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Saragi RT, Juanes M, Abad JL, Lesarri A, Pinacho R, Rubio JE. Rotational spectroscopy of organophosphorous chemical agents: cresyl and phenyl saligenin phosphates. Phys Chem Chem Phys 2019; 21:16418-16422. [DOI: 10.1039/c9cp03093j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cresyl and phenyl saligenin phosphate have been probed in a jet expansion by broadband chirp-excitation microwave spectroscopy, revealing the most stable confirmations and their structural properties.
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Affiliation(s)
- Rizalina Tama Saragi
- Departamento de Química Física y Química Inorgánica – IU CINQUIMA
- Facultad de Ciencias
- Universidad de Valladolid
- 47011 Valladolid
- Spain
| | - Marcos Juanes
- Departamento de Química Física y Química Inorgánica – IU CINQUIMA
- Facultad de Ciencias
- Universidad de Valladolid
- 47011 Valladolid
- Spain
| | - José Luis Abad
- Departamento de Química Biológica
- Instituto de Química Avanzada de Cataluña (IQAC-CSIC)
- Consejo Superior de Investigaciones Científicas (CSIC)
- 08034 Barcelona
- Spain
| | - Alberto Lesarri
- Departamento de Química Física y Química Inorgánica – IU CINQUIMA
- Facultad de Ciencias
- Universidad de Valladolid
- 47011 Valladolid
- Spain
| | - Ruth Pinacho
- Departamento de Electrónica
- ETSIT
- Universidad de Valladolid
- 47011 Valladolid
- Spain
| | - José Emiliano Rubio
- Departamento de Electrónica
- ETSIT
- Universidad de Valladolid
- 47011 Valladolid
- Spain
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Herman M, Földes T, Didriche K, Lauzin C, Vanfleteren T. Overtone spectroscopy of molecular complexes containing small polyatomic molecules. INT REV PHYS CHEM 2016. [DOI: 10.1080/0144235x.2016.1171039] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Louviot M, Suas-David N, Boudon V, Georges R, Rey M, Kassi S. Strong thermal nonequilibrium in hypersonic CO and CH4 probed by CRDS. J Chem Phys 2015; 142:214305. [DOI: 10.1063/1.4921893] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Robertson EG, Medcraft C, McNaughton D, Appadoo D. The Limits of Rovibrational Analysis: The Severely Entangled ν1 Polyad Vibration of Dichlorodifluoromethane in the Greenhouse IR Window. J Phys Chem A 2014; 118:10944-54. [DOI: 10.1021/jp5087784] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Evan G. Robertson
- Department
of Chemistry and La Trobe Institute of Molecular Sciences, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Chris Medcraft
- School
of Chemistry, Monash University, Melbourne, Victoria 3800 Australia
| | - Don McNaughton
- School
of Chemistry, Monash University, Melbourne, Victoria 3800 Australia
| | - Dominique Appadoo
- Australian Synchrotron, 800 Blackburn
Rd, Clayton, Victoria 3168, Australia
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Evans CJ, Sinik A, Medcraft C, McNaughton D, Appadoo D, Robertson EG. IR Band profiling of dichlorodifluoromethane in the greenhouse window: high-resolution FTIR spectroscopy of ν2 and ν8. J Phys Chem A 2014; 118:2480-7. [PMID: 24611450 DOI: 10.1021/jp501302q] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The IR spectrum of dichlorodifluoromethane (i.e., R12 or Freon-12) is central to its role as a major greenhouse contributor. In this study, high-resolution (0.000 96 cm(-1)) Fourier transform infrared spectra have been measured for R12 samples either cooled to around 150 K or at ambient temperature using facilities on the infrared beamline of the Australian Synchrotron. Over 14,000 lines of C(35)Cl2F2 and C(35)Cl(37)ClF2 were assigned to the b-type ν2 band centered around 668 cm(-1). For the c-type ν8 band at 1161 cm(-1), over 10,000 lines were assigned to the two isotopologues. Rovibrational fits resulted in upper state constants for all these band systems. Localized avoided crossings in the ν8 system of C(35)Cl2F2, resulting from both a direct b-axis Coriolis interaction with ν3 + ν4 + ν7 and an indirect interaction with ν3 + ν4 + ν9, were treated. An improved set of ground state constants for C(35)Cl(37)ClF2 was obtained by a combined fit of IR ground state combination differences and previously published millimeter wave lines. Together these new sets of constants allow for accurate prediction of these bands and direct comparison with satellite data to enable accurate quantification.
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Affiliation(s)
- Corey J Evans
- Department of Chemistry, University of Leicester , University Road, Leicester LE1 7RH, U.K
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Suhm MA, Kollipost F. Femtisecond single-mole infrared spectroscopy of molecular clusters. Phys Chem Chem Phys 2013; 15:10702-21. [DOI: 10.1039/c3cp51515j] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Tsai TR, Rose RA, Weidmann D, Wysocki G. Atmospheric vertical profiles of O3, N2O, CH4, CCl2F2, and H2O retrieved from external-cavity quantum-cascade laser heterodyne radiometer measurements. APPLIED OPTICS 2012; 51:8779-8792. [PMID: 23262617 DOI: 10.1364/ao.51.008779] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2012] [Accepted: 11/02/2012] [Indexed: 06/01/2023]
Abstract
Atmospheric vertical profiles of ozone, nitrous oxide, methane, dichlorodifluoromethane, and water are retrieved from data collected with a widely tunable external-cavity quantum-cascade laser heterodyne radiometer (EC-QC-LHR) covering a spectral range between 1120 and 1238 cm(-1). The instrument was operated in solar occultation mode during a two-month measurement campaign at Rutherford Appleton Laboratory in Oxfordshire, UK, in winter 2010/2011, and ultrahigh-resolution (60 MHz or 0.002 cm(-1)) transmission spectra were recorded for multiple narrow spectral windows (~1 cm(-1) width) specific to each molecule. The ultrahigh spectral resolution of the EC-QC-LHR allows retrieving altitudinal profiles from transmission spectra that contain only few (1-3) significant absorption lines of a target molecule. Profiles are validated by comparing with European Centre for Medium-Range Weather Forecasts operational atmospheric profiles (ozone and water), with other data in the literature (nitrous oxide, methane, dichlorodifluoromethane), and with retrievals from a lower resolution (600 MHz or 0.02 cm(-1)) Fourier transform spectroscopy data that were also recorded during the measurement campaign.
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Affiliation(s)
- Tracy R Tsai
- Electrical Engineering Department, Princeton University, Princeton, New Jersey 08544, USA
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McNaughton D, Robertson EG, Thompson CD, Chimdi T, Bane MK, Appadoo D. Overview of High-Resolution Infrared Measurement and Analysis for Atmospheric Monitoring of Halocarbons. Anal Chem 2010; 82:7958-64. [DOI: 10.1021/ac101425d] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Don McNaughton
- School of Chemistry, Monash University, Wellington Road, Clayton, Victoria 3800, Australia, La Trobe University, Department of Chemistry, Bundoora, Victoria 3086, Australia, and Australian Synchrotron, Blackburn Road, Clayton, Victoria 3168, Australia
| | - Evan G. Robertson
- School of Chemistry, Monash University, Wellington Road, Clayton, Victoria 3800, Australia, La Trobe University, Department of Chemistry, Bundoora, Victoria 3086, Australia, and Australian Synchrotron, Blackburn Road, Clayton, Victoria 3168, Australia
| | - Christopher D. Thompson
- School of Chemistry, Monash University, Wellington Road, Clayton, Victoria 3800, Australia, La Trobe University, Department of Chemistry, Bundoora, Victoria 3086, Australia, and Australian Synchrotron, Blackburn Road, Clayton, Victoria 3168, Australia
| | - Tarekegn Chimdi
- School of Chemistry, Monash University, Wellington Road, Clayton, Victoria 3800, Australia, La Trobe University, Department of Chemistry, Bundoora, Victoria 3086, Australia, and Australian Synchrotron, Blackburn Road, Clayton, Victoria 3168, Australia
| | - Michael K. Bane
- School of Chemistry, Monash University, Wellington Road, Clayton, Victoria 3800, Australia, La Trobe University, Department of Chemistry, Bundoora, Victoria 3086, Australia, and Australian Synchrotron, Blackburn Road, Clayton, Victoria 3168, Australia
| | - Dominique Appadoo
- School of Chemistry, Monash University, Wellington Road, Clayton, Victoria 3800, Australia, La Trobe University, Department of Chemistry, Bundoora, Victoria 3086, Australia, and Australian Synchrotron, Blackburn Road, Clayton, Victoria 3168, Australia
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Luckhaus D, Quack M, Schmitt U, Suhm MA. On FTIR Spectroscopy in Asynchronously Pulsed Supersonic Free Jet Expansions and on the Interpretation of Stretching Spectra of HF Clusters. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bbpc.19950990333] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Jiang H, Appadoo D, Robertson E, McNaughton D. A comparison of predicted and experimental vibrational spectra in some small fluorocarbons. J Comput Chem 2002; 23:1220-5. [PMID: 12210147 DOI: 10.1002/jcc.10115] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The vibrational assignments of difluoromethane, cis and trans 1,2-difluoroethylene, trifluoroethylene, 2-fluoropropene, 1,1-difluoroethylene, and tetrafluoroethylene have been reassessed in the light of recent theoretical work. Inconsistent experimental wave number values and assignments have been clarified, and some changes to the experimental assignments are proposed. The assignments compare favorably with recent scaled density functional theory calculations using the hybrid three-parameter B3-PW91 density functional.
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Affiliation(s)
- He Jiang
- School of Chemistry, P.O. Box 23, Monash University, Victoria, 3800, Australia
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Spherical mirror multipass system for FTIR jet spectroscopy: application to the rovibrationally resolved spectrum of OC5O. J Mol Struct 2002. [DOI: 10.1016/s0022-2860(02)00146-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Benidar A, Georges R, Boissoles J, Hamon S, Canosa A, Rowe BR. Uniform Supersonic Expansion for FTIR Absorption Spectroscopy: The nu(5) Band of (NO)(2) at 26 K. JOURNAL OF MOLECULAR SPECTROSCOPY 2000; 199:92-99. [PMID: 10712875 DOI: 10.1006/jmsp.1999.7986] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A high-resolution Fourier transform interferometer (Bruker IFS 120 HR) was combined with a uniform supersonic expansion produced by means of axisymmetric Laval nozzles. The geometry profile of the nozzle enabled us to work under precise thermodynamic and kinetic conditions. The effect of the cooling rate of different nozzles on cluster nucleation is illustrated. The experimental sensitivity was tested by recording the nu(5) band of (NO)(2) at 26 K. Copyright 2000 Academic Press.
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Affiliation(s)
- A Benidar
- Equipe de Spectroscopie Infrarouge, Equipe d'Astrochimie Expérimentale, Laboratoire PALMS, UMR 6627 CNRS-Université de Rennes I, Campus de Beaulieu, Rennes, 35042, France
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McNaughton D, Evans C. The High-Resolution FTIR Spectrum of Jet-Cooled CH3CF2Cl. JOURNAL OF MOLECULAR SPECTROSCOPY 1997; 182:342-349. [PMID: 9398548 DOI: 10.1006/jmsp.1996.7217] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The infrared spectrum of HCFC-142b, CH3CF2Cl, has been recorded at high and low resolution using a supersonic jet-FTIR spectrometer system. Molecular parameters for a number of vibrational states have been obtained from rovibrational analyses of the C-type bands nu14 (1192 cm-1) and nu15 (967 cm-1), the A-type band nu7 (905 cm-1), and the B-type bands nu5 (1234 cm-1) and nu7 + nu11 (1215 cm-1). A rotational temperature of ca. 50 K in the jet expansion has been estimated from a comparison of the experimental spectrum with band simulations calculated using the resultant molecular constants. Copyright 1997Academic Press
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Affiliation(s)
- D McNaughton
- Department of Chemistry, Monash University, Wellington Road, Clayton, Victoria, 3168, Australia
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Affiliation(s)
- Don McNaughton
- Centre for High Resolution Spectroscopy and Optoelectronic Technology, Department of Chemistry, Monash University, Wellington Road, Clayton, Victoria, 3168, Australia
| | - Corey Evans
- Centre for High Resolution Spectroscopy and Optoelectronic Technology, Department of Chemistry, Monash University, Wellington Road, Clayton, Victoria, 3168, Australia
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McNaughton D, McGilvery D, Robertson EG. High resolution FTIR spectroscopy of CFC's in a supersonic jet expansion. J Mol Struct 1995. [DOI: 10.1016/0022-2860(95)08574-f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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