Taner Erdoğan

1-[2-(2,6-Dichloro­benz­yloxy)-2-(2-fur­yl)eth­yl]-1H-benzimidazole

In the molecule of the title compound, C20H16Cl2N2O2, the planar benzimidazole ring system is oriented with respect to the furan and dichlorobenzene rings at dihedral angles of 53.39 (6) and 31.04 (5)°, respectively. In the crystal structure, intermolecular C—H⋯Cl hydrogen bonds link the molecules into centrosymmetric R 2 2(8) dimers. These dimers are connected via a C—H⋯π contact between the benzimidazole and the furan rings, and π–π contacts between the benzimidazole and dichlorobenzene ring systems [centroid–centroid distances = 3.505 (1), 3.567 (1), 3.505 (1) and 3.567 (1) Å].

1-[2-(4-Fluoro­benz­yloxy)-2-phenyl­ethyl]-1H-benzimidazole

The asymmetric unit of the title compound, C22H19FN2O, contains two independent molecules. The planar benzimidazole ring systems are oriented with respect to the phenyl/fluorobenzene rings at dihedral angles of 31.10 (4)/45.17 (5) and 45.52 (5)/68.63 (5)°, respectively, for the two molecules. In the crystal structure, intermolecular C—H⋯N and intermolecular C—H⋯N and C—H⋯F hydrogen bonds link the molecules into a three-dimensional network. There are C—H⋯π contacts between the benzimidazole and fluorobenzene rings and a π–π contact between the benzimidazole and phenyl ring systems [centroid–centroid distance = 4.575 (1) Å].

1-[2-(3,4-Dichloro-benz-yloxy)-2-phenyl-ethyl]-1H-benzimidazole.

In the molecule of the title compound, C22H18Cl2N2O, the planar benzimidazole ring system is oriented with respect to the phenyl and dichlorobenzene rings at dihedral angles of 12.73 (3) and 36.57 (4)°, respectively. The dihedral angle between the dichlorobenzene and phenyl rings is 29.95 (6)°. There are C—H⋯π contacts between the benzimidazole and dichlorobenzene rings, between the benzimidazole and phenyl rings, and between a methylene group and the dichlorobenzene ring.

1-{2-Phenyl-2-[4-(trifluoro­meth­yl)­benzyl­oxy]eth­yl}-1H-benzimidazole

The asymmetric unit of the crystal structure of the title compound, C23H19F3N2O, contains two independent molecules. In the two molecules the planar benzimidazole ring systems are oriented with respect to the phenyl/trifluoromethylbenzene rings at dihedral angles of 9.62 (6)/78.63 (7) and 2.53 (8)/83.83 (9)°. In the crystal structure, intermolecular C—H⋯N hydrogen bonds link the molecules into R 2 2(6) dimers. The molecules are elongated along [001] and stacked along the b axis.

2-(1H-Benzimidazol-1-yl)-1-phenyl­ethanone

In the molecule of the title compound, C15H12N2O, the planar benzimidazole system is oriented at a dihedral angle of 80.43 (5)° with respect to the phenyl ring. In the crystal structure, non-classical intermolecular C—H⋯N and C—H⋯O hydrogen bonds link the molecules into layers parallel to the ab plane.

2-(1H-Benzimidazol-1-yl)-1-(2-fur­yl)ethanone O-ethyl­oxime

In the molecule of the title compound, C16H17N3O2, the planar benzimidazole ring system [maximum deviation = 0.015 (2) Å] is oriented at a dihedral angle of 72.17 (4)° with respect to the furan ring. An intramolecular C—H⋯O interaction results in the formation of a six-membered ring having an envelope conformation. In the crystal structure, intermolecular C—H⋯N interactions link the molecules into centrosymmetric R 2 2(18) dimers.