Synthesis, crystal structure and Hirshfeld surface analysis of (3Z)-4-[(4-amino-1,2,5-oxadiazol-3-yl)-amino]-3-bromo-1,1,1-trifluorobut-3-en-2-one

In the title compound, C6H4BrF3N4O2, the oxadiazole ring is essentially planar with a maximum deviation of 0.003 (2) angstrom. In the crystal, molecular pairs are connected by N-H center dot center dot center dot N hydrogen bonds, forming dimers with an R-2(2)(8) motif. The dimers are linked into layers parallel to the (104) plane by N-H center dot center dot center dot O hydrogen bonds. In addition, C-O center dot center dot center dot pi and C-Br center dot center dot center dot pi interactions connect the molecules, forming a three-dimensional network. The F atoms of the trifluoromethyl group are disordered over two sites in a 0.515 (6): 0.485 (6) ratio. The intermolecular interactions in the crystal structure were investigated and quantified using Hirshfeld surface analysis.