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Lu B, Song C, Liu J, Trabelsi T, Francisco JS, Wang L, Zeng X. Dihalogenated Methylperoxy Radicals: Spectroscopic Characterization and Photodecomposition by Release of HO .. Chemistry 2020; 26:2817-2820. [PMID: 31899574 DOI: 10.1002/chem.201905858] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Indexed: 11/08/2022]
Abstract
Two atmospherically relevant dihalogenated methylperoxy radicals CHX2 OO. (X=F and Cl) have been generated through O2 -oxidation of the corresponding alkyl radicals CHX2 . in the gas phase. The IR spectroscopic characterization of both radicals in cryogenic Ar- and N2 -matrices (15 K) is supported by 18 O-labeling and ab initio calculations at the UCCSD(T)/aug-cc-pVTZ level. Upon 266 nm laser irradiation, both radicals decompose mainly by releasing hydroxyl radicals (→HO. +X2 CO) via the intermediacy of intriguing α-hydroperoxyalkyl radicals (. CX2 OOH), implying that the photooxidation of dihalogenated hydrocarbons might serve as important sources of HO. radicals in the atmosphere.
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Affiliation(s)
- Bo Lu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
| | - Chao Song
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
| | - Jie Liu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
| | - Tarek Trabelsi
- Department of Earth and Environmental Science and Department of, Chemistry, University of Pennsylvania, Pennsylvania, 19104, USA
| | - Joseph S Francisco
- Department of Earth and Environmental Science and Department of, Chemistry, University of Pennsylvania, Pennsylvania, 19104, USA
| | - Lina Wang
- Department of Chemistry, Fudan University, Shanghai, 200433, P. R. China
| | - Xiaoqing Zeng
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China.,Department of Chemistry, Fudan University, Shanghai, 200433, P. R. China
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Wu Z, Xu J, Deng G, Chu X, Sokolenko L, Trabelsi T, Francisco JS, Eckhardt AK, Schreiner PR, Zeng X. The Trifluoromethyl Sulfinyl and Oxathiyl Radicals. Chemistry 2017; 24:1505-1508. [DOI: 10.1002/chem.201705142] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Indexed: 11/07/2022]
Affiliation(s)
- Zhuang Wu
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
| | - Jian Xu
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
| | - Guohai Deng
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
| | - Xianxu Chu
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
| | - Liubov Sokolenko
- Organofluorine Chemistry Department, Institute of Organic Chemistry; National Academy of Sciences of Ukraine; Kiev-94 02660 Ukraine
| | - Tarek Trabelsi
- University of Nebraska-Lincoln; Lincoln Nebraska 68526 USA
| | - Joseph S. Francisco
- Department of Chemistry; Purdue University; West Lafayette Indiana 47907 USA
| | - André K. Eckhardt
- Institute of Organic Chemistry; Justus-Liebig University; Heinrich-Buff-Ring 17 35392 Giessen Germany
| | - Peter R. Schreiner
- Institute of Organic Chemistry; Justus-Liebig University; Heinrich-Buff-Ring 17 35392 Giessen Germany
| | - Xiaoqing Zeng
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
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Cedrowski J, Litwinienko G, Baschieri A, Amorati R. Hydroperoxyl Radicals (HOO.
): Vitamin E Regeneration and H-Bond Effects on the Hydrogen Atom Transfer. Chemistry 2016; 22:16441-16445. [DOI: 10.1002/chem.201603722] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Indexed: 01/07/2023]
Affiliation(s)
- Jakub Cedrowski
- Faculty of Chemistry; University of Warsaw; Pasteura 1 02-093 Warsaw Poland
| | | | - Andrea Baschieri
- Department of Chemistry “G. Ciamician”; University of Bologna; Via S. Giacomo 11 40126 Bologna Italy
| | - Riccardo Amorati
- Department of Chemistry “G. Ciamician”; University of Bologna; Via S. Giacomo 11 40126 Bologna Italy
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