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Marzouk S, Ajili Y, Lique F, Ben El Hadj Rhouma M, Al Mogren MM, Hochlaf M. IO(X 2Π)-Ar cluster: ab initio potential energy surface and dynamical computations. Phys Chem Chem Phys 2020; 22:740-747. [PMID: 31833508 DOI: 10.1039/c9cp05310g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Iodine oxide (IO) is an important tropospheric molecule. In the present paper, we mapped the potential energy surfaces (PESs) of the doubly degenerate IO(X2Π)-Ar van der Waals system using single- and double-excitation coupled cluster approaches with non-iterative perturbation treatment of triple excitations [RCCSD(T)] extrapolated to the complete basis set (CBS) limit. In addition to bent local minima, we identified a linear Ar-IO complex as a global minimum. Afterwards, we performed scattering calculations on these PESs, considering the non-zero spin-orbit contribution and the Renner-Teller effect. The integral cross-sections exhibit an oscillatory structure vs. the final rotational state, as already observed for the NO(X2Π)-Ar system. Moreover, computations reveal that the Ar-IO complex is stable toward dissociation into IO and Ar. Therefore, it can be found in the atmosphere and participates in iodine compound physical chemical processes occurring there.
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Affiliation(s)
- S Marzouk
- Laboratoire de Recherche d'Etude des Milieux Ionisés et Réactifs (EMIR), Institut Préparatoire aux Etudes d'Ingénieurs de Monastir, Université de Monastir, Tunisia
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Noorisafa Z, Sabzyan H, Keshavarz E. Metastable excited states of OBr2- and OCl2- dianions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 132:672-677. [PMID: 24907970 DOI: 10.1016/j.saa.2014.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 02/21/2014] [Accepted: 05/08/2014] [Indexed: 06/03/2023]
Abstract
Electronic stabilities, structures, properties, and spectroscopic constants of the halogen oxide dianions OBr2- and OCl2- and their singly charged anions which are of astrophysical and laboratory interests have been studied. The X2Σ states of OBr2- and OCl2- are metastable with PECs having smooth wells with minima located at R=1.859 Å and 1.776 Å, and Coulomb barriers of 40402.54987 cm(-1) and 43746.63462 cm(-1) heights located at RRCB=2.100 Å and 1.922 Å, respectively, both without any vibrational states. While, the B2Σ state of OBr2- and the A2Σ state of OCl2- are metastable with PECs having wells deep enough to suite several bound states, with minima located at Re=1.773 Å and 1.6430 Å, and Coulomb barriers of 191437.45813 cm(-1) and 180550.70294 cm(-1) heights located at RRCB=2.658 Å and 2.4480 Å, with De=1.26470 eV and 1.60837 eV, respectively. The OBr- and OCl- singly charged anions are stable in their ground states. Based on the calculated Frank-Condon factors, it is concluded that metastable excited state OBr2- and OCl2- dianions and ground state OBr- and OCl- singly charged anions can be formed via electron capture processes.
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Affiliation(s)
- Zeinab Noorisafa
- Department of Chemistry, University of Isfahan, Isfahan, 81746 73441, Islamic Republic of Iran
| | - Hassan Sabzyan
- Department of Chemistry, University of Isfahan, Isfahan, 81746 73441, Islamic Republic of Iran.
| | - Elham Keshavarz
- Department of Chemistry, University of Isfahan, Isfahan, 81746 73441, Islamic Republic of Iran
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de Oliveira Filho AGS, Ornellas FR. Electronic structure and spectra of a new molecular species: SI. A theoretical contribution. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2011.04.099] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Ponomarev D, Takhistov V, Slayden S, Liebman J. Thermochemistry of organic, elementorganic and inorganic species. Part XX. Enthalpies of formation for free radicals of main group elements’ halogenides. J Mol Struct 2008. [DOI: 10.1016/j.molstruc.2007.05.038] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Dillon TJ, Blitz MA, Heard DE. Determination of the Rate Coefficients for the Reactions IO + NO2 + M (Air) → IONO2 + M and O(3P) + NO2 → O2 + NO Using Laser-Induced Fluorescence Spectroscopy. J Phys Chem A 2006; 110:6995-7002. [PMID: 16722714 DOI: 10.1021/jp057048p] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Laser-induced fluorescence spectroscopy via excitation of the A2pi(3/2) <-- X2pi(3/2) (2,0) band at 445 nm was used to monitor IO in the presence of NO2 following its generation in the reactions O(3P) + CF3I and O(3P) + I2. Both photolysis of O3 (248 nm) and NO2 (351 nm) were used to initiate the production of IO. The rate coefficients for the thermolecular reaction IO + NO2 + M --> IONO2 + M were measured in air, N2, and O2 over the range P = 18-760 Torr, covering typical tropospheric conditions, and were found to be in the falloff region. No dependence of k1 upon bath gas identity was observed, and in general, the results are in good agreement with recent determinations. Using a Troe broadening factor of F(B) = 0.4, the falloff parameters k0(1) = (9.5 +/- 1.6) x 10(-31) cm6 molecule(-2) s(-1) and k(infinity)(1) = (1.7 +/- 0.3) x 10(-11) cm3 molecule(-1) s(-1) were determined at 294 K. The temporal profile of IO at elevated temperatures was used to investigate the thermal stability of the product, IONO2, but no evidence was observed for the regeneration of IO, consistent with recent calculations for the IO-NO2 bond strength being approximately 100 kJ mol(-1). Previous modeling studies of iodine chemistry in the marine boundary layer that utilize values of k1 measured in N2 are hence validated by these results conducted in air. The rate coefficient for the reaction O(3P) + NO2 --> O2 + NO at 294 K and in 100 Torr of air was determined to be k2 = (9.3 +/- 0.9) x 10(-12) cm3 molecule(-1) s(-1), in good agreement with recommended values. All uncertainties are quoted at the 95% confidence limit.
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Affiliation(s)
- Terry J Dillon
- Max Planck Institute for Chemistry, Postfach 3060, 55020 Mainz, Germany
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Kim H, Dooley KS, Johnson ER, North SW. Photodissociation of the BrO radical using velocity map ion imaging: Excited state dynamics and accurate D00(BrO) evaluation. J Chem Phys 2006; 124:134304. [PMID: 16613452 DOI: 10.1063/1.2173265] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We have studied the photodissociation dynamics of expansion-cooled BrO radical both above (278-281.5 nm) and below (355 nm) the A (2)Pi(3/2) state threshold using velocity map ion imaging. A recently developed late-mixing flash pyrolytic reactor source was utilized to generate an intense BrO radical molecular beam. The relative electronic product branching ratios at 355 nm and from 278 to 281.5 nm were determined. We have investigated the excited state dynamics based on both the product branching and the photofragment angular distributions. We find that above the O((1)D(2)) threshold the contribution of the direct excitation to states other than the A (2)Pi(3/2) state and the role of curve crossing is considerably larger in BrO compared to that observed for ClO, in agreement with recent theoretical studies. The measurement of low velocity photofragments resulting from photodissociation just above the O((1)D(2)) threshold provides an accurate and direct determination of the A (2)Pi(3/2) state dissociation threshold of 35418+/-35 cm(-1), leading to a ground state bond energy of D(0)(0)(BrO)=55.9+/-0.1 kcal/mol.
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Affiliation(s)
- Hahkjoon Kim
- Department of Chemistry, Texas A&M University, College Station, Texas 77842, USA
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Papayannis DK, Kosmas AM. The conformational potential energy surface of IOONO and the isomerization and decomposition processes. Chem Phys 2005. [DOI: 10.1016/j.chemphys.2005.04.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Bedjanian Y, Poulet G. Kinetics of Halogen Oxide Radicals in the Stratosphere. Chem Rev 2003; 103:4639-56. [PMID: 14664627 DOI: 10.1021/cr0205210] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yuri Bedjanian
- Laboratoire de Combustion et Systèmes Réactifs, CNRS, 45071 Orléans Cedex 2, France.
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Zou P, Kim H, North SW. The ultraviolet photodissociation of jet-cooled ClO and BrO radicals. J Chem Phys 2002. [DOI: 10.1063/1.1448282] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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A quantum mechanical study of the structure, vibrational spectra and relative energetics of XOOI, XIO2 and XOIO (X=Cl, Br, I) isomers. Chem Phys Lett 2001. [DOI: 10.1016/s0009-2614(01)01160-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Bloss WJ, Rowley DM, Cox RA, Jones RL. Kinetics and Products of the IO Self-Reaction. J Phys Chem A 2001. [DOI: 10.1021/jp0044936] [Citation(s) in RCA: 91] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- William J. Bloss
- Centre for Atmospheric Science, University Chemical Laboratories, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K
| | - David M. Rowley
- Centre for Atmospheric Science, University Chemical Laboratories, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K
| | - R. Anthony Cox
- Centre for Atmospheric Science, University Chemical Laboratories, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K
| | - Roderic L. Jones
- Centre for Atmospheric Science, University Chemical Laboratories, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K
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Rowley DM, Bloss WJ, Cox RA, Jones RL. Kinetics and Products of the IO + BrO Reaction. J Phys Chem A 2001. [DOI: 10.1021/jp004494y] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- David M. Rowley
- Centre for Atmospheric Science, University Chemical Laboratories, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K
| | - William J. Bloss
- Centre for Atmospheric Science, University Chemical Laboratories, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K
| | - R. Anthony Cox
- Centre for Atmospheric Science, University Chemical Laboratories, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K
| | - Roderic L. Jones
- Centre for Atmospheric Science, University Chemical Laboratories, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K
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Chen M, Wang X, Zhang L, Qin Q, Zheng Q. Photomobility of O(1D) atom in solid Ar and its reaction with CF3I. Chem Phys 2000. [DOI: 10.1016/s0301-0104(00)00065-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Roszak S, Krauss M, Alekseyev AB, Liebermann HP, Buenker RJ. Spin−Orbit Configuration Interaction Calculation of the Potential Energy Curves of Iodine Oxide. J Phys Chem A 2000. [DOI: 10.1021/jp994002l] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- S. Roszak
- Institute of Physical and Theoretical Chemistry, Wroclaw University of Technology, Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland; Fachbereich 9Theoretische Chemie, Bergische Universität-Gesamthochschule Wuppertal, Gaussstr. 20, D-42097 Wuppertal, Germany; and Center for Advanced Research in Biotechnology, NIST, 9600 Gudelsky Drive, Rockville, Maryland 20850
| | - M. Krauss
- Institute of Physical and Theoretical Chemistry, Wroclaw University of Technology, Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland; Fachbereich 9Theoretische Chemie, Bergische Universität-Gesamthochschule Wuppertal, Gaussstr. 20, D-42097 Wuppertal, Germany; and Center for Advanced Research in Biotechnology, NIST, 9600 Gudelsky Drive, Rockville, Maryland 20850
| | - A. B. Alekseyev
- Institute of Physical and Theoretical Chemistry, Wroclaw University of Technology, Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland; Fachbereich 9Theoretische Chemie, Bergische Universität-Gesamthochschule Wuppertal, Gaussstr. 20, D-42097 Wuppertal, Germany; and Center for Advanced Research in Biotechnology, NIST, 9600 Gudelsky Drive, Rockville, Maryland 20850
| | - H.-P. Liebermann
- Institute of Physical and Theoretical Chemistry, Wroclaw University of Technology, Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland; Fachbereich 9Theoretische Chemie, Bergische Universität-Gesamthochschule Wuppertal, Gaussstr. 20, D-42097 Wuppertal, Germany; and Center for Advanced Research in Biotechnology, NIST, 9600 Gudelsky Drive, Rockville, Maryland 20850
| | - R. J. Buenker
- Institute of Physical and Theoretical Chemistry, Wroclaw University of Technology, Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland; Fachbereich 9Theoretische Chemie, Bergische Universität-Gesamthochschule Wuppertal, Gaussstr. 20, D-42097 Wuppertal, Germany; and Center for Advanced Research in Biotechnology, NIST, 9600 Gudelsky Drive, Rockville, Maryland 20850
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Wilmouth DM, Hanisco TF, Donahue NM, Anderson JG. Fourier Transform Ultraviolet Spectroscopy of the A 2Π3/2 ← X 2Π3/2 Transition of BrO. J Phys Chem A 1999. [DOI: 10.1021/jp991651o] [Citation(s) in RCA: 158] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- David M. Wilmouth
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
| | - Thomas F. Hanisco
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
| | - Neil M. Donahue
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
| | - James G. Anderson
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
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Atkinson DB, Hudgens JW, Orr-Ewing AJ. Kinetic Studies of the Reactions of IO Radicals Determined by Cavity Ring-Down Spectroscopy. J Phys Chem A 1999. [DOI: 10.1021/jp9902497] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Dean B. Atkinson
- Physical and Chemical Properties Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899
| | - Jeffrey W. Hudgens
- Physical and Chemical Properties Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899
| | - Andrew J. Orr-Ewing
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, U.K
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Gilles MK, Burkholder JB, Ravishankara AR. Rate coefficients for the reaction of OH with Cl2, Br2, and I2 from 235 to 354 K. INT J CHEM KINET 1999. [DOI: 10.1002/(sici)1097-4601(1999)31:6<417::aid-kin3>3.0.co;2-a] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Affiliation(s)
- Yuri Bedjanian
- Laboratoire de Combustion et Systèmes Réactifs, CNRS and Université d'Orléans, 45071 Orléans Cedex 2, France
| | - Georges Le Bras
- Laboratoire de Combustion et Systèmes Réactifs, CNRS and Université d'Orléans, 45071 Orléans Cedex 2, France
| | - Gilles Poulet
- Laboratoire de Combustion et Systèmes Réactifs, CNRS and Université d'Orléans, 45071 Orléans Cedex 2, France
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Delmdahl RF, Gericke KH. State-resolved two-photon laser induced fluorescence detection of BrO. J Chem Phys 1998. [DOI: 10.1063/1.476785] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Workman MA, Francisco JS. Molecular structure and energetics of BrOx radicals (where x=1, 2, and 3). Chem Phys Lett 1998. [DOI: 10.1016/s0009-2614(98)00748-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Loomis RA, Leone SR, Gilles MK. Novel five-membered ring intermediates in gas phase reactions. RESEARCH ON CHEMICAL INTERMEDIATES 1998. [DOI: 10.1163/156856798x00384] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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