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

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‐bonde...

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Bibliographic Details
Published in:Acta crystallographica. Section C, Structural chemistry Structural chemistry, 2014-01, Vol.70 (1), p.55-59
Main Authors: González‐Padilla, Jazmin E., Rosales‐Hernández, Martha C., Padilla‐Martínez, Itzia I., García‐Báez, Efren V., Rojas‐Lima, Susana, Salazar‐Pereda, Veronica
Format: Article
Language:English
Subjects:
Benzimidazoles - chemistry
crystal structure
Hydrogen Bonding
Models, Molecular
Nitro Compounds - chemistry
phenylbenzimidazole
supramolecular structures
π‐stacking
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Summary: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.
ISSN:2053-2296
2053-2296
DOI:10.1107/S2053229613033329