STRUCTURE AND SPECTROSCOPIC BEHAVIOR OF ADDUCT OF 2,6-DICHLORO-4-NITROPHENOL WITH 2,4,6-TRIMETHYLPYRIDLINE

2,4,6-trimethylpyridinium 2,6-dichloro-4-nitrophenolate crystallizes i n monoclinic system, space group P2(1)/c, a = 7.534(2), b = 26.673(5), c 8.452(2) Angstrom, beta = 116.16(3)degrees, Z = 4. The planar molec ules are arranged in the lattice as antiparallel oriented pairs with t he symmetry centre. The O- ... H-N+ hydrogen bonds are relatively long , 2.686(4) Angstrom. The C-O bond length, 1.250(4) Angstrom, indicates an extended charge separation. The IR and UV-VIS spectra in KBr pelle ts confirm the ion pairs to be present in the solid state.