Abstract
The work outlines general ideas on how the frequency and the intensity of proton vibrations of O-H⋅⋅⋅O hydrogen bonding are formed as the bond evolves from weak to maximally strong bonding. The Raman spectra of glycinium phosphite and protonated di-methylformamid possessing strong and maximally strong hydrogen bonds were obtained in the temperature region of 5 K – 300 K. It is shown that strong bonding is formed only as a result of a particular chemical state of the donor and the acceptor and that the registration of proton vibrations requires low temperatures or high pressures. The dependence of the proton vibrational frequency is schematically presented as a function of the rigidity of O-H⋅⋅⋅O bonding.
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