2-[(E)-2-(4-Chloro-phen-yl)ethen-yl]-1-methyl-pyridinium 4-bromo-benzene-sulfonate.

ABSTRACT: In the title compound, C(14)H(13)ClN(+)·C(6)H(4)BrO(3)S(-), the cation exists in an E configuration with respect to the ethenyl bond and is almost planar, the dihedral angle between the pyridinium and the benzene rings being 2.80?(7)°. The dihedral angles between the benzene ring of the anion and the pyridinium and benzene rings of the cation are 80.88?(7) and 79.05?(7)°, respectively. In the crystal, the cations are stacked into columns along the a axis as a result of ?-? inter-actions between the pyridinium and chloro-benzene rings with a Cg?Cg distance of 3.6976?(8)?Å. The anions are linked into chains along the a axis by weak C-H?O inter-actions. These anion chains are linked to adjacent cations by additional weak C-H?O and C-H?Br inter-actions, forming a two-dimensional network parallel to the ab plane. There are also short O?Br [3.2567?(11)?Å] and C?O [2.9917?(18)?Å] contacts. The crystal structure is further stabilized by C-H?? inter-actions involving the aromatic ring of the anion.

SUBMITTER: Chantrapromma S 

PROVIDER: S-EPMC2977483 | biostudies-other | 2009

REPOSITORIES: biostudies-other