Reconstruction of water ice: the neglected process OH + OH → H2O + O
نویسندگان
چکیده
منابع مشابه
Atom Tunneling in the Water Formation Reaction H2 + OH → H2O + H on an Ice Surface
OH radicals play a key role as an intermediate in the water formation chemistry of the interstellar medium. For example the reaction of OH radicals with H2 molecules is among the final steps in the astrochemical reaction network starting from O, O2, and O3. Experimentally it was shown that even at 10 K this reaction occurs on ice surfaces. As the reaction has a high activation energy only atom ...
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Theoretical simulations are performed for the vibrational spectra of selected isomers of OH(-)(H(2)O)(3) and OH(-)(H(2)O)(4) clusters to understand the origin of the difference in the experimental OH stretching fundamental spectra between these clusters reported by Robertson et al. [Science, 2003, 299, 1367]. Vibrational excitation energies and intensities are calculated by combining the adiaba...
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A search for the near-infrared water-ice absorption band was made in a number of very red OH/IR stars which are known to exhibit the 10μm silicate absorption. As a by-product, accurate positions of these highly reddened objects are obtained. We derived a dust mass loss rate for each object by modelling the spectral energy distribution and the gas mass loss rate by solving the equation of motion...
متن کامل[Al(H2O)6][Cr(OH)6Mo6O18]·10H2O
The title compound, [Al(H(2)O)(6)][Cr(OH)(6)Mo(6)O(18)]·10H(2)O, hexa-aqua-aluminium hexa-hydroxidoocta-deca-oxido-molybdo-chromate(III) deca-hydrate, crystallizes isotypically with its gallium analogue [Ga(H(2)O)(6)][Cr(OH)(6)Mo(6)O(18)].10H(2)O. In the structure of the title compound, both the [Al(H(2)O)(6)](3+) cation and the Anderson-type [Cr(OH)(6)Mo(6)O(18)](3-) anion lie on centres of in...
متن کاملMagnetocaloric effect and thermal conductivity of Gd(OH)3 and Gd2O(OH)4(H2O)2.
Magnetocaloric effect (MCE) and thermal conductivity of two gadolinium hydroxides, Gd(OH)3 (1) and Gd2O(OH)4(H2O)2 (2), are investigated. Magnetic studies indicate that both 1 and 2 exhibit antiferromagnetic interaction, and the MCE values for 1 and 2 at 2 K and ΔH = 7 T are 62.00 J kg(-1) K(-1) and 59.09 J kg(-1) K(-1), respectively. Investigation of their thermal conductivity reveals that the...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2020
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/202037771