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Nassar R, Bernath PF, Boone CD, Clerbaux C, Coheur PF, Dufour G, Froidevaux L, Mahieu E, McConnell JC, McLeod SD, Murtagh DP, Rinsland CP, Semeniuk K, Skelton R, Walker KA, Zander R. A global inventory of stratospheric chlorine in 2004. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2006jd007073] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Yang ES, Cunnold DM, Salawitch RJ, McCormick MP, Russell J, Zawodny JM, Oltmans S, Newchurch MJ. Attribution of recovery in lower-stratospheric ozone. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2005jd006371] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Schauffler SM. Chlorine budget and partitioning during the Stratospheric Aerosol and Gas Experiment (SAGE) III Ozone Loss and Validation Experiment (SOLVE). ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2001jd002040] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Abstract
Low pressure flash thermolysis of different precursor molecules containing-ClO, -ClO3 or -OClO3 yield, when highly diluted in Ne or O2 and subsequent quenching of the products in a matrix at 5 or 15 K, ClOx (x = 1, 3, 4) radicals, respectively. If Ne or O2 gas is directed over solid ClO2 at -120 degrees C and the resulting gas mixtures are immediately deposited as a matrix, a high fraction of (OClO)2 is trapped. This enables recording of IR and UV spectra of weakly bonded (OClO)2 dimers and detailed studying of their photochemistry. For Ne or O2 matrix isolated ClO radicals the vibrational wavenumbers and electronic transitions are only slightly affected compared with the gas phase. In this study strong evidence is found for long lived ClO in the electronically excited 2 [symbol: see text] 1/2 state. A comprehensive IR study of Ne matrix isolated ClO3 (fundamentals at 1081, 905, 567, 476 cm-1) yield i) a reliable force field; ii) a OClO bond angle of alpha e = 113.8 +/- 1 degrees and iii) a ClO bond length of 148.5 +/- 2 pm in agreement with predicted data from quantum chemical calculations. The UV/Vis spectrum of ClO3 isolated in a Ne matrix (lambda max at 32,100 and 23,150 cm-1) agrees well with the photoelectron spectrum of ClO3- and theoretical predictions. The origin of the structured high energy absorption is at 22,696 cm-1 and three fundamentals (794, 498, 280 cm-1) are detected in the C2E state. By photolysis of ClO3 with visible light the complex ClO.O2 with ClO in the 2 [symbol: see text] 1/2 state is formed. In an extended spectroscopic study of the elusive ClO4 radical, isolated in a Ne or O2 matrix, three additional IR bands, a complete UV spectrum and a strong interaction with O2 are found. This leads to the conclusion that ClO4 exhibits C2v or Cs symmetry with a shallow potential minimum and forms with O2 the previously unknown peroxy radical O3ClO-O2. All these results are discussed in the context of recent developments in the chemistry and spectroscopy of the important and interesting ClOx (x = 1-4) family of radicals.
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Affiliation(s)
- Rodion Kopitzky
- Fakultät 4, Anorganische Chemie Gerhard-Mercator Universität Duisburg, Lotharstrasse 1 47048 Duisburg, Germany
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Salawitch RJ. Chemical loss of ozone during the Arctic winter of 1999/2000: An analysis based on balloon-borne observations. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2001jd000620] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Wang JJ, Keyser LF. HCl Yield from the OH + ClO Reaction at Temperatures between 218 and 298 K. J Phys Chem A 2001. [DOI: 10.1021/jp0106449] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jin Jin Wang
- Atmospheric Chemistry Element, Earth and Space Sciences Division, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109
| | - Leon F. Keyser
- Atmospheric Chemistry Element, Earth and Space Sciences Division, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109
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Voss PB, Stimpfle RM, Cohen RC, Hanisco TF, Bonne GP, Perkins KK, Lanzendorf EJ, Anderson JG, Salawitch RJ, Webster CR, Scott DC, May RD, Wennberg PO, Newman PA, Lait LR, Elkins JW, Bui TP. Inorganic chlorine partitioning in the summer lower stratosphere: Modeled and measured [ClONO2]/[HCl] during POLARIS. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000jd900494] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Webster CR, Michelsen HA, Gunson MR, Margitan JJ, Russell JM, Toon GC, Traub WA. Response of lower stratospheric HCl/Clyto volcanic aerosol: Observations from aircraft, balloon, space shuttle, and satellite instruments. ACTA ACUST UNITED AC 2000. [DOI: 10.1029/1999jd901135] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Bonne GP, Stimpfle RM, Cohen RC, Voss PB, Perkins KK, Anderson JG, Salawitch RJ, Elkins JW, Dutton GS, Jucks KW, Toon GC. An examination of the inorganic chlorine budget in the lower stratosphere. ACTA ACUST UNITED AC 2000. [DOI: 10.1029/1999jd900996] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Toon GC, Blavier JF, Sen B, Margitan JJ, Webster CR, May RD, Fahey D, Gao R, Del Negro L, Proffitt M, Elkins J, Romashkin PA, Hurst DF, Oltmans S, Atlas E, Schauffler S, Flocke F, Bui TP, Stimpfle RM, Bonne GP, Voss PB, Cohen RC. Comparison of MkIV balloon and ER-2 aircraft measurements of atmospheric trace gases. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999jd900379] [Citation(s) in RCA: 93] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Flocke F, Herman RL, Salawitch RJ, Atlas E, Webster CR, Schauffler SM, Lueb RA, May RD, Moyer EJ, Rosenlof KH, Scott DC, Blake DR, Bui TP. An examination of chemistry and transport processes in the tropical lower stratosphere using observations of long-lived and short-lived compounds obtained during STRAT and POLARIS. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999jd900504] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Stimpfle RM, Cohen RC, Bonne GP, Voss PB, Perkins KK, Koch LC, Anderson JG, Salawitch RJ, Lloyd SA, Gao RS, Del Negro LA, Keim ER, Bui TP. The coupling of ClONO2, ClO, and NO2in the lower stratosphere from in situ observations using the NASA ER-2 aircraft. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999jd900288] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Newman PA, Fahey DW, Brune WH, Kurylo MJ, Kawa SR. Preface [to special section on Photochemistry of Ozone Loss in the Arctic Region in Summer (POLARIS)]. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999jd900832] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Lloyd S, Swartz WH, Kusterer T, Anderson D, McElroy CT, Midwinter C, Hall R, Nassim K, Jaffe D, Simpson W, Kelley J, Nicks D, Griffin D, Johnson B, Evans R, Quincy D, Oltmans S, Newman P, McPeters R, Labow G, Moy L, Seftor C, Toon G, Sen B, Blavier JF. Intercomparison of total ozone observations at Fairbanks, Alaska, during POLARIS. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999jd900468] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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