by a three-dimensional network of intermolecular N—H N, N—H O and N—H F hydrogen bonds. Related literature For the crystal structure of 7,7-dimethyl-2-phenyl-6,7-dihydro