1
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Aroule O, Jarraya M, Zins EL, Hochlaf M. Probing microhydration-induced effects on carbonyl compounds. Phys Chem Chem Phys 2024. [PMID: 39129488 DOI: 10.1039/d4cp01035c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/13/2024]
Abstract
Characterizing the microhydration of organic molecules is a crucial step in understanding many phenomena relevant to atmospheric, biological, and industrial applications. However, its precise experimental and theoretical description remains a challenge. For four organic solutes containing a CO bond, and included in the recent HyDRA challenge [T. L. Fischer, M. Bödecker, A. Zehnacker-Rentien, R. A. Mata and M. A. Suhm, Phys. Chem. Chem. Phys., 2022, 24, 11442-11454.], we performed a detailed study of different monohydrate isomers and their properties; these were cyclooctanone (CON), 1,3-dimethyl-2-imidazolidinon (DMI), methyl lactate (MLA), and 2,2,2-trifluoroacetophenone (TPH) molecules. As reported in the literature, the O-H elongation shift of the water molecule appears to be a good candidate for characterizing complexation-induced effects. We also show that CO elongation shift and UV-vis spectroscopy can be successfully used for these purposes. Besides, we present a comparative analysis of the strengths of non-covalent interactions within these monohydrated complexes based on interpretative tools of quantum chemistry, including topological analysis of electron density (ρ), topological analysis of electron pairing function, and analysis of the core-valence bifurcation index (CVBI), which exhibits a close linear dependency on ρ. Accordingly, a classification of intermolecular water-solute interactions is proposed.
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Affiliation(s)
- Olivier Aroule
- MONARIS UMR 8233 CNRS, Sorbonne Université, 4 place Jussieu, 75252 Paris Cedex 5, France.
| | - Mahmoud Jarraya
- Université Gustave Eiffel, COSYS/IMSE, 5 Bd Descartes 77454, Champs sur Marne, France.
| | - Emilie-Laure Zins
- MONARIS UMR 8233 CNRS, Sorbonne Université, 4 place Jussieu, 75252 Paris Cedex 5, France.
| | - Majdi Hochlaf
- Université Gustave Eiffel, COSYS/IMSE, 5 Bd Descartes 77454, Champs sur Marne, France.
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2
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Halpern AM. Composition of the Water Dimer and the Heterodimers of Water with N 2 and O 2 in Earth's Atmosphere. J Phys Chem A 2024; 128:4787-4794. [PMID: 38836559 DOI: 10.1021/acs.jpca.4c01843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
The mole fractions χ and number concentrations n of the water dimer and the heterodimers H2O-N2 and H2O-O2 in Earth's atmosphere are reported up to 20 km. The water dimer data is obtained from published values of the equilibrium constant based on the water equation of state. The mixed equilibrium constants for the heterodimers are obtained from the respective second virial coefficients using an approach introduced by Stogryn and Hirschfelder that extracts the components pertaining to pairwise interactions producing bound and metastable dimers. From these calculations, χ and n for the water dimer and the (H2O)(N2) and (H2O)(O2) heterodimers at standard sea level are 1.79(6) × 10-5, 4.77(12) × 10-5 and 9.90(5) × 10-6 and 4.55(15) × 1014, 1.23(3) × 1016 and 2.56(1) × 1015, respectively. Analytical expressions are provided for these quantities for altitudes between 0-20 km and temperatures from 200-300 K. Sea level values of χ and n are given for two specific locations.
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Affiliation(s)
- Arthur M Halpern
- Department of Chemistry and Physics, Indiana State University, Terre Haute, Indiana 47809 ,United States
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3
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Mondal S. Charge-Shifted Weak Noncovalent Interactions in the Atmospherically Important OCS Microhydrates. J Phys Chem A 2023; 127:3293-3304. [PMID: 36943720 DOI: 10.1021/acs.jpca.2c07670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
Stratospheric aerosol, mainly comprising microhydrated carbonyl sulfide (OCS), is among the primary drivers of climate change. In this study, we investigate the effect of microhydration on the structure, energetics, and vibrational properties of the neutral OCS molecule using ab initio calculation, molecular electrostatic potential (MESP), topological analyses of electron density, and natural bond orbital (NBO) analyses. The complexation energy increases with the cluster size, and the first solvation shell of OCS consists of four water molecules that interact with the OCS moiety preferentially through SOCS···OW, OOCS···OW, and COCS···OW type of weak noncovalent interaction instead of the typical OOCS···H-OW and SOCS···H-OW H-bonds. These noncovalent interactions originate due to the electron shift from the water oxygen lone pair to the antibonding orbital of C═S [BD*(C═S)], sometimes via BD*(C═O), which substantially perturbs the bending mode of surrounding water molecules. The present study thus unravels the underlying relationship between the OCS atmospheric hydrolysis and the charge-shifted noncovalent interactions.
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Affiliation(s)
- Saptarsi Mondal
- School of Chemical Sciences, Indian Association for the Cultivation of Sciences, Kolkata 700032, India
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4
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Hockey EK, Vlahos K, Howard T, Palko J, Dodson LG. Weakly Bound Complex Formation between HCN and CH 3Cl: A Matrix-Isolation and Computational Study. J Phys Chem A 2022; 126:3110-3123. [PMID: 35583384 DOI: 10.1021/acs.jpca.2c00716] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The matrix-isolated infrared spectrum of a hydrogen cyanide-methyl chloride complex was investigated in a solid argon matrix. HCN and CH3Cl were co-condensed onto a substrate held at 10 K with an excess of argon gas, and the infrared spectrum was measured using Fourier-transform infrared spectroscopy. Quantum chemical geometry optimization, harmonic frequency, and natural bonding orbital calculations indicate stabilized hydrogen- and halogen-bonded structures. The two resulting weakly bound complexes are both composed of one CH3Cl molecule bound to a (HCN)3 subunit, where the three HCN molecules are bound head-to-tail in a ring formation. Our study suggests that─in the presence of CH3Cl─the formation of (HCN)3 is promoted through complexation. Since HCN aggregates are an important precursor to prebiotic monomers (amino acids and nucleobases) and other life-bearing polymers, this study has astrophysical implications toward the search for life in space.
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Affiliation(s)
- Emily K Hockey
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Korina Vlahos
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Thomas Howard
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Jessica Palko
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Leah G Dodson
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
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5
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Soulard P, Tremblay B. Vibrational study of the CS2H2O, CS2-(H2O)2, and (CS2)2H2O complexes isolated in solid neon. Highlighting the existence of two isomers for CS2H2O. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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6
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Sandhiya L, Senthilkumar K. Unimolecular decomposition of acetyl peroxy radical: a potential source of tropospheric ketene. Phys Chem Chem Phys 2020; 22:26819-26827. [PMID: 33231595 DOI: 10.1039/d0cp04590j] [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
The unimolecular decomposition of acetyl peroxy radicals followed by subsequent nitration is known to lead to the formation of peroxy acetyl nitrate (PAN) in the troposphere. Using high level quantum chemical calculations, we show that the acetyl peroxy radical is a precursor in the formation of tropospheric ketene. The results show that the presence of a single or double water molecule(s) as a catalyst does not influence the decomposition reaction directly to form ketene and hydroperoxy radicals. The electronic excitation of the reactive and product complexes occurs in the wavelength range of ∼1400 nm, suggesting that the complexes undergo photoexcitation in the near IR region. The results ascertain that the dissociation of acetyl peroxy radicals into ketene and hydroperoxy radicals occurs more likely through the excitation route and the corresponding excitation wavelength reveals that the reactions are red-light driven. Three different product complexes, ketene·HO2, ketene·H2O·HO2 and ketene·(H2O)2·HO2, are formed from the reaction. The direct dynamics simulations show that the product complexes are more stable and possess a long lifetime. The calculated temperature dependent equilibrium constant of the product complexes reveals that their atmospheric abundances decrease with increasing altitudes.
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Affiliation(s)
- L Sandhiya
- CSIR - National Institute of Science, Technology and Development Studies, New Delhi-110012, India.
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7
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Messaoudi B. Quantum chemical study of the reaction of trichloroethylene with O(
3
P). INT J CHEM KINET 2020. [DOI: 10.1002/kin.21372] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Boulanouar Messaoudi
- Laboratoire de Thermodynamique Appliquée et Modélisation MoléculaireDépartement de Chimie, Faculté des SciencesUniversité Abou Bekr Belkaid Tlemcen Algeria
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8
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Stein T, Jose J. Molecular Formation upon Ionization of van der Waals Clusters and Implication to Astrochemistry. Isr J Chem 2020. [DOI: 10.1002/ijch.201900127] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Tamar Stein
- Fritz Haber Research Center for Molecular Dynamics The Hebrew University of Jerusalem Jerusalem 9190401 Israel
| | - Jeeno Jose
- Fritz Haber Research Center for Molecular Dynamics The Hebrew University of Jerusalem Jerusalem 9190401 Israel
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9
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Affiliation(s)
- C. J. Smith
- Department of Chemistry, University of Minnesota, 207 Pleasant Street, SE, Minneapolis, Minnesota 55455, United States
| | - Anna K. Huff
- Department of Chemistry, University of Minnesota, 207 Pleasant Street, SE, Minneapolis, Minnesota 55455, United States
| | - Rebecca M. Ward
- Department of Chemistry, University of Minnesota, 207 Pleasant Street, SE, Minneapolis, Minnesota 55455, United States
| | - Kenneth R. Leopold
- Department of Chemistry, University of Minnesota, 207 Pleasant Street, SE, Minneapolis, Minnesota 55455, United States
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10
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Soulard P, Tremblay B. Vibrational study in neon matrix of H2S-H2O, H2S-(H2O)2, and (H2S)2-H2O complexes. Identification of the two isomers: HOH-SH2 (H2O proton donor) and HSH-OH2 (H2S proton donor). J Chem Phys 2019; 151:124308. [DOI: 10.1063/1.5120572] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- P. Soulard
- Sorbonne Université, CNRS, UMR 8233, MONARIS, Case Courrier 49, 4 Place Jussieu, F-75005 Paris, France
| | - B. Tremblay
- Sorbonne Université, CNRS, UMR 8233, MONARIS, Case Courrier 49, 4 Place Jussieu, F-75005 Paris, France
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11
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Tsona NT, Tang S, Du L. Impact of water on the BrO + HO 2 gas-phase reaction: mechanism, kinetics and products. Phys Chem Chem Phys 2019; 21:20296-20307. [PMID: 31495844 DOI: 10.1039/c9cp03612a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The BrO + HO2 reaction, which participates in the cycle of ozone removal via BrOH formation, was explored both in the absence and in the presence of water using ab initio calculations. Two main sets of products, (i) HBr + O3 and (ii) BrOH + O2, are formed regardless of the presence of water, following a hydrogen abstraction mechanism. The HBr + O3 products are formed from the intermediate BrOOOH adduct, whereas BrOH + O2 are formed either from the intermediate OBrOOH adduct or via a barrierless hydrogen transfer from HO2 to BrO. Owing to the formation of molecular oxygen that can bear different spin configurations, the formation of BrOH + O2 products was examined both on the singlet and the triplet surfaces. Under relevant atmospheric temperatures and pressure, the formation of products (i) is energetically and kinetically less favorable than that of products (ii). The rate coefficient at 298 K for the HBr + O3 formation was determined to be 2.00 × 10-20 cm3 molecule-1 s-1, and found to decrease by 1-2 orders of magnitude when one or both reactants are clustered with water. For the formation of BrOH + O2, a rate coefficient of 2.21 × 10-11 cm3 molecule-1 s-1 is determined on both singlet and triplet surfaces in the absence of water. Though this rate coefficient slightly decreases for the hydrated reactions, the fractions of the reactants that are effectively complexed with water are not high enough to shift the overall BrOH + O2 formation rate. The current study further indicates that humidity plays a negligible role in ozone removal via the BrO + HO2 reaction.
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Affiliation(s)
- Narcisse T Tsona
- School of Life Science, Shandong University, Binhai Road 72, Qingdao 266237, China
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12
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Kjaersgaard A, Lane JR, Kjaergaard HG. Room Temperature Gibbs Energies of Hydrogen-Bonded Alcohol Dimethylselenide Complexes. J Phys Chem A 2019; 123:8427-8434. [DOI: 10.1021/acs.jpca.9b06855] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alexander Kjaersgaard
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
| | - Joseph R. Lane
- School of Science, University of Waikato, Private Bag 3105, Hamilton 3240, New Zealand
| | - Henrik G. Kjaergaard
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
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13
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Xu L, Tsona NT, Tang S, Li J, Du L. Role of (H 2O) n ( n = 1-2) in the Gas-Phase Reaction of Ethanol with Hydroxyl Radical: Mechanism, Kinetics, and Products. ACS OMEGA 2019; 4:5805-5817. [PMID: 31459732 PMCID: PMC6648320 DOI: 10.1021/acsomega.9b00145] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 03/14/2019] [Indexed: 06/10/2023]
Abstract
The effect of water on the hydrogen abstraction mechanism and product branching ratio of CH3CH2OH + •OH reaction has been investigated at the CCSD(T)/aug-cc-pVTZ//BH&HLYP/aug-cc-pVTZ level of theory, coupled with the reaction kinetics calculations, implying the harmonic transition-state theory. Depending on the hydrogen sites in CH3CH2OH, the bared reaction proceeds through three elementary paths, producing CH2CH2OH, CH3CH2O, and CH3CHOH and releasing a water molecule. Thermodynamic and kinetic results indicate that the formation of CH3CHOH is favored over the temperature range of 216.7-425.0 K. With the inclusion of water, the reaction becomes quite complex, yielding five paths initiated by three channels. The products do not change compared with the bared reaction, but the preference for forming CH3CHOH drops by up to 2%. In the absence of water, the room temperature rate coefficients for the formation of CH2CH2OH, CH3CH2O, and CH3CHOH are computed to be 5.2 × 10-13, 8.6 × 10-14, and 9.0 × 10-11 cm3 molecule-1 s-1, respectively. The effective rate coefficients of corresponding monohydrated and dihydrated reactions are 3-5 and 6-8 orders of magnitude lower than those of the unhydrated reaction, indicating that water has a decelerating effect on the studied reaction. Overall, the characterized effects of water on the thermodynamics, kinetics, and products of the CH3CH2OH + •OH reaction will facilitate the understanding of the fate of ethanol and secondary pollutants derived from it.
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Affiliation(s)
- Li Xu
- Environment
Research Institute and School of Life Science, Shandong University, Qingdao 266237, China
| | - Narcisse T. Tsona
- Environment
Research Institute and School of Life Science, Shandong University, Qingdao 266237, China
| | - Shanshan Tang
- Environment
Research Institute and School of Life Science, Shandong University, Qingdao 266237, China
| | - Junyao Li
- Environment
Research Institute and School of Life Science, Shandong University, Qingdao 266237, China
| | - Lin Du
- Environment
Research Institute and School of Life Science, Shandong University, Qingdao 266237, China
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14
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Lemmens AK, Gruet S, Steber AL, Antony J, Grimme S, Schnell M, Rijs AM. Far-IR and UV spectral signatures of controlled complexation and microhydration of the polycyclic aromatic hydrocarbon acenaphthene. Phys Chem Chem Phys 2019; 21:3414-3422. [DOI: 10.1039/c8cp04480e] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
UV and IR spectroscopic study of the controlled complexation and microhydration of a polycyclic aromatic hydrocarbon under isolated conditions using free electron laser FELIX.
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Affiliation(s)
- Alexander K. Lemmens
- Radboud University
- Institute for Molecules and Materials
- FELIX Laboratory
- 6525 ED Nijmegen
- The Netherlands
| | - Sébastien Gruet
- Deutsches Elektronen-Synchrotron
- D-22607 Hamburg
- Germany
- Institut für Physikalische Chemie
- Christian-Albrechts-Universität zu Kiel
| | - Amanda L. Steber
- Deutsches Elektronen-Synchrotron
- D-22607 Hamburg
- Germany
- Institut für Physikalische Chemie
- Christian-Albrechts-Universität zu Kiel
| | - Jens Antony
- Mulliken Center for Theoretical Chemistry
- University of Bonn
- D-53115 Bonn
- Germany
| | - Stefan Grimme
- Mulliken Center for Theoretical Chemistry
- University of Bonn
- D-53115 Bonn
- Germany
| | - Melanie Schnell
- Deutsches Elektronen-Synchrotron
- D-22607 Hamburg
- Germany
- Institut für Physikalische Chemie
- Christian-Albrechts-Universität zu Kiel
| | - Anouk M. Rijs
- Radboud University
- Institute for Molecules and Materials
- FELIX Laboratory
- 6525 ED Nijmegen
- The Netherlands
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15
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Møller KH, Kjaersgaard A, Hansen AS, Du L, Kjaergaard HG. Hybridization of Nitrogen Determines Hydrogen-Bond Acceptor Strength: Gas-Phase Comparison of Redshifts and Equilibrium Constants. J Phys Chem A 2018; 122:3899-3908. [DOI: 10.1021/acs.jpca.8b00541] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kristian H. Møller
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
| | - Alexander Kjaersgaard
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
| | - Anne S. Hansen
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
| | - Lin Du
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
| | - Henrik G. Kjaergaard
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
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16
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Jiang X, Tsona NT, Tang S, Du L. Hydrogen bond docking preference in furans: OH⋯π vs. OH⋯O. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 191:155-164. [PMID: 29028507 DOI: 10.1016/j.saa.2017.10.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 09/23/2017] [Accepted: 10/01/2017] [Indexed: 05/15/2023]
Abstract
The docking sites of hydrogen bonds in complexes formed between 2,2,2-trifluoroethanol (TFE), furan (Fu), and 2-methyl furan (MF) have been investigated. Using density functional theory (DFT) calculations, gas phase and matrix isolation FTIR spectroscopies, the strengths of OH⋯O and OH⋯π hydrogen bonds in the complexes were compared to find the docking preference. Calculations suggest that the hydrogen bond donor, TFE, is more likely to dock onto the oxygen atom of the aromatic furans ring, and consequently, the OH⋯O type hydrogen bond is relatively stronger than the OH⋯π type. The FTIR spectrum in the OH-stretching fundamental range obtained at room temperatures has been compared with that obtained at extremely low temperatures in the matrix. The fundamental and the red shifts of OH-stretching vibrations were observed in both FTIR spectra, confirming the formation of hydrogen bonded complexes. By assessing the ability of furan and MF to participate in the formation of OH⋯O hydrogen bond, the effect of ring methylation has been highlighted. From the calculated geometric and thermodynamic parameters as well as the frequency shift of the OH-stretching vibrations in complexes, TFE-MF is found to be more stable than TFE-Fu, which suggests that the strength of the OH⋯O hydrogen bond in TFE-MF originates from the high activity of the furan molecule caused by the methylation of the aromatic ring. The present study furthers the knowledge of docking preference in heteroaromatic molecules and is helpful to understand the nature of intermolecular interactions between hydrogen bond donors and acceptors, including both electron-deficient atoms and π cloud.
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Affiliation(s)
- Xiaotong Jiang
- Environment Research Institute, Shandong University, Shanda South Road 27, 250100, Shandong, China
| | - Narcisse T Tsona
- Environment Research Institute, Shandong University, Shanda South Road 27, 250100, Shandong, China
| | - Shanshan Tang
- Environment Research Institute, Shandong University, Shanda South Road 27, 250100, Shandong, China
| | - Lin Du
- Environment Research Institute, Shandong University, Shanda South Road 27, 250100, Shandong, China.
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17
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Jara-Toro RA, Hernández FJ, Garavagno MDLA, Taccone RA, Pino GA. Water catalysis of the reaction between hydroxyl radicals and linear saturated alcohols (ethanol and n-propanol) at 294 K. Phys Chem Chem Phys 2018; 20:27885-27896. [DOI: 10.1039/c8cp05411h] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Water accelerates the title reaction by lowering the energy barrier and increasing the dipole moments of the reactants.
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Affiliation(s)
- Rafael A. Jara-Toro
- INFIQC (CONICET – UNC) – Ciudad Universitaria
- X5000HUA Córdoba
- Argentina
- Dpto. de Fisicoquímica – Facultad de Ciencias Químicas – Universidad Nacional de Córdoba – Ciudad Universitaria
- X5000HUA Córdoba
| | - Federico J. Hernández
- INFIQC (CONICET – UNC) – Ciudad Universitaria
- X5000HUA Córdoba
- Argentina
- Dpto. de Fisicoquímica – Facultad de Ciencias Químicas – Universidad Nacional de Córdoba – Ciudad Universitaria
- X5000HUA Córdoba
| | - María de los A. Garavagno
- INFIQC (CONICET – UNC) – Ciudad Universitaria
- X5000HUA Córdoba
- Argentina
- Dpto. de Fisicoquímica – Facultad de Ciencias Químicas – Universidad Nacional de Córdoba – Ciudad Universitaria
- X5000HUA Córdoba
| | - Raúl A. Taccone
- INFIQC (CONICET – UNC) – Ciudad Universitaria
- X5000HUA Córdoba
- Argentina
- Dpto. de Fisicoquímica – Facultad de Ciencias Químicas – Universidad Nacional de Córdoba – Ciudad Universitaria
- X5000HUA Córdoba
| | - Gustavo A. Pino
- INFIQC (CONICET – UNC) – Ciudad Universitaria
- X5000HUA Córdoba
- Argentina
- Dpto. de Fisicoquímica – Facultad de Ciencias Químicas – Universidad Nacional de Córdoba – Ciudad Universitaria
- X5000HUA Córdoba
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18
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Huff AK, Mackenzie RB, Smith C, Leopold KR. Facile Formation of Acetic Sulfuric Anhydride: Microwave Spectrum, Internal Rotation, and Theoretical Calculations. J Phys Chem A 2017; 121:5659-5664. [DOI: 10.1021/acs.jpca.7b05105] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Anna K. Huff
- Department of Chemistry, University of Minnesota, 207 Pleasant Street, SE, Minneapolis, Minnesota 55455, United States
| | - Rebecca B. Mackenzie
- Department of Chemistry, University of Minnesota, 207 Pleasant Street, SE, Minneapolis, Minnesota 55455, United States
| | - C.J. Smith
- Department of Chemistry, University of Minnesota, 207 Pleasant Street, SE, Minneapolis, Minnesota 55455, United States
| | - Kenneth R. Leopold
- Department of Chemistry, University of Minnesota, 207 Pleasant Street, SE, Minneapolis, Minnesota 55455, United States
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19
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Jiang X, Liu S, Tsona NT, Tang S, Ding L, Zhao H, Du L. Matrix isolation FTIR study of hydrogen-bonded complexes of methanol with heterocyclic organic compounds. RSC Adv 2017. [DOI: 10.1039/c6ra26076d] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hydrogen bonded complexes of heterocyclic compounds with methanol were studied using matrix isolation FTIR spectroscopy and theoretical calculations.
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Affiliation(s)
| | - Shijie Liu
- Environment Research Institute
- Shandong University
- China
| | | | - Shanshan Tang
- Environment Research Institute
- Shandong University
- China
| | - Lei Ding
- Environment Research Institute
- Shandong University
- China
| | - Hailiang Zhao
- Environment Research Institute
- Shandong University
- China
| | - Lin Du
- Environment Research Institute
- Shandong University
- China
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20
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Krupa J, Wierzejewska M. New aspects of UV photolysis of hydrogen peroxide. Nitrogen matrix isolation FTIR and theoretical studies. J Photochem Photobiol A Chem 2016. [DOI: 10.1016/j.jphotochem.2016.07.033] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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21
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Salmon SR, de Lange KM, Lane JR. Structure and Abundance of Nitrous Oxide Complexes in Earth's Atmosphere. J Phys Chem A 2016; 120:2096-105. [PMID: 26983553 DOI: 10.1021/acs.jpca.5b11853] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We have investigated the lowest energy structures and binding energies of a series of atmospherically relevant nitrous oxide (N2O) complexes using explicitly correlated coupled cluster theory. Specifically, we have considered complexes with nitrogen (N2-N2O), oxygen (O2-N2O), argon (Ar-N2O), and water (H2O-N2O). We have calculated rotational constants and harmonic vibrational frequencies for the complexes and the constituent monomers. Statistical mechanics was used to determine the thermodynamic parameters for complex formation as a function of temperature and pressure. These results, in combination with relevant atmospheric data, were used to estimate the abundance of N2O complexes in Earth's atmosphere as a function of altitude. We find that the abundance of N2O complexes in Earth's atmosphere is small but non-negligible, and we suggest that N2O complexes may contribute to absorption of terrestrial radiation and be relevant for understanding the atmospheric fate of N2O.
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Affiliation(s)
- Steven R Salmon
- School of Science, Faculty of Science and Engineering, University of Waikato , Private Bag 3105, Hamilton, New Zealand
| | - Katrina M de Lange
- School of Science, Faculty of Science and Engineering, University of Waikato , Private Bag 3105, Hamilton, New Zealand
| | - Joseph R Lane
- School of Science, Faculty of Science and Engineering, University of Waikato , Private Bag 3105, Hamilton, New Zealand
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22
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Hansen AS, Maroun Z, Mackeprang K, Frandsen BN, Kjaergaard HG. Accurate thermodynamic properties of gas phase hydrogen bonded complexes. Phys Chem Chem Phys 2016; 18:23831-9. [DOI: 10.1039/c6cp04648g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The increase in temperature causes a decrease in equilibrium constant, which makes accurate determination of the enthalpy of complex formation possible.
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Affiliation(s)
- Anne S. Hansen
- Department of Chemistry
- University of Copenhagen
- DK-2100 Copenhagen Ø
- Denmark
| | - Zeina Maroun
- Department of Chemistry
- University of Copenhagen
- DK-2100 Copenhagen Ø
- Denmark
| | - Kasper Mackeprang
- Department of Chemistry
- University of Copenhagen
- DK-2100 Copenhagen Ø
- Denmark
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23
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Anchoring the potential energy surface of an important atmospheric van der Waals dimer, the H2O⋯O2 complex. COMPUT THEOR CHEM 2015. [DOI: 10.1016/j.comptc.2015.08.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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24
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Schnitzler EG, Jäger W. The benzoic acid-water complex: a potential atmospheric nucleation precursor studied using microwave spectroscopy and ab initio calculations. Phys Chem Chem Phys 2014; 16:2305-14. [PMID: 24366483 DOI: 10.1039/c3cp54486a] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The pure rotational, high-resolution spectrum of the benzoic acid-water complex was measured in the range of 4-14 GHz, using a cavity-based molecular beam Fourier-transform microwave spectrometer. In all, 40 a-type transitions and 2 b-type transitions were measured for benzoic acid-water, and 12 a-type transitions were measured for benzoic acid-D2O. The equilibrium geometry of benzoic acid-water was determined with ab initio calculations, at the B3LYP, M06-2X, and MP2 levels of theory, with the 6-311++G(2df,2pd) basis set. The experimental rotational spectrum is most consistent with the B3LYP-predicted geometry. Narrow splittings were observed in the b-type transitions, and possible tunnelling motions were investigated using the B3LYP/6-311++G(d,p) level of theory. Rotation of the water moiety about the lone electron pair hydrogen-bonded to benzoic acid, across a barrier of 7.0 kJ mol(-1), is the most likely cause for the splitting. Wagging of the unbound hydrogen atom of water is barrier-less, and this large amplitude motion results in the absence of c-type transitions. The interaction and spectroscopic dissociation energies calculated using B3LYP and MP2 are in good agreement, but those calculated using M06-2X indicate excess stabilization, possibly due to dispersive interactions being over-estimated. The equilibrium constant of hydration was calculated by statistical thermodynamics, using ab initio results and the experimental rotational constants. This allowed us to estimate the changes in percentage of hydrated benzoic acid with variations in the altitude, region, and season. Using monitoring data from Calgary, Alberta, and the MP2-predicted dissociation energy, a yearly average of 1% of benzoic acid is expected to be present in the form of benzoic acid-water. However, this percentage depends sensitively on the dissociation energy. For example, when using the M06-2X-predicted dissociation energy, we find it increases to 18%.
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Affiliation(s)
- Elijah G Schnitzler
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta T6G 2G2, Canada.
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25
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Potapov A, Asselin P. High-resolution jet spectroscopy of weakly bound binary complexes involving water. INT REV PHYS CHEM 2014. [DOI: 10.1080/0144235x.2014.932578] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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26
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Tsuge M, Berski S, Räsänen M, Latajka Z, Khriachtchev L. Matrix-isolation and computational study of the HXeY⋯H2O complexes (Y = Cl, Br, and I). J Chem Phys 2014; 140:044323. [DOI: 10.1063/1.4862692] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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27
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Hansen AS, Du L, Kjaergaard HG. The effect of fluorine substitution in alcohol–amine complexes. Phys Chem Chem Phys 2014; 16:22882-91. [DOI: 10.1039/c4cp02500h] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effect of fluorine substitution on the hydrogen bond strength in alcohol–amine molecular complexes was investigated, with a combination of vapour phase infrared and near infrared spectroscopy and theoretical calculations.
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Affiliation(s)
- Anne S. Hansen
- Department of Chemistry
- University of Copenhagen
- Universitetsparken 5
- DK-2100 Copenhagen, Denmark
| | - Lin Du
- Department of Chemistry
- University of Copenhagen
- Universitetsparken 5
- DK-2100 Copenhagen, Denmark
| | - Henrik G. Kjaergaard
- Department of Chemistry
- University of Copenhagen
- Universitetsparken 5
- DK-2100 Copenhagen, Denmark
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28
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Anglada JM, Hoffman GJ, Slipchenko LV, M.Costa M, Ruiz-López MF, Francisco JS. Atmospheric Significance of Water Clusters and Ozone–Water Complexes. J Phys Chem A 2013; 117:10381-96. [DOI: 10.1021/jp407282c] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Josep M. Anglada
- Departament
de Química Biològica i Modelització Molecular, IQAC−CSIC, c/Jordi Girona 18, E-08034 Barcelona, Spain
| | - Gerald J. Hoffman
- Department
of Chemistry, Edinboro University of Pennsylvania, Edinboro, Pennsylvania 16444, United States
| | - Lyudmila V. Slipchenko
- Department
of Chemistry, Purdue University, West Lafayette, Indiana 47907-2084, United States
| | - Marilia M.Costa
- Equipe
de Chimie et Biochimie Théoriques, SRSMC, University of Lorraine, CNRS, BP 70239, 54506 Vandoeuvre-les-Nancy, France
| | - Manuel F. Ruiz-López
- Equipe
de Chimie et Biochimie Théoriques, SRSMC, University of Lorraine, CNRS, BP 70239, 54506 Vandoeuvre-les-Nancy, France
| | - Joseph S. Francisco
- Department
of Chemistry, Purdue University, West Lafayette, Indiana 47907-2084, United States
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29
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30
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31
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Jørgensen S, Jensen C, Kjaergaard HG, Anglada JM. The gas-phase reaction of methane sulfonic acid with the hydroxyl radical without and with water vapor. Phys Chem Chem Phys 2013; 15:5140-50. [PMID: 23450164 DOI: 10.1039/c3cp44034f] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The gas phase reaction between methane sulfonic acid (CH3SO3H; MSA) and the hydroxyl radical (HO), without and with a water molecule, was investigated with DFT-B3LYP and CCSD(T)-F12 methods. For the bare reaction we have found two reaction mechanisms, involving proton coupled electron transfer and hydrogen atom transfer processes that produce CH3SO3 and H2O. We also found a third reaction mechanism involving the double proton transfer process, where the products and reactants are identical. The computed rate constant for the oxidation process is 8.3 × 10(-15) cm(3) s(-1) molecule(-1). CH3SO3H forms two very stable complexes with water with computed binding energies of about 10 kcal mol(-1). The presence of a single water molecule makes the reaction between CH3SO3H and HO much more complex, introducing a new reaction that consists in the interchange of H2O between HO and CH3SO3H. Our kinetic calculations show that 99.5% of the reaction involves this interchange of the water molecule and, consequently, water vapor does not play any role in the oxidation reaction of methane sulfonic acid by the hydroxyl radical.
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Affiliation(s)
- Solvejg Jørgensen
- Department of Chemistry, University of Copenhagen, Copenhagen O, Denmark.
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32
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Du L, Mackeprang K, Kjaergaard HG. Fundamental and overtone vibrational spectroscopy, enthalpy of hydrogen bond formation and equilibrium constant determination of the methanol-dimethylamine complex. Phys Chem Chem Phys 2013; 15:10194-206. [PMID: 23695525 DOI: 10.1039/c3cp50243k] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have measured gas phase vibrational spectra of the bimolecular complex formed between methanol (MeOH) and dimethylamine (DMA) up to about 9800 cm(-1). In addition to the strong fundamental OH-stretching transition we have also detected the weak second overtone NH-stretching transition. The spectra of the complex are obtained by spectral subtraction of the monomer spectra from spectra recorded for the mixture. For comparison, we also measured the fundamental OH-stretching transition in the bimolecular complex between MeOH and trimethylamine (TMA). The enthalpies of hydrogen bond formation (ΔH) for the MeOH-DMA and MeOH-TMA complexes have been determined by measurements of the fundamental OH-stretching transition in the temperature range from 298 to 358 K. The enthalpy of formation is found to be -35.8 ± 3.9 and -38.2 ± 3.3 kJ mol(-1) for MeOH-DMA and MeOH-TMA, respectively, in the 298 to 358 K region. The equilibrium constant (Kp) for the formation of the MeOH-DMA complex has been determined from the measured and calculated transition intensities of the OH-stretching fundamental transition and the NH-stretching second overtone transition. The transition intensities were calculated using an anharmonic oscillator local mode model with dipole moment and potential energy curves calculated using explicitly correlated coupled cluster methods. The equilibrium constant for formation of the MeOH-DMA complex was determined to be 0.2 ± 0.1 atm(-1), corresponding to a ΔG value of about 4.0 kJ mol(-1).
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Affiliation(s)
- Lin Du
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
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33
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Torrent-Sucarrat M, Francisco JS, Anglada JM. Sulfuric Acid as Autocatalyst in the Formation of Sulfuric Acid. J Am Chem Soc 2012. [DOI: 10.1021/ja307523b] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Miquel Torrent-Sucarrat
- Departament de Química
Biològica i Modelització Molecular, Institut de Quimica Avançada de Catalunya, CSIC, E-08034
Barcelona, Spain
| | - Joseph S. Francisco
- Department
of Chemistry, Purdue University, West Lafayette,
Indiana 47907-2084,
United States
| | - Josep M. Anglada
- Departament de Química
Biològica i Modelització Molecular, Institut de Quimica Avançada de Catalunya, CSIC, E-08034
Barcelona, Spain
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34
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Jin B, Su MN, Lin JJM. Does Ozone–Water Complex Produce Additional OH Radicals in the Atmosphere? J Phys Chem A 2012; 116:12082-8. [DOI: 10.1021/jp309811n] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bing Jin
- Institute
of Atomic and Molecular
Sciences, Academia Sinica, Taipei 10617,
Taiwan
| | - Man-Nung Su
- Institute
of Atomic and Molecular
Sciences, Academia Sinica, Taipei 10617,
Taiwan
| | - Jim Jr-Min Lin
- Institute
of Atomic and Molecular
Sciences, Academia Sinica, Taipei 10617,
Taiwan
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 30010, Taiwan
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35
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Subbotin OS, Adamova TP, Belosludov RV, Mizuseki H, Kawazoe Y, Belosludov VR. Theoretical investigation of ozone hydrate formation conditions. J STRUCT CHEM+ 2012. [DOI: 10.1134/s0022476612040026] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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36
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Temelso B, Phan TN, Shields GC. Computational Study of the Hydration of Sulfuric Acid Dimers: Implications for Acid Dissociation and Aerosol Formation. J Phys Chem A 2012; 116:9745-58. [DOI: 10.1021/jp3054394] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Berhane Temelso
- Dean’s Office, College of Arts and Sciences,
and Department of Chemistry, Bucknell University, Lewisburg, Pennsylvania 17837,
United States
| | - Thuong Ngoc Phan
- Dean’s Office, College of Arts and Sciences,
and Department of Chemistry, Bucknell University, Lewisburg, Pennsylvania 17837,
United States
| | - George C. Shields
- Dean’s Office, College of Arts and Sciences,
and Department of Chemistry, Bucknell University, Lewisburg, Pennsylvania 17837,
United States
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37
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Du L, Lane JR, Kjaergaard HG. Identification of the dimethylamine-trimethylamine complex in the gas phase. J Chem Phys 2012; 136:184305. [PMID: 22583285 DOI: 10.1063/1.4707707] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We have identified the dimethylamine-trimethylamine complex (DMA-TMA) at room temperature in the gas phase. The Fourier transform infrared (FTIR) spectrum of DMA-TMA in the NH-stretching fundamental region was obtained by spectral subtraction of spectra of each monomer. Explicitly correlated coupled cluster calculations were used to determine the minimum energy structure and interaction energy of DMA-TMA. Frequencies and intensities of NH-stretching transitions were also calculated at this level of theory with an anharmonic oscillator local mode model. The fundamental NH-stretching intensity in DMA-TMA is calculated to be approximately 700 times larger than that of the DMA monomer. The measured and calculated intensity is used to determine a room temperature equilibrium constant of DMA-TMA of 1.7 × 10(-3) atm(-1) at 298 K.
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Affiliation(s)
- Lin Du
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
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38
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Hazra MK, Francisco JS, Sinha A. Computational study of hydrogen-bonded complexes of HOCO with acids: HOCO⋯HCOOH, HOCO⋯H2SO4, and HOCO⋯H2CO3. J Chem Phys 2012; 137:064319. [DOI: 10.1063/1.4742817] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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39
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Theoretical study on the gas phase reaction of dimethyl sulfoxide with atomic chlorine in the presence of water. Struct Chem 2012. [DOI: 10.1007/s11224-012-0086-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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40
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Leforestier C. Infrared shifts of the water dimer from the fully flexible ab initio HBB2 potential. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2012; 370:2675-2690. [PMID: 22547238 DOI: 10.1098/rsta.2011.0187] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We report calculations of the infrared shifts for the water dimer, as obtained from the recent ab initio fully flexible HBB2 potential of Bowman and co-workers. The rovibrational calculations, which formally are 12-dimensional plus overall rotation, were performed within the [6+6]d adiabatic separation which decouples the 'fast' intramolecular modes from the 'slow' intermolecular ones. Apart from this decoupling, each set of modes is treated in a fully variational approach. The intramolecular motion was described in terms of Radau coordinates, using the f-embedding formulation of Wei & Carrington, and neglecting the rovibrational Coriolis coupling terms. Within this adiabatic approximation, the intermolecular motion is handled in a similar way as for rigid monomers, except for the rotational constants B's, averaged over intramolecular modes that depend now on the intermolecular geometry. Comparison with experimental data shows an excellent overall agreement.
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Affiliation(s)
- Claude Leforestier
- Institut Charles Gerhardt (CTMM)-UMR 5253, CC 1501, Université Montpellier II-CNRS, 34095 Montpellier Cedex 05, France.
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41
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Kramer ZC, Takahashi K, Vaida V, Skodje RT. Will water act as a photocatalyst for cluster phase chemical reactions? Vibrational overtone-induced dehydration reaction of methanediol. J Chem Phys 2012; 136:164302. [DOI: 10.1063/1.4704767] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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42
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Thomsen DL, Kurtén T, Jørgensen S, Wallington TJ, Baggesen SB, Aalling C, Kjaergaard HG. On the possible catalysis by single water molecules of gas-phase hydrogen abstraction reactions by OH radicals. Phys Chem Chem Phys 2012; 14:12992-9. [DOI: 10.1039/c2cp40795g] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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43
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Du L, Kjaergaard HG. Fourier transform infrared spectroscopy and theoretical study of dimethylamine dimer in the gas phase. J Phys Chem A 2011; 115:12097-104. [PMID: 21950960 DOI: 10.1021/jp206762j] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Dimethylamine (DMA) has been studied by gas-phase Fourier transform infrared (FTIR) spectroscopy. We have identified a spectral transition that is assigned to the DMA dimer. The IR spectra of the dimer in the gas phase are obtained by spectral subtraction of spectra recorded at different pressures. The enthalpy of hydrogen bond formation was obtained for the DMA dimer by temperature-dependence measurements. We complement the experimental results with ab initio and anharmonic local mode model calculations of monomer and dimer. Compared to the monomer, our calculations show that in the dimer the N-H bond is elongated, and the NH-stretching fundamental shifts to a lower wavenumber. More importantly, the weak NH-stretching fundamental transition has a pronounced intensity increase upon complexation. However, the first NH-stretching overtone transition is not favored by the same intensity enhancement, and we do not observe the first NH-stretching overtone of the dimer. On the basis of the measured and calculated intensity of the NH-stretching transition of the dimer, the equilibrium constant for dimerization at room temperature was determined.
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Affiliation(s)
- Lin Du
- Department of Chemistry, University of Copenhagen, Copenhagen Ø, Denmark
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44
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Hazra MK, Kuang X, Sinha A. Influence of Intramolecular Hydrogen Bonding on OH-Stretching Overtone Intensities and Band Positions in Peroxyacetic Acid. J Phys Chem A 2011; 116:5784-95. [DOI: 10.1021/jp206637t] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Montu K. Hazra
- Department of Chemistry and Biochemistry, University of California, San Diego La Jolla, California 92093-0314, United States
| | | | - Amitabha Sinha
- Department of Chemistry and Biochemistry, University of California, San Diego La Jolla, California 92093-0314, United States
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45
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Affiliation(s)
- Veronica Vaida
- Department of Chemistry and Biochemistry, CIRES, University of Colorado, Boulder, Colorado 80309-0215, USA
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46
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47
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Hazra MK, Sinha A. Spectra and Integrated Band Intensities of the Low Order OH Stretching Overtones in Peroxyformic Acid: An Atmospheric Molecule with Prototypical Intramolecular Hydrogen Bonding. J Phys Chem A 2011; 115:5294-306. [DOI: 10.1021/jp112028c] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Montu K. Hazra
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0314, United States
| | - Amitabha Sinha
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0314, United States
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48
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Iuga C, Alvarez-Idaboy JR, Vivier-Bunge A. Mechanism and Kinetics of the Water-Assisted Formic Acid + OH Reaction under Tropospheric Conditions. J Phys Chem A 2011; 115:5138-46. [DOI: 10.1021/jp201517p] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Cristina Iuga
- Facultad de Química, Departamento de Física y Química Teórica, Universidad Nacional Autónoma de México, 04510 México D.F., Mexico
- Departamento de Ciencias Básicas, Universidad Autónoma Metropolitana—Azcapotzalco, 02200 México D.F., Mexico
| | - J. Raul Alvarez-Idaboy
- Facultad de Química, Departamento de Física y Química Teórica, Universidad Nacional Autónoma de México, 04510 México D.F., Mexico
- Departamento de Química, Universidad Autónoma Metropolitana—Iztapalapa, 09340 México D.F., Mexico
| | - Annik Vivier-Bunge
- Departamento de Química, Universidad Autónoma Metropolitana—Iztapalapa, 09340 México D.F., Mexico
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49
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Cirtog M, Asselin P, Soulard P, Tremblay B, Madebène B, Alikhani ME, Georges R, Moudens A, Goubet M, Huet TR, Pirali O, Roy P. The (CH2)2O−H2O Hydrogen Bonded Complex. Ab Initio Calculations and Fourier Transform Infrared Spectroscopy from Neon Matrix and a New Supersonic Jet Experiment Coupled to the Infrared AILES Beamline of Synchrotron SOLEIL. J Phys Chem A 2011; 115:2523-32. [DOI: 10.1021/jp111507z] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- M. Cirtog
- UPMC Univ Paris 06, UMR 7075, Laboratoire de Dynamique, Interactions et Réactivité (LADIR), F-75005, Paris, France
- CNRS, UMR 7075, Laboratoire de Dynamique, Interactions et Réactivité (LADIR), F-75005, Paris, France
| | - P. Asselin
- UPMC Univ Paris 06, UMR 7075, Laboratoire de Dynamique, Interactions et Réactivité (LADIR), F-75005, Paris, France
- CNRS, UMR 7075, Laboratoire de Dynamique, Interactions et Réactivité (LADIR), F-75005, Paris, France
| | - P. Soulard
- UPMC Univ Paris 06, UMR 7075, Laboratoire de Dynamique, Interactions et Réactivité (LADIR), F-75005, Paris, France
- CNRS, UMR 7075, Laboratoire de Dynamique, Interactions et Réactivité (LADIR), F-75005, Paris, France
| | - B. Tremblay
- UPMC Univ Paris 06, UMR 7075, Laboratoire de Dynamique, Interactions et Réactivité (LADIR), F-75005, Paris, France
- CNRS, UMR 7075, Laboratoire de Dynamique, Interactions et Réactivité (LADIR), F-75005, Paris, France
| | - B. Madebène
- UPMC Univ Paris 06, UMR 7075, Laboratoire de Dynamique, Interactions et Réactivité (LADIR), F-75005, Paris, France
- CNRS, UMR 7075, Laboratoire de Dynamique, Interactions et Réactivité (LADIR), F-75005, Paris, France
| | - M. E. Alikhani
- UPMC Univ Paris 06, UMR 7075, Laboratoire de Dynamique, Interactions et Réactivité (LADIR), F-75005, Paris, France
- CNRS, UMR 7075, Laboratoire de Dynamique, Interactions et Réactivité (LADIR), F-75005, Paris, France
| | - R. Georges
- Institut de Physique de Rennes, UMR 6251, Campus de Beaulieu, Bat 11C, Université de Rennes 1-CNRS, 35042 Rennes Cedex, France
| | - A. Moudens
- Institut de Physique de Rennes, UMR 6251, Campus de Beaulieu, Bat 11C, Université de Rennes 1-CNRS, 35042 Rennes Cedex, France
| | - M. Goubet
- Laboratoire de Physique des Lasers, Atomes et Molécules, Bâtiment P5, UMR8523 Université Lille 1-CNRS, F-59655 Villeneuve d’Ascq Cedex, France
| | - T. R. Huet
- Laboratoire de Physique des Lasers, Atomes et Molécules, Bâtiment P5, UMR8523 Université Lille 1-CNRS, F-59655 Villeneuve d’Ascq Cedex, France
| | - O. Pirali
- Ligne AILES- Synchrotron SOLEIL, L’Orme des Merisiers, F-91192 Gif-sur-Yvette Cedex, France
| | - P. Roy
- Ligne AILES- Synchrotron SOLEIL, L’Orme des Merisiers, F-91192 Gif-sur-Yvette Cedex, France
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Ghosh D, Mondal B, Bagchi S, Kumar Das A. Isomers of OCS and their reaction with H2O on singlet potential energy surface. Mol Phys 2010. [DOI: 10.1080/00268976.2010.510805] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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