La mécanique de la liaison hydrogène: résultats de spectroscopie infrarouge

We review the mechanics of H-bonds as revealed by ir spectroscopy and show how the various (strong) anharmonic couplings of the νs vibrations [Formula: see text]of H-bonds may be treated so as to eliminate the irrelevant features of the spectra and keep only those features which may give information on the still unknown dynamical quantities of the H-bonds, such as the transfer of protons through H-bonds or the mechanism of rupture of H-bonds. We also describe the possibilities offered by vibrational spectroscopy for studying these dynamical quantities, which may be important in biology.