Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Shape of the IR band of the hydroxyl group of surface hydrogen-bond complexes : Pyridine on silicon dioxide. / Pavlov, A. Yu; Tsyganenko, A. A.
в: Optics and Spectroscopy (English translation of Optika i Spektroskopiya), Том 82, № 1, 01.12.1997, стр. 21-26.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Shape of the IR band of the hydroxyl group of surface hydrogen-bond complexes
T2 - Pyridine on silicon dioxide
AU - Pavlov, A. Yu
AU - Tsyganenko, A. A.
PY - 1997/12/1
Y1 - 1997/12/1
N2 - The dependence of the position of a maximum and half-width of stretching bands of surface OH and OD groups of Aerosil perturbed by adsorbed pyridine is studied as a function of the amount of adsorbed molecules, sample temperature, and conditions of vacuum thermal processing. The observed shift of the absorption band maximum of perturbed OH groups upon variation of covering is explained by a change in relative intensities of the bands related to two types of adsorption, when a molecule forms a hydrogen bond with one or two OH groups. The 3450 cm-1 band, which corresponds to the second hydrogen bond between the π-electron ring and the hydroxyl group, is observed as a shoulder of the band related to OH groups perturbed by the nitrogen atom of pyridine. The temperature dependence of the spectra is explained by anharmonic interaction with low-frequency vibrations of the complex.
AB - The dependence of the position of a maximum and half-width of stretching bands of surface OH and OD groups of Aerosil perturbed by adsorbed pyridine is studied as a function of the amount of adsorbed molecules, sample temperature, and conditions of vacuum thermal processing. The observed shift of the absorption band maximum of perturbed OH groups upon variation of covering is explained by a change in relative intensities of the bands related to two types of adsorption, when a molecule forms a hydrogen bond with one or two OH groups. The 3450 cm-1 band, which corresponds to the second hydrogen bond between the π-electron ring and the hydroxyl group, is observed as a shoulder of the band related to OH groups perturbed by the nitrogen atom of pyridine. The temperature dependence of the spectra is explained by anharmonic interaction with low-frequency vibrations of the complex.
UR - http://www.scopus.com/inward/record.url?scp=0001827285&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0001827285
VL - 82
SP - 21
EP - 26
JO - OPTICS AND SPECTROSCOPY
JF - OPTICS AND SPECTROSCOPY
SN - 0030-400X
IS - 1
ER -
ID: 41684236