Di­chloro­bis­[1-(2-ethoxy­ethyl)-1H-benz­imidazole-κN³]­nickel(II)

The title compound, [NiCl₂(C₁₁H₁₄N₂O)₂], was synthesized from 1-(2-ethoxy­ethyl)­benz­imidazole and nickel dichloride in ethanol and is isostructural with its cobalt analogue. It shows a distorted tetrahedral geometry about Ni^II, involving two Cl atoms and two benz­imidazole N atoms. The crystal structure is stabilized by C—H...Cl and C—H...O interactions.

6-Nitro-1-(2-phenyl­eth­yl)-1H-benzimidazole

The title compound, C₁₅H₁₃N₃O₂, was synthesized from 5-nitro­benzimidazole, 2-bromo­ethyl­benzene and KOH in ethanol. The phen­yl and benzimidazole ring systems are each planar and make a dihedral angle of 43.9 (1)°. The crystal structure is stabilized by weak inter­molecular C—H...N hydrogen-bond inter­actions.

1-Benz­yl-3-(2-pheneth­yl)benzimidazolium bromide monohydrate

The title compound, C₂₂H₂₀N₂⁺·Br⁻·H₂O, was synthesized from 1-benzyl­benzimidazole and 2-bromo­ethyl­benzene in dimethyl­formamide. The dihedral angle between the two phen­yl rings is 70.6 (1)°. These phen­yl rings make dihedral angles of 52.99 (9) and 83.03 (8)° with the benzimidazole ring system. The crystal structure is stabilized by inter­molecular C—H...Br and O—H...Br hydrogen-bond inter­actions.

1-Methoxy­ethyl-5-nitro­benzimidazole

The title compound, C₁₀H₁₁N₃O₃, was synthesized by the reaction of 5-nitro­benzimidazole, 2-chloro­ethyl methyl ether and KOH in ethanol. The bond lengths and angles are unexceptional.