Crystal structure and Hirshfeld surface analyses, inter-action energy calculations and energy frameworks of 2-(anthracen-10-yl)-1H-benzo[d]imidazole.

The benzimidazole and anthracene moieties in the title compound, C21H14N2, are oriented at a dihedral angle of 46.00 (2)°. In the crystal, N-H⋯N hydrogen bonds link the mol-ecules into infinite chains along the b-axis direction. In addition, C-H⋯π inter-actions contribute to the consolidation of the packing. A Hirshfeld surface analysis of the crystal structure indicates that the most important contributions to the crystal packing are from H⋯H (47.2%) and H⋯/C⋯H (39.4%) inter-actions. An energy-framework calculation indicates that the electrostatic and dispersion energies are the most important contributors to the packing.