CRYSTAL-STRUCTURE OF 1-(4-PYRIDYLMETHYL)-2,4,6-TRIPHENYL PYRIDINIUM PERCHLORATE

1-(4-pyridylmethyl)-2,4,6-triphenyl pyridinium perchlorate crystallizes in space group P1BAR with 3 molecules per asymmetric unit. The cell parameters obtained are: a = 12.142(3), b = 16.972(4), c = 20.229(7) angstrom, alpha = 83.66(4), beta = 74.83(3), and gamma = 69.47(2)-degrees. The crystal structure was determined using the direct methods technique. Anisotropic refinement was undertaken using block diagonal least squares. In the final cycle of the refinement the reliability factor was found to be R0 = 0.084 for 3982 reflections with I greater-than-or-equal-to 3sigma (I). All rings are planar within experimental errors. Rings B, C, D, and E are twisted with respect to the central plane.