1
|
Xu G, Chu Y. Theoretical study on the kinetics of the CF3O + NO reaction. COMPUT THEOR CHEM 2020. [DOI: 10.1016/j.comptc.2020.112861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
2
|
Czarnowski J. Formation of bromodifluoroacetyl fluoride, CF2BrC(O)F, in the thermal gas-phase oxidation of bromotrifluoroethene, CF2CFBr, initiated by trifluoromethylhypofluorite, CF3OF. J Fluor Chem 2006. [DOI: 10.1016/j.jfluchem.2006.02.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
3
|
von Ahsen S, Francisco JS. Spectroscopic evidence for the existence of the CF3OSO3 radical. J Phys Chem A 2005; 109:9193-5. [PMID: 16833257 DOI: 10.1021/jp054956d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The first spectroscopic evidence for the existence of the CF(3)OSO(3) radical has been obtained from matrix isolation and FT-IR and UV spectroscopic studies. The vibrational frequencies measured are in reasonable agreement with predictions from density functional calculations. Upon visible and UV photolysis of the CF(3)OSO(3) radical, SO(3) is produced and provides experimental support for a new light-driven route for the oxidation of SO(2) to SO(3) assisted by CF(3)O radicals.
Collapse
Affiliation(s)
- Stefan von Ahsen
- Bergische Universität Wuppertal, Fachbereich C/Anorganische Chemie, 42097 Wuppertal, Germany.
| | | |
Collapse
|
4
|
von Ahsen S, García P, Willner H, Argüello GA. Trifluoromethoxycarbonyl Peroxynitrate, CF3OC(O)OONO2. Inorg Chem 2005; 44:5713-8. [PMID: 16060622 DOI: 10.1021/ic0504994] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The trioxide, CF(3)OC(O)OOOC(O)OCF(3), reacts with NO(2) at 0 degrees C to yield the new peroxynitrate, CF(3)OC(O)OONO(2), which is stable for hours at room temperature. It is spectroscopically characterized and some thermal properties are reported. From the vapor pressure, ln(p/p(0)) = 14.06 - 4565/T, of the liquid above the melting point of -89 degrees C, the extrapolated boiling point is 52 degrees C. CF(3)OC(O)OONO(2) dissociates at higher temperatures and low pressures into the radicals CF(3)OC(O)OO and NO(2) as demonstrated by matrix isolation experiments. The matrix-isolated peroxy radicals consist in a rotameric mixture of trans,trans,trans-CF(3)OC(O)OO and trans,trans,cis-CF(3)OC(O)OO, where trans and cis denote dihedral angles of ca. 180 degrees and 0 degree, respectively, around beta F-C-O-C, beta C-O-C-O, and beta O-C-O-O, with an equilibrium composition dependent on the thermolysis temperature. The radical trans,trans,cis-CF(3)OC(O)OO is found to be ca. 3 kJ mol(-1) higher in enthalpy than trans,trans,trans-CF(3)OC(O)OO. DFT calculations are performed to support the vibrational assignments and to provide structural information about CF(3)OC(O)OONO(2).
Collapse
Affiliation(s)
- Stefan von Ahsen
- FB C/Anorganische Chemie, Bergische Universität Wuppertal, Germany
| | | | | | | |
Collapse
|
5
|
|
6
|
Romano RM, Della Védova CO, Czarnowski J. Kinetics and mechanism of the thermal gas-phase oxidation of perfluorobutene-2 in presence of trifluoromethyl hypofluorite. INT J CHEM KINET 2003. [DOI: 10.1002/kin.10138] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
7
|
Argüello GA, Willner H. IR and UV Absorption Spectrum of the Trifluoromethoxy Radical, CF3O·, Isolated in Rare Gas Matrices. J Phys Chem A 2001. [DOI: 10.1021/jp002960d] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gustavo A. Argüello
- FB 6-Anorganische Chemie, Gerhard-Mercator-Universität Duisburg, Lotharstrasse 1, D-47048 Duisburg, Germany
| | - Helge Willner
- FB 6-Anorganische Chemie, Gerhard-Mercator-Universität Duisburg, Lotharstrasse 1, D-47048 Duisburg, Germany
| |
Collapse
|
8
|
Sander S, Pernice H, Willner H. IR and UV spectra of the matrix-isolated peroxy radicals CF3OO, trans-FC(O)OO, and cis-FC(O)OO. Chemistry 2000; 6:3645-53. [PMID: 11072830 DOI: 10.1002/1521-3765(20001002)6:19<3645::aid-chem3645>3.0.co;2-#] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The peroxy radicals CF3OO and FC(O)OO are prepared in high yields by vacuum flash pyrolysis of ROONO2 or ROOOR (R=CF3, FC(O)), highly diluted in inert gases, and subsequent isolation in inert-gas matrices by quenching the product mixtures at low temperatures. The IR spectrum of FC(O)OO was observed for the first time and eight fundamentals as well as several combinations were measured and assigned for both cis and trans rotamers of FC(O)OO. Discrepancies in an earlier assignment of the fundamentals of CF3OO have been eliminated and its IR spectrum is reported fully. The matrix UV spectra of both peroxy radicals (X2A"--> 2(2)A" transition) are in agreement with the gas-phase spectra; however, there are differences in the absorption cross-sections, for which possible reasons are discussed. The X2A"--> 1(2)A' transitions in the near IR region are too weak to be detected with our instrumentation.
Collapse
Affiliation(s)
- S Sander
- FB6-Anorganische Chemie, Gerhard-Mercator-Unviersitat Duisburg, Germany
| | | | | |
Collapse
|
9
|
Sianesi D, Guarda PA, Marchionni G. A Kinetic and Mechanistic Study of the Low-Temperature Fluorine-Initiated Copolymerization of Tetrafluoroethylene with Oxygen. Macromolecules 1999. [DOI: 10.1021/ma9906985] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Dario Sianesi
- AUSIMONT S.p.A., R&D Center, Via S. Pietro 50/A, 20021 Bollate-Milano, Italy
| | - Pier Antonio Guarda
- AUSIMONT S.p.A., R&D Center, Via S. Pietro 50/A, 20021 Bollate-Milano, Italy
| | - Giuseppe Marchionni
- AUSIMONT S.p.A., R&D Center, Via S. Pietro 50/A, 20021 Bollate-Milano, Italy
| |
Collapse
|
10
|
Hasson AS, Smith IWM. Chlorine Atom Initiated Oxidation of Chlorinated Ethenes: Results for 1,1-Dichloroethene (H2CCCl2), 1,2-Dichloroethene (HClCCClH), Trichloroethene (HClCCCl2), and Tetrachloroethene (Cl2CCCl2). J Phys Chem A 1999. [DOI: 10.1021/jp983583w] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alam S. Hasson
- The School of Chemistry, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Ian W. M. Smith
- The School of Chemistry, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| |
Collapse
|
11
|
Czarnowski J. Kinetics and Mechanism of the Thermal Gas-Phase Oxidation of Tetrachloroethene by Molecular Oxygen in Presence of Trifluoromethylhypofluorite, CF3OF. Z PHYS CHEM 1998. [DOI: 10.1524/zpch.1998.203.part_1_2.183] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
12
|
Chen J, Young V, Niki H, Magid H. Kinetic and Mechanistic Studies for Reactions of CF3CH2CHF2 (HFC-245fa) Initiated by H-Atom Abstraction Using Atomic Chlorine. J Phys Chem A 1997. [DOI: 10.1021/jp963735s] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Junyi Chen
- Centre for Atmospheric Chemistry and Department of Chemistry, York University, 4700 Keele Street, North York, Ontario, Canada M3J 1P3
| | - Valerie Young
- Centre for Atmospheric Chemistry and Department of Chemistry, York University, 4700 Keele Street, North York, Ontario, Canada M3J 1P3
| | - Hiromi Niki
- Centre for Atmospheric Chemistry and Department of Chemistry, York University, 4700 Keele Street, North York, Ontario, Canada M3J 1P3
| | - Hillel Magid
- Buffalo Research Laboratory, AlliedSignal, Inc., 20 Peabody Street, Buffalo, New York 14210
| |
Collapse
|
13
|
McKelvy ML, Britt TR, Davis BL, Gillie JK, Lentz LA, Leugers A, Nyquist RA, Putzig CL. Infrared Spectroscopy. Anal Chem 1996. [DOI: 10.1021/a1960003c] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Marianne L. McKelvy
- Analytical Sciences Laboratory, The Dow Chemical Company, Michigan Division, Midland, Michigan 48667
| | - Thomas R. Britt
- Analytical Sciences Laboratory, The Dow Chemical Company, Michigan Division, Midland, Michigan 48667
| | - Bradley L. Davis
- Analytical Sciences Laboratory, The Dow Chemical Company, Michigan Division, Midland, Michigan 48667
| | - J. Kevin Gillie
- Analytical Sciences Laboratory, The Dow Chemical Company, Michigan Division, Midland, Michigan 48667
| | - L. Alice Lentz
- Analytical Sciences Laboratory, The Dow Chemical Company, Michigan Division, Midland, Michigan 48667
| | - Anne Leugers
- Analytical Sciences Laboratory, The Dow Chemical Company, Michigan Division, Midland, Michigan 48667
| | - Richard A. Nyquist
- Analytical Sciences Laboratory, The Dow Chemical Company, Michigan Division, Midland, Michigan 48667
| | - Curtis L. Putzig
- Analytical Sciences Laboratory, The Dow Chemical Company, Michigan Division, Midland, Michigan 48667
| |
Collapse
|
14
|
Czarnowski J. Kinetics and Mechanism of the Thermal Gas-phase Oxidation of Trichloroethene by Molecular Oxygen in Presence of Trifluoromethylhypofluorite, CF3OF. Z PHYS CHEM 1995. [DOI: 10.1524/zpch.1995.191.part_1.103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|