Laser Flash Photolysis Studies of Halogen Atom Reactions of Atmospheric Interest PDF Download
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Author: Patrick L. Laine
Publisher:
ISBN:
Category : Atmosphere
Languages : en
Pages :
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Author: Patrick L. Laine
Publisher:
ISBN:
Category : Atmosphere
Languages : en
Pages :
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Author: Jeffrey M. Cronkhite
Publisher:
ISBN:
Category : Oxides
Languages : en
Pages : 242
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Author: Zhijun Zhao
Publisher:
ISBN:
Category : Dynamics
Languages : en
Pages :
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Radical reactions play central roles in regulating regional air quality and global climate. Some potentially important gas phase radical reactions are being investigated in this research project, including Cl reactions with acetone, butanone, 3-pentanone, pyridine, and dimethyl selenide (DMSe), HO2 complex formation and dissociation with formic and acetic acids, and reactive and non-reactive quenching of O(1D) by the potent greenhouse gases SO2F2, NF3, and SF5CF3. The involved radicals are generated by laser flash photolysis (LFP). Temporal profiles of either the radical reactant or a product are monitored in "real time" using atomic resonance fluorescence spectroscopy (RF), time-resolved UV-visible absorption spectroscopy (TRUVVAS), or tunable diode laser absorption spectroscopy (TDLAS), allowing kinetic and mechanistic information of these reactions to be obtained. These studies provide new knowledge of the investigated radical reactions and facilitate a better understanding of their significance in atmospheric chemistry.
Author: Rafal Strekowski
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ISBN:
Category : Hydrocyanic acid
Languages : en
Pages : 380
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Category :
Languages : en
Pages : 616
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Author:
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ISBN:
Category : Atmospheric chemistry
Languages : en
Pages : 576
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Author: Venus Maria Christina Dookwah-Roberts
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Category : Atmospheric chemistry
Languages : en
Pages :
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A number of weakly bound adducts play important roles in atmospheric chemistry, such as DMS OH and CS2 OH. The work comprising this dissertation involves kinetic and spectroscopic studies of adducts formed between halogen atoms and the important atmospheric trace gases CS2, CH3SCH3 (DMS), CH3I, and C2H5I. The results reported in these studies are useful for developing an understanding of the reactivity of these species and for testing the ability of electronic structure theory and reaction rate theory to predict or rationalize any observed trends. Oxidative pathways of both alkyl halides and sulfur compounds, especially DMS, are of atmospheric interest based on the roles of these species in affecting the oxidizing capacity of the troposphere and in the formation of new particles which impact the Earth s radiation budget and climate variability. The experimental approach employed laser flash photolysis (LFP) coupled with time resolved UV-visible absorption spectroscopy (TRUVVAS) to investigate the spectroscopy and kinetics of the gas phase adducts: SCS Cl, CH3I Cl, C2H5I Cl, (CH3)2S Br, and (CH3)2S I.
Author:
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Category : Dissertations, Academic
Languages : en
Pages : 680
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Category : Power resources
Languages : en
Pages : 1224
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Author:
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ISBN:
Category : Chemistry
Languages : en
Pages : 634
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