Infrared spectra of free and bound with different proton acceptors in 1:1 and 1:2 complexes H-bonded molecules of 3, 5-dichloroaniline, 3, 5-dibromoaniline, 2, 3, 5, 6-tetrafluoroaniline, 4-methoxytetrafluoroaniline, pen-tafluoroaniline, 4-nitro-anihne, 2, 6-dichloro-4-nitroaniline, 4-nitrotetraflu-oroaniline and 4-aminotetrafluoropyridine were studied in the region of stretching and deformational vibrations of amino group. Spectral characteristics of absorption bands of free and bound H-bonded molecules of substituted anilines in solutions were determined.