Инд. авторы:	Gorshunov B.P., Zhukova E.S., Torgashev V.I., Lebedev V.V., Shakurov G.S., Kremer R.K., Pestrjakov E.V., Thomas V.G., Fursenko D.A., Dressel M.
Заглавие:	Quantum behavior of water molecules confined to nanocavities in gemstones
Библ. ссылка:	Gorshunov B.P., Zhukova E.S., Torgashev V.I., Lebedev V.V., Shakurov G.S., Kremer R.K., Pestrjakov E.V., Thomas V.G., Fursenko D.A., Dressel M. Quantum behavior of water molecules confined to nanocavities in gemstones // Journal of Physical Chemistry Letters. - 2013. - Vol.4. - Iss. 12. - P.2015-2020. - ISSN 1948-7185.
Внешние системы:	DOI: 10.1021/jz400782j; SCOPUS: 2-s2.0-84879742317;
Реферат:	eng: When water is confined to nanocavities, its quantum mechanical behavior can be revealed by terahertz spectroscopy. We place H2O molecules in the nanopores of a beryl crystal lattice and observe a rich and highly anisotropic set of absorption lines in the terahertz spectral range. Two bands can be identified, which originate from translational and librational motions of the water molecule isolated within the cage; they correspond to the analogous broad bands in liquid water and ice. In the present case of well-defined and highly symmetric nanocavities, the observed fine structure can be explained by macroscopic tunneling of the H2O molecules within a six-fold potential caused by the interaction of the molecule with the cavity walls. © 2013 American Chemical Society.
Ключевые слова:	Vibrational spectroscopy; Terahertz spectroscopy; Quantum theory; Porous materials; Nanopores; Terahertz spectral range; Quantum-mechanical behavior; Quantum tunneling; Nanocages; Molecules; Macroscopic tunneling; Librational motions; Confined water; vibrational spectroscopy; terahertz spectroscopy; quantum tunneling; nanoporous material; nanocages; confined water; Nano-porous materials;
Издано:	2013
Физ. характеристика:	с.2015-2020