Features of strong O–H⋯O and N–H⋯O hydrogen bond manifestation in vibrational spectra

Yu A. Galkina, N. A. Kryuchkova, M. A. Vershinin, B. A. Kolesov

Результат исследования: Научные публикации в периодических изданияхстатья

7 Цитирования (Scopus)

Аннотация

The work deals with the establishment of the dependence of the vibrational frequencies of strong O–H⋯O and N–H⋯O hydrogen bonds for the diagnosing the bonds themselves. To this end, the Raman spectra of a large number of different normal and deutero-substituted crystals characterized by the presence of strong O–H⋯O and N–H⋯O bonds are measured and the quantum chemical calculation is performed for one of these compounds. The dependence of the O–H stretching frequency on the O⋯O distance is constructed differing from that previously known for short O⋯O contacts. The mechanisms of significant broadening of the O–H vibration band in strong O–H⋯O hydrogen bonds are considered. Different dependences of the N–H vibrational frequencies in N–H⋯O bonds are reported and the causes of this diversity are discussed.

Язык оригиналаанглийский
Страницы (с-по)911-918
Число страниц8
ЖурналJournal of Structural Chemistry
Том58
Номер выпуска5
DOI
СостояниеОпубликовано - 1 сен 2017

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