π-stacking and C - X⋯D (X = H, NO<inf>2</inf>; D = O, π) inter-actions in the crystal network of both C - H⋯N and π-stacked dimers of 1,2-bis-(4-bromo-phenyl)-1H-benzimidazole and 2-(4-bromo-phenyl)-1-(4- nitro-phenyl)-1H-benzimidazole

Jazmin E. González-Padilla, Martha C. Rosales-Hernández, Itzia I. Padilla-Martínez, Efren V. García-Báez, Susana Rojas-Lima, Veronica Salazar-Pereda

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Abstract

Mol-ecules of 1,2-bis-(4-bromo-phenyl)-1H-benzimidazole, C19H12Br2N2, (I), and 2-(4-bromo-phenyl)-1-(4-nitro-phenyl)-1H-benzimidazole, C19H12BrN3O2, (II), are arranged in dimeric units through C - H⋯N and parallel-displaced π-stacking inter-actions favoured by the appropriate disposition of N- and C-bonded phenyl rings with respect to the mean benzimidazole plane. The mol-ecular packing of the dimers of (I) and (II) arises by the concurrence of a diverse set of weak inter-molecular C - X⋯D (X = H, NO2; D = O, π) inter-actions. © 2014 International Union of Crystallography.
Original languageAmerican English
Pages (from-to)55-59
Number of pages49
JournalActa Crystallographica Section C: Structural Chemistry
DOIs
StatePublished - 1 Jan 2014

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