Abstract
The asymmetric unit of the title compound, C26H32N4O4, consists of two independent molecules. In both molecules, the ethoxy groups are each disordered over two sets of sites with occupancies of 0.695 (4):0.305 (4) and 0.877 (2):0.123 (2). The dihedral angles between the benzimidazole ring system and the adjacent benzene ring in the two molecules are 41.41 (5) and 31.46 (5)°. In the crystal, molecules are linked by C—H⋯O and C—H⋯N interactions.
Highlights
The asymmetric unit of the title compound, C26H32N4O4, consists of two independent molecules
The ethoxy groups are each disordered over two sets of sites with occupancies of 0.695 (4):0.305 (4) and 0.877 (2):0.123 (2)
Molecules are linked by C— HÁ Á ÁO and C—HÁ Á ÁN interactions
Summary
Key indicators: single-crystal X-ray study; T = 100 K; mean (C–C) = 0.002 A; disorder in main residue; R factor = 0.054; wR factor = 0.154; data-to-parameter ratio = 30.8. The asymmetric unit of the title compound, C26H32N4O4, consists of two independent molecules. In both molecules, the ethoxy groups are each disordered over two sets of sites with occupancies of 0.695 (4):0.305 (4) and 0.877 (2):0.123 (2). The dihedral angles between the benzimidazole ring system and the adjacent benzene ring in the two molecules are 41.41 (5) and 31.46 (5). Molecules are linked by C— HÁ Á ÁO and C—HÁ Á ÁN interactions. Related literature For biological activity of benzimidazole derivatives, see: Vijaya et al (2009); Haugwitz (1982); Hisano (1982).
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