Crystal Structure of 1-(2-Pyridylmethyl)-2,4,6-Triphenyl-Pyridinium Perchlorate

The crystals of 1-(2-pyridymethyl)-2,4,6-triphenylpyridinium perchlorate are monoclinic, space group P 2₁/b. The unit cell parameters are a = 18.941(5), b = 19.502(6), c = 15.135(5),y = 115.99°(2), Z = 8, d₀ = 1.31(3), d_x = 1.319 g/cm³. The structure has been determined by direct methods and refined by block diagonal least squares to R₀ = 0.08 for 2520 reflections. The phenyl rings in both molecules (I) and (II) are planar. These rings are twisted with respect to the central pyridyl rings.