Crystal Structure of Two V -shaped Ligands with N -Heterocycles

Two V -shaped ligands with N -heterocycles, bis(4-(1 H -imidazol-1-yl) phenyl)methanone ( 1 ), and bis(4-(1 H -benzo[d]imidazol-1-yl)phenyl)methanone ( 2 ) have been synthesized and characterized by elemental analyses, IR and 1 H NMR spectroscopy. Crystal structures of 1 and 2 have been determined by X-ray diffraction. The crystal of 1 is monoclinic, sp. gr. P 2 1 / c , Z = 4. The crystal of 2 is orthorhombic, sp. gr. Fdd 2, Z = 8. X-ray diffraction analyses show that the V -shaped angles of 1 and 2 are 122.72(15)° and 120.7(4)°, respectively. Intermolecular C–H···O, C–H···N, C–H···π, and π···π interactions link the components into three-dimensional networks in the crystal structures.