The title salt, C9H11N2 (+)·NO3 (-), features a planar cation (r.m.s. for 11 non-H atoms = 0.016 Å). In the crystal, N-H⋯O hydrogen bonds link nitrate and benzimidazole ions into a three-dimensional network.

an efficient method has been developed for the catalysis of condensation of 1,2-phenylenediamines and 2-aminothiophenoles with different aldehydes into their corresponding 2-aryl-1h-benzimidazoles and 2-aryl-1h-benzothiazoles under mild condition. in this method, trans-3,5-dihydroperoxy-3,5-dimethyl-1,2-dioxolane (dhpdmdo)/hoac/ki system was used as a novel and effective oxidant in water at roo...

In the title compound, C(21)H(18)N(8), the two (benzotriazol-1-yl)methyl groups are located in an anti position with respect to the benzimidazoline moiety. The dihedral angles between the benzotriazole ring systems and the central benzimidazoline moiety are 57.03 (4) and 81.01 (3)°. The crystal packing is stabilized by two C-H⋯π inter-actions.

In the title hydrate, C17H13N3O·H2O, the dihedral angle between the quinoline and benzimidazole ring systems is 6.22 (7)°. The water mol-ecule is linked to the main mol-ecule by N-H⋯O and O-H⋯N hydrogen bonds. Further O-H⋯N hydrogen bonds link the organic molecules into C(6) chains running parallel to the b axis.

Three benzimidazole-based organic dyes, possessing the same triphenylamine donors and cyanoacrylic acid acceptors with the bithiophene π-bridges combined in different nuclear positions of benzimidazole, were investigated in the utility of dye-sensitizer solar cells. The structure, molecular orbital and energy, absorption spectra and some important parameters (such as light harvesting efficiency...

A novel base-catalyzed Povarov reaction of arylamines, aldehydes, and electron-deficient dienophiles has been developed. An unprecedented in situ [1,3] sigmatropic rearrangement leading to 4,10-dihydropyrimido[1,2-a]benzimidazoles has also been discovered. An insight of the plausible mechanism is discussed and supported by X-ray crystal study. This cascade reaction is achieved in a one-pot mult...

A mixture of tetra-n-butylphosphonium benzimidazolate and benzimidazole is readily prepared as a proton conductive liquid having thermal stability up to 300 °C.

In the title compound, C23H14N2, (I), the dihedral angle between the mean planes of the pyrene and benzimidazole ring systems is 42.08 (5)°, with a bridging C-C bond length of 1.463 (3) Å. In the crystal, mol-ecules are linked by N-H⋯N hydrogen bonds, forming columns propagating along the b-axis direction. The columns are linked via C-H⋯π inter-actions, forming slabs parallel to the ab plane. T...

The title compound, C(8)H(7)N(3)O(2), a potential anti-tumour drug and an anti-oxidant agent, was studied in order to give more insight into structure-function relationships. The 1-methyl-benzimidazole unit of the mol-ecule was found to be exactly planar and the nitro group is inclined at an angle of 10.4 (2)° to the plane of the heterocycle. The bond lengths in the present derivative were anal...

In the title compound, C(15)H(11)N(3)S, the dihedral angle between the benzimidazole ring system and the benzene ring is 51.8 (2)°. The crystal structure exhibits inter-molecular N-H⋯N hydrogen bonds which lead to the formation of C(4) chains along the [001] direction.