Correlation of crystal parameters with vibrational data of tetramethylammonium fluorocompounds

Examination of the solid state infrared spectra of the tetramethylammonium cation in ten salts shows correlation of infrared spectral properties with C-H…X hydrogen bonding and crystal habits in these tetramethylammonium salts. In this research a number of complexes of tetramethylammonium cation have been synthesized and the structures of five of them have been analyzed by X-ray single crystal diffraction. The IR predicted crystal habits are comprised by XRD data. The C-H stretching region characteristic hydrogen bonding shifts in the above salts. A good relation between two data has been found.