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DOI	10.1038/s41467-020-20532-2
	Structures and reactivity of peroxy radicals and dimeric products revealed by online tandem mass spectrometry
	Tomaz S.; Wang D.; Zabalegui N.; Li D.; Lamkaddam H.; Bachmeier F.; Vogel A.; Monge M.E.; Perrier S.; Baltensperger U.; George C.; Rissanen M.; Ehn M.; El Haddad I.; Riva M.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	Organic peroxy radicals (RO2) play a pivotal role in the degradation of hydrocarbons. The autoxidation of atmospheric RO2 radicals produces highly oxygenated organic molecules (HOMs), including low-volatility ROOR dimers formed by bimolecular RO2 + RO2 reactions. HOMs can initiate and greatly contribute to the formation and growth of atmospheric particles. As a result, HOMs have far-reaching health and climate implications. Nevertheless, the structures and formation mechanism of RO2 radicals and HOMs remain elusive. Here, we present the in-situ characterization of RO2 and dimer structure in the gas-phase, using online tandem mass spectrometry analyses. In this study, we constrain the structures and formation pathway of several HOM-RO2 radicals and dimers produced from monoterpene ozonolysis, a prominent atmospheric oxidation process. In addition to providing insights into atmospheric HOM chemistry, this study debuts online tandem MS analyses as a unique approach for the chemical characterization of reactive compounds, e.g., organic radicals. © 2021, The Author(s).
语种	英语
scopus关键词	dimer; limonene; monoterpene; peroxy radical; pinene; atmospheric chemistry; formation mechanism; Internet; mass spectrometry; monoterpene; oxidation; oxygenation; ozonation; radical; Article; atmosphere; autooxidation; chemical analysis; chemical reaction; chemical structure; dimerization; gas; ionization; oxidation kinetics; ozonolysis; physical chemistry; physical phase; structure analysis; tandem mass spectrometry
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/251537
作者单位	Univ Lyon, Université Claude Bernard Lyon 1, CNRS, IRCELYON, Villeurbanne, 69626, France; Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, Villigen, 5232, Switzerland; Centro de Investigaciones en Bionanociencias (CIBION), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2390, Ciudad de Buenos Aires, C1425FQD, Argentina; Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires, C1428EGA, Argentina; Institute for Atmospheric and Environmental Sciences, Goethe-University Frankfurt, Frankfurt am Main, 60438, Germany; Institute for Atmospheric and Earth System Research, INAR /Physics, Faculty of Science, University of Helsinki, Helsinki, FI–00014, Finland; Aerosol Physics Laboratory, Physics Unit, Faculty of Engineering and Natural Sciences, Tampere University, Tampere, FI-33101, Finland
推荐引用方式 GB/T 7714	Tomaz S.,Wang D.,Zabalegui N.,et al. Structures and reactivity of peroxy radicals and dimeric products revealed by online tandem mass spectrometry[J],2021,12(1).
APA	Tomaz S..,Wang D..,Zabalegui N..,Li D..,Lamkaddam H..,...&Riva M..(2021).Structures and reactivity of peroxy radicals and dimeric products revealed by online tandem mass spectrometry.Nature Communications,12(1).
MLA	Tomaz S.,et al."Structures and reactivity of peroxy radicals and dimeric products revealed by online tandem mass spectrometry".Nature Communications 12.1(2021).