Mobility of haloforms on ice surfaces

M L Grecea, E H G Backus, H J Fraser, T Pradeep, A W Kleyn, M Bonn

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

We have investigated the mobility of bromoform (CHBr3) and chloroform (CHCl3) on amorphous solid water and crystalline ice surfaces, by monitoring their adsorption and desorption behavior using temperature programmed desorption spectroscopy and reflection absorption infrared spectroscopy. Up to its desorption temperature, of 140 K, CHCl3 does not diffuse over the crystalline ice surface, whereas CHBr3 is found to be mobile at temperatures as low as 85 K. The results demonstrate distinct differences between the surface mobility of structurally similar haloform molecules on crystalline ice surfaces, which may have implications to the halocarbon chemistry occurring on atmospheric ice particles. (C) 2004 Elsevier B.V. All rights reserved.

LanguageEnglish
Pages244-248
Number of pages5
JournalChemical Physics Letters
Volume385
Issue number3-4
DOIs
Publication statusPublished - 9 Feb 2004

Fingerprint

Ice
ice
desorption
Crystalline materials
Desorption
Halocarbons
halocarbons
Temperature programmed desorption
Chloroform
chloroform
Absorption spectroscopy
temperature
Infrared spectroscopy
absorption spectroscopy
infrared spectroscopy
Spectroscopy
chemistry
Adsorption
Temperature
Molecules

Keywords

  • amorphous solid water
  • crystalline ice
  • stratospheric bromine
  • adsorption
  • ozone
  • films
  • bromoform
  • spectroscopy

Cite this

Grecea, M. L., Backus, E. H. G., Fraser, H. J., Pradeep, T., Kleyn, A. W., & Bonn, M. (2004). Mobility of haloforms on ice surfaces. Chemical Physics Letters, 385(3-4), 244-248. https://doi.org/10.1016/j.cplett.2003.12.085
Grecea, M L ; Backus, E H G ; Fraser, H J ; Pradeep, T ; Kleyn, A W ; Bonn, M . / Mobility of haloforms on ice surfaces. In: Chemical Physics Letters. 2004 ; Vol. 385, No. 3-4. pp. 244-248.
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Grecea, ML, Backus, EHG, Fraser, HJ, Pradeep, T, Kleyn, AW & Bonn, M 2004, 'Mobility of haloforms on ice surfaces' Chemical Physics Letters, vol. 385, no. 3-4, pp. 244-248. https://doi.org/10.1016/j.cplett.2003.12.085

Mobility of haloforms on ice surfaces. / Grecea, M L ; Backus, E H G ; Fraser, H J ; Pradeep, T ; Kleyn, A W ; Bonn, M .

In: Chemical Physics Letters, Vol. 385, No. 3-4, 09.02.2004, p. 244-248.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Mobility of haloforms on ice surfaces

AU - Grecea, M L

AU - Backus, E H G

AU - Fraser, H J

AU - Pradeep, T

AU - Kleyn, A W

AU - Bonn, M

PY - 2004/2/9

Y1 - 2004/2/9

N2 - We have investigated the mobility of bromoform (CHBr3) and chloroform (CHCl3) on amorphous solid water and crystalline ice surfaces, by monitoring their adsorption and desorption behavior using temperature programmed desorption spectroscopy and reflection absorption infrared spectroscopy. Up to its desorption temperature, of 140 K, CHCl3 does not diffuse over the crystalline ice surface, whereas CHBr3 is found to be mobile at temperatures as low as 85 K. The results demonstrate distinct differences between the surface mobility of structurally similar haloform molecules on crystalline ice surfaces, which may have implications to the halocarbon chemistry occurring on atmospheric ice particles. (C) 2004 Elsevier B.V. All rights reserved.

AB - We have investigated the mobility of bromoform (CHBr3) and chloroform (CHCl3) on amorphous solid water and crystalline ice surfaces, by monitoring their adsorption and desorption behavior using temperature programmed desorption spectroscopy and reflection absorption infrared spectroscopy. Up to its desorption temperature, of 140 K, CHCl3 does not diffuse over the crystalline ice surface, whereas CHBr3 is found to be mobile at temperatures as low as 85 K. The results demonstrate distinct differences between the surface mobility of structurally similar haloform molecules on crystalline ice surfaces, which may have implications to the halocarbon chemistry occurring on atmospheric ice particles. (C) 2004 Elsevier B.V. All rights reserved.

KW - amorphous solid water

KW - crystalline ice

KW - stratospheric bromine

KW - adsorption

KW - ozone

KW - films

KW - bromoform

KW - spectroscopy

U2 - 10.1016/j.cplett.2003.12.085

DO - 10.1016/j.cplett.2003.12.085

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VL - 385

SP - 244

EP - 248

JO - Chemical Physics Letters

T2 - Chemical Physics Letters

JF - Chemical Physics Letters

SN - 0009-2614

IS - 3-4

ER -

Grecea ML, Backus EHG, Fraser HJ, Pradeep T, Kleyn AW, Bonn M. Mobility of haloforms on ice surfaces. Chemical Physics Letters. 2004 Feb 9;385(3-4):244-248. https://doi.org/10.1016/j.cplett.2003.12.085