Crystal structure of 1-(2-pyridiniometryl)2,4-bis(phenylsulfonyl)benzene bromide

The crystal structure of 1-(2-pyridiniomethyl)-2,4-bis(phenylsulfonyl)benzene bromide, (C24H20NO4S2)(+) Br- (I) has been investigated by X-ray diffraction (XRD) analysis. The triclinic structure of I (space group P1, a= 7.863 angstrom, b = 8.350 angstrom, c= 9.043 angstrom, alpha = 94.00 degrees, beta = 97.81 degrees, gamma = 104.62 degrees Z= 1) was solved by direct methods and refined by full-matrix least-squares analysis in an anisotropic approximation to R = 0.048 for all 4570 reflections collected (CAD-4 automatic diffractometer, lambda CuK alpha). The geometrical parameters of the organic cation were determined with a sufficient degree of accuracy. The crystal structure of I involves a very strong interionic hydrogen bond N+-H...Br-.