Research Article: 2,4-Dibromo-6-[(E)-({3-[(E)-(3,5-dibromo-2-oxidobenzyl­idene)aza­nium­yl]-2,2-dimethyl­prop­yl}iminium­yl)meth­yl]phenolate

Date Published: February 01, 2012

Publisher: International Union of Crystallography

Author(s): Hadi Kargar, Reza Kia, Mahbubeh Haghshenas, Muhammad Nawaz Tahir.


In the title mol­ecule, C19H18Br4N2O2, the dihedral angle between the benzene rings is 73.9 (2)°. Two intra­molecular N—H⋯O hydrogen bonds make S(6) ring motifs. In the crystal, mol­ecules are linked via C—H⋯O inter­actions, forming chains propagating along the a-axis directon. A short C⋯Br [3.401 (5) Å] contact is present in the crystal structure, which is further stabilized by a π–π inter­action [centroid–centroid distance = 3.739 (3) Å].

Partial Text

For standard bond lengths, see: Allen et al. (1987 ▶). For hydrogen bond motifs, see: Bernstein et al. (1995 ▶). For related structures, see: Kargar et al. (2011 ▶); Kia et al. (2010 ▶).