Interaction of phenol with xenon and nitrogen: Spectroscopic and computational characterizationстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 18 марта 2014 г.
Аннотация:Intermolecular complexes of phenol with xenon and nitrogen are studied by infrared absorption spectroscopy
in a neon matrix and by quantum chemistry calculations. The π complex is theoretically
the most stable 1:1 phenol· · ·Xe structure, but it has no characteristic shifts in the calculated vibrational
spectrum, which complicates its experimental characterization. However, the formation of the
π complex finds indirect but significant support from the experimental results. The calculated spectrum
of the less stable H-bonded complex shows a number of characteristic absorptions, but they are
not observed in the experiment, indicating the lack of its formation. For the phenol· · ·Xen (n = 2–4)
complexes, the calculations predict substantial changes in the vibrational spectra, and the corresponding
bands are observed in the matrices with large concentrations of xenon. Our experiments show the
high efficiency of the formation of large xenon clusters in a neon matrix that can accommodate a major
part of phenol molecules. In contrast to the case of xenon, the H-bonded 1:1 phenol· · ·N2 complex
is found in a neon matrix, and the formation of large N2 clusters embedding phenol molecules is relatively
inefficient.