Journal ArticleDOI
Adsorption of stratospherically important molecules on thin D2O ice films using reflection absorption infrared spectroscopy
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In this article, the adsorption of DCl, CCl4, CFCl3, CF2Cl2 and CF3Cl on thin D2O ice films at 110 K was studied using reflection-absorption infrared spectroscopy (RAIRS).Abstract:
The adsorption of DCl, CCl4, CFCl3, CF2Cl2 and CF3Cl on thin D2O ice films at 110 K has been studied using reflection–absorption infrared spectroscopy (RAIRS). These compounds interact to varying degrees with the ice surface via the OD bonds dangling into the vacuum. DCI was found to dissociate ionically, evidenced by a strong band attributable to D3O+ and the absence of any absorption band for molecular DCl.read more
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An overview of snow photochemistry: evidence, mechanisms and impacts
Amanda M. Grannas,Anna E. Jones,Jack E. Dibb,Markus Ammann,Cort Anastasio,H. J. Beine,Michael H. Bergin,Jan W. Bottenheim,C. S. Boxe,Glenn Carver,G. Chen,James H. Crawford,Florent Domine,Markus M. Frey,Markus M. Frey,Marcelo I. Guzman,Marcelo I. Guzman,Dwayne E. Heard,Detlev Helmig,Michael R. Hoffmann,Richard E. Honrath,L. G. Huey,Manuel A. Hutterli,Hans-Werner Jacobi,Petr Klán,Barry Lefer,J. C. McConnell,John M. C. Plane,Rolf Sander,Joel Savarino,Paul B. Shepson,William R. Simpson,John R. Sodeau,R. von Glasow,Rolf Weller,Eric W. Wolff,Tong Zhu +36 more
TL;DR: In this paper, the authors consider the nature of snow at a fundamental, physical level; photochemical processes within snow and the caveats needed for comparison to atmospheric photochemistry; our current understanding of nitrogen, oxidant, halogen and organic photochemistry within snow; the current limitations faced by the field and implications for the future.
Journal ArticleDOI
Molecular Dynamics Simulation of Hydrochloric Acid Ionization at the Surface of Stratospheric Ice
TL;DR: In this paper, the acid ionization of hydrochloric acid (HCl) at the basal plane surface of ice at 190 kelvin was modeled as a model for the acidification process in Antarctic polar stratospheric clouds (PSCs).
Journal ArticleDOI
Clusters: A bridge across the disciplines of physics and chemistry
Puru Jena,A. W. Castleman +1 more
TL;DR: A systematic study of the structure and properties of clusters composed of a variety of elements has bridged many fields of physics, particularly atomic, molecular, nuclear, and condensed-matter physics.
Journal ArticleDOI
Halogen activation via interactions with environmental ice and snow in the polar lower troposphere and other regions
Jon Abbatt,Jennie L. Thomas,Jennie L. Thomas,Katarina Abrahamsson,C. Boxe,Anna Granfors,Anna E. Jones,Martin D. King,Alfonso Saiz-Lopez,Paul B. Shepson,John R. Sodeau,Darin W. Toohey,Céline Toubin,R. von Glasow,Sumi N. Wren,Xin Yang +15 more
TL;DR: The role of ice in the formation of chemically active halogens in the environment requires a full understanding because of its role in atmospheric chemistry, including controlling the regional atmospheric oxidizing capacity in specific situations as mentioned in this paper.
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Thermodynamics and Kinetics of the Solid Solution of HCl in Ice
Emmanuel Thibert,Florent Domine +1 more
TL;DR: In this article, the equilibrium solubility of HCl in ice has been measured as a function of temperature and HCl partial pressure, between −8 and −35 °C by doping large ice single crystals with gaseous HCl for several weeks.
References
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Journal ArticleDOI
Production of Cl2O2 from the self-reaction of the ClO radical
L. T. Molina,Mario J. Molina +1 more
TL;DR: The species Cl2O2 has been generated in a gaseous flow system at 220-240 K by reacting Cl atoms with one of three different ClO precursors: O3, Cl 2O, or OClO.
Journal ArticleDOI
Matrix‐Isolation Study of the Water Dimer in Solid Nitrogen
Anthony J. Tursi,Eugene R. Nixon +1 more
TL;DR: The infrared spectra of H2O, D2O and HDO in nitrogen matrices at temperatures from 20 to 4°K reveal no evidence of rotation of the water molecules as discussed by the authors.
Journal ArticleDOI
Probing icy surfaces with the dangling‐OH‐mode absorption: Large ice clusters and microporous amorphous ice
TL;DR: In this paper, it has been shown that the dangling bond vibrations of water molecules at the surfaces of crystalline ice clusters and the micropores of amorphous ice have been investigated to determine their usefulness in probing molecular-level events at icy surfaces.
Journal ArticleDOI
Spectra of dangling OH groups at ice cluster surfaces and within pores of amorphous ice
Brad A. Rowland,J. Paul Devlin +1 more
TL;DR: In this article, the intensity of infrared absorption bands, observed for large gas phase ice I clusters and attributed to dangling surface groups dangling at the cluster surfaces, was used to estimate the average size of ice clusters formed under fairly typical static cell conditions.
Journal ArticleDOI
Infrared Spectroscopic Evidence for the Rotation of the Water Molecule in Solid Argon
TL;DR: In this paper, high-resolution spectra of H2O, HDO, and D2O suspended in solid Ar have been observed in the range 4°-27°K.