| Mechanistic studies on the formation of trifluoromethyl sulfur pentafluoride, SF5CF3--a greenhouse gas. | |
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MedLine Citation:
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PMID: 17256845 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The formation of SF5CF3(X1A'), through the radical-radical recombination of SF5(X2A1) and CF3(X2A1), was observed for the first time in low-temperature sulfur hexafluoride-carbon tetrafluoride matrices at 12 K via infrared spectroscopy upon irradiation of the ices with energetic electrons. The nu1 fundamentals of the SF5(X2A1) and CF3(X2A1) radicals were monitored at 857 and 1110 cm-1, respectively; the newly formed trifluoromethyl sulfur pentafluoride molecule, SF5CF3(X1A'), was detected via its absorptions at 846 and 1160 cm-1. This formation mechanism suggests that a source for this potentially dangerous greenhouse gas might be the recombination of SF5(X2A1) and CF3(X2A1) radicals on aerosol particles in the terrestrial atmosphere. |
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Authors:
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William Carrier; Corey S Jamieson; Ralf I Kaiser |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S. Date: 2007-01-26 |
Journal Detail:
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Title: Inorganic chemistry Volume: 46 ISSN: 0020-1669 ISO Abbreviation: Inorg Chem Publication Date: 2007 Feb |
Date Detail:
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Created Date: 2007-02-12 Completed Date: 2007-04-05 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0366543 Medline TA: Inorg Chem Country: United States |
Other Details:
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Languages: eng Pagination: 1332-6 Citation Subset: IM |
Affiliation:
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Department of Chemistry, University of Hawaii at Manoa, Honolulu, HI 96822, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Aerosols
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chemistry Atmosphere / chemistry Carbon / chemistry Free Radicals / chemistry Greenhouse Effect* Hydrocarbons, Fluorinated / chemistry* Particle Size Spectrum Analysis Sulfur / chemistry Sulfur Compounds / chemistry* Temperature Time Factors |
| Chemical | |
Reg. No./Substance:
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0/Aerosols; 0/Free Radicals; 0/Hydrocarbons, Fluorinated; 0/SF5CF3; 0/Sulfur Compounds; 7440-44-0/Carbon; 7704-34-9/Sulfur |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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