Carbonyl Sulfide Isotopologues: Ultraviolet Absorption Cross Sections and Stratospheric Photolysis
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Carbonyl Sulfide Isotopologues: Ultraviolet Absorption Cross Sections and Stratospheric Photolysis. / Danielache, Sebastian Oscar; Nanbu, Shinkoh; Eskebjerg, Carsten; Johnson, Matthew Stanley; Yoshida, Naohiro.
I: Journal of Chemical Physics, Bind 131, 13.07.2009, s. 024307-1 - 024307-10.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Carbonyl Sulfide Isotopologues: Ultraviolet Absorption Cross Sections and Stratospheric Photolysis
AU - Danielache, Sebastian Oscar
AU - Nanbu, Shinkoh
AU - Eskebjerg, Carsten
AU - Johnson, Matthew Stanley
AU - Yoshida, Naohiro
N1 - Paper id:: DOI: 10.1063/1.3156314
PY - 2009/7/13
Y1 - 2009/7/13
N2 - Ultraviolet absorption cross sections of the main and substituted carbonyl sulfide isotopologueswere calculated using wavepacket dynamics. The calculated absorption cross section of 16O12C32Sis in very good agreement with the accepted experimental spectrum between 190 and 250 nm.Relative to 16O12C32S, isotopic substitution shows a significant enhancement of the cross section for16O13C32S, a significant reduction for 18O12C32S and 17O12C32S and almost no change for the sulfurisotopologues 16O12C33S, 16O12C34S, and 16O12C36S. The analysis of the initial wavepackets showsthat these changes can be explained in terms of the change in the norm of the initial wavepacket.Implications for our understanding of the stratospheric sulfur cycle are discussed.
AB - Ultraviolet absorption cross sections of the main and substituted carbonyl sulfide isotopologueswere calculated using wavepacket dynamics. The calculated absorption cross section of 16O12C32Sis in very good agreement with the accepted experimental spectrum between 190 and 250 nm.Relative to 16O12C32S, isotopic substitution shows a significant enhancement of the cross section for16O13C32S, a significant reduction for 18O12C32S and 17O12C32S and almost no change for the sulfurisotopologues 16O12C33S, 16O12C34S, and 16O12C36S. The analysis of the initial wavepackets showsthat these changes can be explained in terms of the change in the norm of the initial wavepacket.Implications for our understanding of the stratospheric sulfur cycle are discussed.
M3 - Journal article
VL - 131
SP - 024307-1 - 024307-10
JO - The Journal of Chemical Physics
JF - The Journal of Chemical Physics
SN - 0021-9606
ER -
ID: 17112086