In the title compound, C13H11N3, the benzotriazole ring system is essentially planar, with a maximum deviation of 0.0173 (18) Å, and forms a dihedral angle of 75.08 (8)Å with the phenyl ring. In the crystal, pairs of weak C—H⋯N hydrogen bonds form inversion dimers. In addition, there are weak C—H⋯π(arene) interactions and weak π–π stacking interactions, with a centroid–centroid distance of 3.673 (11) Å.
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