Research Article: 3,3′-[1,2-Phenyl­enebis(methyl­ene)]bis­(1-ethyl­benzimidazolium) dibromide

Date Published: March 01, 2012

Publisher: International Union of Crystallography

Author(s): Rosenani A. Haque, Muhammad Adnan Iqbal, Srinivasa Budagumpi, Madhukar Hemamalini, Hoong-Kun Fun.


In the title mol­ecular salt, C26H28N42+·2Br−, the central benzene ring makes dihedral angles of 76.75 (11) and 82.40 (10)° with the pendant benzimidazole rings. The corresponding angle between the benzimidazole rings is 57.03 (9)°. In the crystal, the cations and anions are linked via C—H⋯Br hydrogen bonds, forming sheets lying parallel to the bc plane. The crystal structure also features weak C—H⋯π inter­actions.

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For background to the biological activities of benzimidazole compounds, see: Mohan et al. (2011 ▶).