title: π-stacking and C-X...D (X = H, NO2; D = O, π) interactions in the crystal network of both C-H...N and π-stacked dimers of 1,2-bis(4-bromophenyl)-1H-benzimidazole and 2-(4-bromophenyl)-1-(4-nitrophenyl)-1H-benzimidazole.
abstract: Molecules of 1,2-bis(4-bromophenyl)-1H-benzimidazole, C19H12Br2N2, (I), and 2-(4-bromophenyl)-1-(4-nitrophenyl)-1H-benzimidazole, C19H12BrN3O2, (II), are arranged in dimeric units through C-H...N and parallel-displaced π-stacking interactions favoured by the appropriate disposition of N- and C-bonded phenyl rings with respect to the mean benzimidazole plane. The molecular packing of the dimers of (I) and (II) arises by the concurrence of a diverse set of weak intermolecular C-X...D (X = H, NO2; D = O, π) interactions.
authors.affiliation: Laboratorio de Biofisica y Biocatálisis, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Casco de Santo Tomás, México DF 11340, Mexico.
authors.forename: Jazmin E
authors.initials: JE
authors.lastname: González-Padilla
authors.affiliation: Laboratorio de Biofisica y Biocatálisis, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Casco de Santo Tomás, México DF 11340, Mexico.
authors.forename: Martha C
authors.initials: MC
authors.lastname: Rosales-Hernández
authors.affiliation: Laboratorio de Investigación en Química, Departamento de Ciencias Básicas, Unidad Profesional Interdisciplinaria de Biotecnología, Instituto Politécnico Nacional, Avenida Acueducto s/n, Barrio La Laguna Ticomán, México DF 07340, Mexico.
authors.forename: Itzia I
authors.initials: II
authors.lastname: Padilla-Martínez
authors.affiliation: Laboratorio de Investigación en Química, Departamento de Ciencias Básicas, Unidad Profesional Interdisciplinaria de Biotecnología, Instituto Politécnico Nacional, Avenida Acueducto s/n, Barrio La Laguna Ticomán, México DF 07340, Mexico.
authors.forename: Efren V
authors.initials: EV
authors.lastname: García-Báez
authors.affiliation: Centro de Investigaciones Químicas, Universidad Autonoma del Estado de Hidalgo, km. 4.5 Carretera Pachuca-Tulancingo, Mineral de la Reforma, Hidalgo CP 42184, Mexico.
authors.forename: Susana
authors.initials: S
authors.lastname: Rojas-Lima
authors.affiliation: Centro de Investigaciones Químicas, Universidad Autonoma del Estado de Hidalgo, km. 4.5 Carretera Pachuca-Tulancingo, Mineral de la Reforma, Hidalgo CP 42184, Mexico.
authors.forename: Veronica
authors.initials: V
authors.lastname: Salazar-Pereda
mesh_terms: D001562:Benzimidazoles / Q000737:chemistry*; D006860:Hydrogen Bonding; D008958:Models, Molecular; D009574:Nitro Compounds / Q000737:chemistry*
chemical_list: C000588707:2-(4-bromophenyl)-1-(4-nitrophenyl)-1H-benzimidazole; D001562:Benzimidazoles; D009574:Nitro Compounds; C031000:benzimidazole
keywords: crystal structure; hydrogen bonding; phenylbenzimidazole; supramolecular structures; π-stacking