1
|
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.
Collapse
Affiliation(s)
- Arthur M Halpern
- Department of Chemistry and Physics, Indiana State University, Terre Haute, Indiana 47809 ,United States
| |
Collapse
|
2
|
Cappelletti D, Falcinelli S, Pirani F. The dawn of hydrogen and halogen bonds and their crucial role in collisional processes probing long-range intermolecular interactions. Phys Chem Chem Phys 2024; 26:7971-7987. [PMID: 38411471 DOI: 10.1039/d3cp05871a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
This perspective review focuses on the results of an internally consistent study developed in the Perugia laboratory, centered on the fundamental interaction components that, at large intermolecular distances, determine the formation of weak intermolecular hydrogen (HB) and halogen (XB) bonds. This investigation exploits old and novel molecular beam scattering experiments involving several gaseous prototypical systems. In particular, we focus on the kinetic energy dependence of the total (elastic + inelastic) integral cross-sections. Of particular interest is the measure of quantum interference patterns in the energy dependence of cross-sections of targeted systems and their shift compared to that of known reference systems. We interpreted these findings as interaction energy stabilization components, such as charge transfer, σ-hole, and polar flattening, that emerge at intermediate separation distance ranges and selectively manifest for specific geometries of collision complexes. Another significant observable we discuss is the absolute value of the cross-section and its dependence on permanent multipole moments of the collisional partners. Specifically, we show how the spontaneous orientation of rotationally cold and polar molecules, due to the electric field gradient associated with the interaction between permanent multipole moments, can significantly modify the magnitude of the total cross-section, even at high values of the impact parameter. We are confident that the present results can help extend the force field formulation to various interacting systems and carry out molecular dynamics simulations under conditions of application interest.
Collapse
Affiliation(s)
- David Cappelletti
- Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, via Elce di Sotto 8, 06123 Perugia, Italy.
| | - Stefano Falcinelli
- Dipartimento di Ingegneria Civile ed Ambientale, Università degli Studi di Perugia, via G. Duranti 93, 06215 Perugia, Italy
| | - Fernando Pirani
- Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, via Elce di Sotto 8, 06123 Perugia, Italy.
- Dipartimento di Ingegneria Civile ed Ambientale, Università degli Studi di Perugia, via G. Duranti 93, 06215 Perugia, Italy
| |
Collapse
|
3
|
Zhang XL, Yang SB, Hou D, Li H. An intramolecular vibrationally excited intermolecular potential energy surface and predicted 2OH overtone spectroscopy of H 2O-Kr. Phys Chem Chem Phys 2023; 25:29940-29950. [PMID: 37902029 DOI: 10.1039/d3cp04126c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
A new five-dimensional potential energy surface (PES) for H2O-Kr which explicitly includes the intramolecular 2OH overtone state of the H2O monomer is presented. The intermolecular potential energies were evaluated using explicitly correlated coupled cluster theory [CCSD(T)-F12] with a large basis set. Four vibrationally averaged analytical intermolecular PESs for H2O-Kr with H2O molecules in its |00+〉, |02+〉, |02-〉, and |11+〉 states are obtained by fitting to the multi-dimensional Morse/Long-Range potential function form. Each vibrationally averaged PES fitted to 578 points has root-mean-square (RMS) deviations smaller than 0.14 cm-1 and requires only 58 parameters. The combined radial discrete variable representation/angular finite basis representation method and the Lanczos algorithm were employed to calculate the rovibrational energy levels for |00+〉, |02+〉, |02-〉, and |11+〉 states of the H2O-Kr complexes. The calculated |02-〉Πf/e(101) ← |00+〉Σe(000) and |02+〉Πf/e(110) ← |00+〉Σe(101) infrared transitions are in excellent agreement with the experimental values with RMS discrepancies being only 0.007 and 0.016 cm-1, respectively. These analytical PESs can be used to provide reliable theoretical guidance for future infrared overtone spectroscopy of H2O-Kr.
Collapse
Affiliation(s)
- Xiao-Long Zhang
- The Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, P. R. China
| | - Shu-Bin Yang
- The Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, P. R. China
| | - Dan Hou
- Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang 330045, P. R. China.
| | - Hui Li
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 2519 Jiefang Road, Changchun 130023, P. R. China.
| |
Collapse
|
4
|
Glorieux R, Hays BM, Bogomolov AS, Herman M, Vanfleteren T, Moazzen-Ahmadi N, Lauzin C. Understanding the high-resolution spectral signature of the N2-H2O van der Waals complex in the 2OH stretch region. J Chem Phys 2023; 158:2895232. [PMID: 37290075 DOI: 10.1063/5.0150823] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 05/17/2023] [Indexed: 06/10/2023] Open
Abstract
We present the observation of the N2-H2O van der Waals complex in the 2OH stretch overtone region. The high-resolution jet cooled spectra were measured using a sensitive continuous wave cavity ringdown spectrometer. Several bands were observed and vibrationally assigned in terms of ν1, ν2, and ν3, the vibrational quantum numbers of the isolated H2O molecule, as (ν1'ν2'ν3')←(ν1″ν2″ν3″)=(200)←(000) and (101) ← (000). A combination band involving the excitation of the in-plane bending motion of N2 and the (101) vibration of water is also reported. The spectra were analyzed using a set of four asymmetric top rotors, each associated with a nuclear spin isomer. Several local perturbations of the (101) vibrational state were observed. These perturbations were assigned to the presence of the nearby (200) vibrational state and to the combination of (200) with intermolecular modes.
Collapse
Affiliation(s)
- R Glorieux
- Institute of Condensed Matter and Nanosciences, Université Catholique de Louvain (UCLouvain), Chemin Du Cyclotron, 2 1348 Louvain-la-Neuve, Belgium
| | - B M Hays
- Institute of Condensed Matter and Nanosciences, Université Catholique de Louvain (UCLouvain), Chemin Du Cyclotron, 2 1348 Louvain-la-Neuve, Belgium
| | - A S Bogomolov
- Voevodsky Institute of Chemical Kinetics and Combustion, Institutskaya Str. 3, Novosibirsk, Russia
| | - M Herman
- Spectroscopy, Quantum Chemistry and Atmospheric Remote Sensing (SQUARES), Faculté des Sciences, Université Libre de Bruxelles (ULB), 50 Ave. F-D Roosevelt, B-1050 Brussels, Belgium
| | - T Vanfleteren
- Spectroscopy, Quantum Chemistry and Atmospheric Remote Sensing (SQUARES), Faculté des Sciences, Université Libre de Bruxelles (ULB), 50 Ave. F-D Roosevelt, B-1050 Brussels, Belgium
| | - N Moazzen-Ahmadi
- Department of Physics and Astronomy, University of Calgary, 2500 University Drive North West, Calagry, Alberta T2N 1N4, Canada
| | - C Lauzin
- Institute of Condensed Matter and Nanosciences, Université Catholique de Louvain (UCLouvain), Chemin Du Cyclotron, 2 1348 Louvain-la-Neuve, Belgium
| |
Collapse
|
5
|
Vogt E, Kjaergaard HG. Vibrational Spectroscopy of the Water Dimer at Jet-Cooled and Atmospheric Temperatures. Annu Rev Phys Chem 2022; 73:209-231. [PMID: 35044791 DOI: 10.1146/annurev-physchem-082720-104659] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The vibrational spectroscopy of the water dimer provides an understanding of basic hydrogen bonding in water clusters, and with about one water dimer for every 1,000 water molecules, it plays a critical role in atmospheric science. Here, we review how the experimental and theoretical progress of the past decades has improved our understanding of water dimer vibrational spectroscopy under both cold and warm conditions. We focus on the intramolecular OH-stretching transitions of the donor unit, because these are the ones mostly affected by dimer formation and because their assignment has proven a challenge. We review cold experimental results from early matrix isolation to recent mass-selected jet expansion techniques and, in parallel, the improvements in the theoretical anharmonic models. We discuss and illustrate changes in the vibrational spectra of complexes upon increasing temperature, and the difficulties in recording and calculating these spectra. In the atmosphere, water dimer spectra at ambient temperature are crucial. Expected final online publication date for the Annual Review of Physical Chemistry, Volume 73 is April 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
Collapse
Affiliation(s)
- Emil Vogt
- Department of Chemistry, University of Copenhagen, Copenhagen, Denmark;
| | | |
Collapse
|
6
|
Glorieux R, Lauzin C, Barclay AJ, Herman M, Moazzen-Ahmadi N. Spectroscopic study of the tunneling dynamics in N 2-water observed in the O-D stretch region. J Chem Phys 2021; 155:174309. [PMID: 34742199 DOI: 10.1063/5.0071732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The O-D stretch rovibrational spectra of N2-D2O and N2-DOH were measured and analyzed. A combination band involving the in-plane N2 bending vibration was also observed. These bands were recorded using a pulsed-slit supersonic jet expansion and a mid-infrared tunable optical parametric oscillator. The spectra were analyzed by considering the feasible tunneling motions, and transitions were fitted to independent asymmetric rotors for each tunneling state. The rotational constants of the four tunneling components of N2-D2O were retrieved for the excited vibrational states. A two order of magnitude increase in the tunneling splittings is observed for the asymmetric O-D stretch (ν3 in D2O) excitation compared to the symmetric stretch (ν1 in D2O) and to the ground vibrational state. This last finding indicates that the ν3 vibrational state is likely perturbed by a combination state that includes ν1. Finally, the observation of a local perturbation in the ν3 vibrational band, affecting the positions of few rovibrational levels, provides an experimental lower limit of the dissociation energy of the complex, D0 > 120 cm-1.
Collapse
Affiliation(s)
- R Glorieux
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain (U.C.L.), Chemin du cyclotron 2, 1348 Louvain-la-Neuve, Belgium
| | - C Lauzin
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain (U.C.L.), Chemin du cyclotron 2, 1348 Louvain-la-Neuve, Belgium
| | - A J Barclay
- Department of Physics and Astronomy, University of Calgary, 2500 University Drive North West, Calagry, Alberta T2N 1N4, Canada
| | - M Herman
- Spectroscopy, Quantum Chemistry and Atmospheric Remote Sensing (SQUARES), Faculté des Sciences, Université libre de Bruxelles (ULB), 50 ave. F-D Roosevelt, B-1050 Brussels, Belgium
| | - N Moazzen-Ahmadi
- Department of Physics and Astronomy, University of Calgary, 2500 University Drive North West, Calagry, Alberta T2N 1N4, Canada
| |
Collapse
|
7
|
Bogomolov A, Roucou A, Bejjani R, Herman M, Moazzen-Ahmadi N, Lauzin C. The rotationally resolved symmetric 2OH excitation in H2O-CO2 observed using pulsed supersonic expansion and CW-CRDS. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138606] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
8
|
Taamalli S, Pitoňák M, Dibble TS, Černušák I, Louis F. Theoretical Study of the Monohydration of Mercury Compounds of Atmospheric Interest. J Phys Chem A 2021; 125:5819-5828. [PMID: 34180661 DOI: 10.1021/acs.jpca.1c02772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The structures, vibrational frequencies, and model IR spectra of the monohydrates of oxygenated mercury compounds (BrHgO, BrHgOH, BrHgOOH, BrHgNO2, BrHgONO, and HgOH) have been theoretically studied using the ωB97X-D/aug-cc-pVTZ level of theory. The ground state potential energy surface exhibits several stable structures of these monohydrates. The thermodynamic properties of the hydration reactions have been calculated at different levels of theory including DFT and coupled-cluster calculations DK-CCSD(T) with the ANO-RCC-Large basis sets. Standard enthalpies and Gibbs free energies of hydration were computed. The temperature dependence of ΔrG°(T) was evaluated for the most stable complexes over the temperature range 200-400 K. Thermodynamic data revealed that the highest fraction hydrated at 298 K and 100% relative humidity will be BrHgNO2-H2O at ∼5%.
Collapse
Affiliation(s)
- Sonia Taamalli
- CNRS, UMR 8522 - PC2A - PhysicoChimie des Processus de Combustion et de l'Atmosphère, Université Lille, 59000 Lille, France
| | - Michal Pitoňák
- Department of Physical and Theoretical Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovičova 6, 84215 Bratislava, Slovakia.,Computing Center, Centre of Operations of the Slovak Academy of Sciences, Dúbravská cesta 9, 845 35 Bratislava, Slovakia
| | - Theodore S Dibble
- Department of Chemistry, State University of New York-College of Environmental Science and Forestry, 1 Forestry Drive, Syracuse, New York 13210, United States
| | - Ivan Černušák
- Department of Physical and Theoretical Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovičova 6, 84215 Bratislava, Slovakia
| | - Florent Louis
- CNRS, UMR 8522 - PC2A - PhysicoChimie des Processus de Combustion et de l'Atmosphère, Université Lille, 59000 Lille, France
| |
Collapse
|
9
|
Frandsen BN, Deal AM, Lane JR, Vaida V. Lactic Acid Spectroscopy: Intra- and Intermolecular Interactions. J Phys Chem A 2020; 125:218-229. [PMID: 33377780 DOI: 10.1021/acs.jpca.0c09341] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Lactic acid, a relevant molecule in biology and the environment, is an α-hydroxy acid with a high propensity to form hydrogen bonds, both internally and to other hydrogen-bond-accepting molecules. This work includes the novel recording of infrared spectra of gas-phase lactic acid using Fourier transform infrared spectroscopy, and the vibrational absorption features of lactic acid are assigned with the aid of computationally simulated vibrational spectra with anharmonic corrections. Theoretical chemistry methods are used to relate intramolecular hydrogen-bond strengths to the relative stability of lactic acid conformers. The formation of hydrogen-bonded lactic acid dimers and 1:1 water complexes is investigated by simulated vibrational spectra and calculated thermodynamic parameters for the lactic acid monomer and dimer and its water complex in the gas phase. The results of this study are discussed in the context of environmental chemistry with an emphasis on indoor environments.
Collapse
Affiliation(s)
- Benjamin N Frandsen
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, United States.,Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, UCB 216, Boulder, Colorado 80309, United States
| | - Alexandra M Deal
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, United States.,Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, UCB 216, Boulder, Colorado 80309, United States
| | - Joseph R Lane
- School of Science, University of Waikato, Private Bag 3105, Hamilton 3240, New Zealand
| | - Veronica Vaida
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, United States.,Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, UCB 216, Boulder, Colorado 80309, United States
| |
Collapse
|
10
|
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.
Collapse
Affiliation(s)
- L Sandhiya
- CSIR - National Institute of Science, Technology and Development Studies, New Delhi-110012, India.
| | | |
Collapse
|
11
|
Grein F. CH4–N2, NH3–N2, H2O–N2 and HF–N2 complexes: Ab initio studies and comparisons—transition to hydrogen bonding. Theor Chem Acc 2020. [DOI: 10.1007/s00214-020-02678-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
12
|
Wang L, Zhang XL, Zhai Y, Nooijen M, Li H. Explicitly correlated ab initio potential energy surface and predicted rovibrational spectra for H 2O-N 2 and D 2O-N 2 complexes. J Chem Phys 2020; 153:054303. [PMID: 32770926 DOI: 10.1063/5.0009098] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
An ab initio intermolecular potential energy surface (PES) for the van der Waals complex of H2O-N2 that explicitly incorporates the intramolecular Q2 bending normal mode of the H2O monomer is presented. The electronic structure computations have been carried out at the explicitly correlated coupled cluster theory [CCSD(T)-F12] with an augmented correlation-consistent triple zeta basis set and an additional bond function. Analytic five-dimensional intermolecular PESs for ν2(H2O) = 0 and 1 are obtained by fitting to the multi-dimensional Morse/long-range potential function form. These fits to 40 890 points have the root-mean-square (rms) discrepancy of 0.88 cm-1 for interaction energies less than 2000.0 cm-1. The resulting vibrationally averaged PESs provide good representations of the experimental microwave and infrared data: for microwave transitions of H2O-N2, the rms discrepancy is only 0.0003 cm-1, and for infrared transitions of the A1 symmetry of the H2O(ν2 = 1 ← 0)-N2, the rms discrepancy is 0.001 cm-1. The calculated infrared band origin shifts associated with the ν2 bending vibration of water are 2.210 cm-1 and 1.323 cm-1 for H2O-N2 and D2O-N2, respectively, in good agreement with the experimental values of 2.254 cm-1 and 1.266 cm-1. The benchmark tests and comparisons of the predicted spectral properties are carried out between CCSD(T)-F12a and CCSD(T)-F12b approaches.
Collapse
Affiliation(s)
- Lu Wang
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 2519 Jiefang Road, Changchun 130023, China
| | - Xiao-Long Zhang
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 2519 Jiefang Road, Changchun 130023, China
| | - Yu Zhai
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 2519 Jiefang Road, Changchun 130023, China
| | - Marcel Nooijen
- Department of Chemistry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Hui Li
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 2519 Jiefang Road, Changchun 130023, China
| |
Collapse
|
13
|
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
| |
Collapse
|
14
|
Chen D, Wang W, Li D, Wang W. Atmospheric implication of synergy in methanesulfonic acid–base trimers: a theoretical investigation. RSC Adv 2020; 10:5173-5182. [PMID: 35498315 PMCID: PMC9049051 DOI: 10.1039/c9ra08760e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 12/24/2019] [Indexed: 11/27/2022] Open
Abstract
Synergy between molecules is ubiquitous in atmospheric clusters and significantly affects new particle formation (NPF). Herein, the effects of the synergy between base molecules on the stability and evaporation of MSA–X–Y (MSA = methanesulfonic acid; X, Y = ammonia (A), methylamine (M), or dimethylamine (D)) trimers were investigated via density functional theory (DFT) and the atmospheric clusters dynamic code (ACDC) method. The results show that proton transfer from MSA to X is exothermal and barrierless due to the synergy between X and Y molecules in MSA–X–Y trimers compared with MSA-X dimers. Cyclic hydrogen bonds are a typical characteristic of the stable trimers. Topological analysis using atoms in molecules (AIM) theory indicates that the electron density (ρ) and Laplacian of the electron density (∇2ρ) at the bond critical points (BCPs) in the trimers exceed the standard range of hydrogen bonds. The affinity for attaching a Y molecule to the MSA–X dimers and the substitution of Y1 (Y = A and MA) by Y2 (Y2 = MA and DMA) in the MSA–X–Y trimers are thermodynamically spontaneous. In addition, the cyclic stabilization energy of the MSA–X–Y trimers increased as the alkalinities of X and Y increased. The total evaporation rate of the trimers decreased as the alkalinities of X and Y increased. Low temperature and high pressure significantly facilitate the formation of trimers. It is further confirmed that synergy plays an important role in atmospheric NPF events. The effects of synergy of between X and Y on the stability of MSA–X–Y trimers were investigated via quantum chemical and kinetics simulation method.![]()
Collapse
Affiliation(s)
- Dongping Chen
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710119
- P. R. China
| | - Weina Wang
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710119
- P. R. China
| | - Danfeng Li
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710119
- P. R. China
| | - Wenliang Wang
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710119
- P. R. China
| |
Collapse
|
15
|
Zhang G, Wei S, Wu B, Chen Z, Zhang S. Nonnegligible Generation of Hydroxyl Radicals from UVC Photolysis of Aqueous Nitrous Oxide. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:9785-9792. [PMID: 30074775 DOI: 10.1021/acs.est.8b02145] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Nitrous oxide (N2O) is widely used in radiation-chemistry and photochemistry as a scavenger to convert a hydrated electron ( eaq-) into a hydroxyl radical (·OH). However, few investigations pay attention to the photochemistry of dissolved N2O itself. The effects of purged N2O on photochemical processes are unclear and neglected. In the present work, the effects of N2O on the hydroxylation of terephthalic acid (TPA) were investigated with both medium-pressure and low-pressure mercury lamps as the light sources. Under short-wavelength UV (200-300 nm) irradiation, N2O accelerated the decay of TPA and the formation of 2-hydroxylterephthalic acid (hTPA). The effective quantum yield of ·OH from the photolysis of dissolved N2O at 254 nm was determined as 1.15-1.63, which was far larger than those of NO3- (0.09) and NO2- (0.046). On the basis of the kinetic analysis in N2 and N2O purged solutions, isotope fractionation with heavy oxygen water, and ·OH scavenging experiments with tert-butyl alcohol, the contribution of the ·OH radicals generated from the photolysis of N2O to the formation of hTPA (61.7%) was determined to be 1 order of magnitude higher than that from the converted eaq- (6.5%). These results demonstrate that using N2O and ·OH probes to quantify photogenerated eaq- in UVC irradiation might lead to false results. The work here is helpful for the proper design of scavenging and probing experiments by the combination of N2O and ·OH probes.
Collapse
Affiliation(s)
- Guoyang Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment , Nanjing University , 163 Xianlin Avenue , Nanjing 210023 , China
| | - Shijie Wei
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment , Nanjing University , 163 Xianlin Avenue , Nanjing 210023 , China
| | - Bingdang Wu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment , Nanjing University , 163 Xianlin Avenue , Nanjing 210023 , China
| | - Zhihao Chen
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment , Nanjing University , 163 Xianlin Avenue , Nanjing 210023 , China
| | - Shujuan Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment , Nanjing University , 163 Xianlin Avenue , Nanjing 210023 , China
| |
Collapse
|
16
|
Ziemkiewicz MP, Pluetzer C, Loreau J, van der Avoird A, Nesbitt DJ. Nuclear spin/parity dependent spectroscopy and predissociation dynamics in v OH = 2 ← 0 overtone excited Ne-H 2O clusters: Theory and experiment. J Chem Phys 2018; 147:214304. [PMID: 29221389 DOI: 10.1063/1.5001335] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Vibrationally state selective overtone spectroscopy and state- and nuclear spin-dependent predissociation dynamics of weakly bound ortho- and para-Ne-H2O complexes (D0(ortho) = 34.66 cm-1 and D0(para) = 31.67 cm-1) are reported, based on near-infrared excitation of van der Waals cluster bands correlating with vOH = 2 ← 0 overtone transitions (|02-〉 and |02+〉) out of the ortho (101) and para (000) internal rotor states of the H2O moiety. Quantum theoretical calculations for nuclear motion on a high level potential energy surface [CCSD(T)/VnZf12 (n = 3, 4)], corrected for basis set superposition error and extrapolated to the complete basis set (CBS) limit, are employed to successfully predict and assign Π-Σ, Σ-Σ, and Σ-Π infrared bands in the spectra, where Σ or Π represent approximate projections of the body-fixed H2O angular momentum along the Ne-H2O internuclear axis. IR-UV pump-probe experimental capabilities permit real-time measurements of the vibrational predissociation dynamics, which indicate facile intramolecular vibrational energy transfer from the H2O vOH = 2 overtone vibrations into the VdWs (van der Waals) dissociation coordinate on the τprediss = 15-25 ns time scale. Whereas all predicted strong transitions in the ortho-Ne-H2O complexes are readily detected and assigned, vibrationally mediated photolysis spectra for the corresponding para-Ne-H2O bands are surprisingly absent despite ab initio predictions of Q-branch intensities with S/N > 20-40. Such behavior signals the presence of highly selective nuclear spin ortho-para predissociation dynamics in the upper state, for which we offer a simple mechanism based on Ne-atom mediated intramolecular vibrational relaxation in the H2O subunit (i.e., |02±〉 → {|01±〉; v2 = 2}), which is confirmed by the ab initio energy level predictions and the nascent OH rotational (N), spin orbit (Π1/2,3/2), and lambda doublet product distributions.
Collapse
Affiliation(s)
| | - Christian Pluetzer
- West Pharmaceuticals Services Deutschland GmbH & Co. KG, Stolberger Strasse 21-41, 52249 Eschweiler, Germany
| | - Jérôme Loreau
- Université Libre de Bruxelles, Service de Chimie Quantique et Photophysique, 50 Ave. F. D. Roosevelt, CP 160/09, 1050 Brussels, Belgium
| | - Ad van der Avoird
- Theoretical Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - David J Nesbitt
- JILA, National Institute of Standards and Technology, University of Colorado, and Department of Chemistry and Biochemistry, University of Colorado at Boulder, Boulder, Colorado 80309, USA
| |
Collapse
|
17
|
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.
Collapse
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
| |
Collapse
|
18
|
Sheng X, Zhao H, Du L. Molecular understanding of the interaction of methyl hydrogen sulfate with ammonia/dimethylamine/water. CHEMOSPHERE 2017; 186:331-340. [PMID: 28800534 DOI: 10.1016/j.chemosphere.2017.08.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 08/01/2017] [Accepted: 08/03/2017] [Indexed: 06/07/2023]
Abstract
Theoretical calculations at the B3LYP-D3/aug-cc-pVTZ (aug-cc-pV(T+d)Z for sulfur) level were used to investigate the contribution of methyl hydrogen sulfate (MHS) to new particle formation with the common atmospheric aerosol nucleation precursors including water (H2O), ammonia (NH3), and dimethylamine (DMA). A typical characteristic feature of the MHS-containing complexes is the formation of six- or eight-membered ring structures via SOH⋯O (MHS donor), OH⋯O/N (H2O donor) and NH⋯O/N (NH3/DMA donor). The stability of the complexes was evaluated based on the calculated binding energies. The molecular interactions between three molecules are found to be more thermodynamically favorable than the complexes consisting two molecules. The red shifts of the SOH-stretching (MHS donor) vibrational transitions with respect to the isolated monomers are much larger than the red shifts of the OH (H2O donor) and NH-stretching (NH3/DMA donor) vibrational transitions. Topological analysis shows that the electron density and Laplacian at the bond critical points beyond the range of hydrogen bonding criteria for most of the complexes. This is due to the strong acid-base interaction between MHS and DMA or NH3, thus leads to a proton transfer from MHS to DMA or NH3. Remarkably, the atmospheric relevance of the MHS-containing complexes is much higher than H2SO4, which is evaluated by combining the calculated thermodynamic data and the concentrations of the reactant species. This study reveals the environmental fate of MHS could serve as nucleation centers in new particle formation.
Collapse
Affiliation(s)
- Xia Sheng
- College of Chemistry, Chemical and Environmental Engineering, Henan University of Technology, Lianhua Street 100, 450001 Zhengzhou, China
| | - Hailiang Zhao
- College of Chemistry, Chemical and Environmental Engineering, Henan University of Technology, Lianhua Street 100, 450001 Zhengzhou, China; Environment Research Institute, Shandong University, Shanda South Road 27, 250100 Jinan, China
| | - Lin Du
- Environment Research Institute, Shandong University, Shanda South Road 27, 250100 Jinan, China.
| |
Collapse
|
19
|
Zhao H, Tang S, Du L. Hydrogen bond docking site competition in methyl esters. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 181:122-130. [PMID: 28351818 DOI: 10.1016/j.saa.2017.03.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 03/07/2017] [Accepted: 03/17/2017] [Indexed: 06/06/2023]
Abstract
The OH⋯O hydrogen bonds in the 2,2,2-trifluoroethanol (TFE)-methyl ester complexes in the gas phase have been investigated by FTIR spectroscopy and DFT calculations. Methyl formate (MF), methyl acetate (MA), and methyl trifluoroacetate (MTFA) were chosen as the hydrogen bond acceptors. A dominant inter-molecular hydrogen bond was formed between the OH group of TFE and different docking sites in the methyl esters (carbonyl oxygen or ester oxygen). The competition of the two docking sites decides the structure and spectral properties of the complexes. On the basis of the observed red shifts of the OH-stretching transition with respect to the TFE monomer, the order of the hydrogen bond strength can be sorted as TFE-MA (119cm-1)>TFE-MF (93cm-1)>TFE-MTFA (44cm-1). Combining the experimental infrared spectra with the DFT calculations, the Gibbs free energies of formation were determined to be 1.5, 4.5 and 8.6kJmol-1 for TFE-MA, TFE-MF and TFE-MTFA, respectively. The hydrogen bonding in the MTFA complex is much weaker than those of the TFE-MA and TFE-MF complexes due to the effect of the CF3 substitution on MTFA, while the replacement of an H atom with a CH3 group in methyl ester only slightly increases the hydrogen bond strength. Topological analysis and localized molecular orbital energy decomposition analysis was also applied to compare the interactions in the complexes.
Collapse
Affiliation(s)
- Hailiang Zhao
- 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.
| |
Collapse
|
20
|
Oswald S, Wallrabe M, Suhm MA. Cooperativity in Alcohol-Nitrogen Complexes: Understanding Cryomatrices through Slit Jet Expansions. J Phys Chem A 2017; 121:3411-3422. [PMID: 28443670 DOI: 10.1021/acs.jpca.7b01265] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
FTIR spectroscopy of supersonic expansions is used to characterize alcohol dimers with one, two, and several nitrogen molecules attached to them. The nitrogen coating causes progressive spectral downshifts of the OH stretching fundamentals which are related to and explain matrix isolation shifts. Comparison of methanol, tert-butyl alcohol and ethanol as well as deuteration of methanol assist in the assignment. Alcohol monomers and trimers are significantly more resistant to nitrogen coating due to a lack of cooperativity and dangling bonds, respectively. In the case of ethanol, the role of conformational isomerism and combination bands is further elucidated. The experimental findings help rationalize the anomalously small OH stretching dimerization shift of methanol in the gas phase, in comparison to that of tert-butyl alcohol.
Collapse
Affiliation(s)
- Sönke Oswald
- Institut für Physikalische Chemie, Georg-August-Universität Göttingen , Tammannstraße 6, 37077 Göttingen, Germany
| | - Mareike Wallrabe
- Institut für Physikalische Chemie, Georg-August-Universität Göttingen , Tammannstraße 6, 37077 Göttingen, Germany
| | - Martin A Suhm
- Institut für Physikalische Chemie, Georg-August-Universität Göttingen , Tammannstraße 6, 37077 Göttingen, Germany
| |
Collapse
|
21
|
Lane JR, Hansen AS, Mackeprang K, Kjaergaard HG. Kinetic Energy Density as a Predictor of Hydrogen-Bonded OH-Stretching Frequencies. J Phys Chem A 2017; 121:3452-3460. [DOI: 10.1021/acs.jpca.7b02523] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Joseph R. Lane
- School
of Science, University of Waikato, Private Bag 3105, Hamilton 3240, New Zealand
| | - Anne S. Hansen
- Department
of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark
| | - Kasper Mackeprang
- 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
| |
Collapse
|
22
|
Zhao H, Jiang X, Du L. Contribution of methane sulfonic acid to new particle formation in the atmosphere. CHEMOSPHERE 2017; 174:689-699. [PMID: 28199945 DOI: 10.1016/j.chemosphere.2017.02.040] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 02/05/2017] [Accepted: 02/06/2017] [Indexed: 06/06/2023]
Abstract
Methane sulfonic acid (MSA) is present in substantial concentrations in the gas phase over oceans and coastal regions. We present an investigation into the contribution of MSA to new particle formation with the common atmospheric aerosol nucleation precursors including MSA, methanol, formic acid, acetone, dimethylether, formaldehyde, methyl formate, by making use a quantum chemical approach. Density functional theory calculations indicate that these bimolecular complexes are characterized by the presence of strong inter-molecular hydrogen bonds (SOH⋯O) with large binding energies and thermodynamic equilibrium constants. Topological analysis employing quantum theory of atoms in molecules shows that the charge density of the SOH⋯O hydrogen bonds of the MSA complexes falls in the range of hydrogen bonding criteria, but the Laplacian at bond critical points exceeds the range, which is due to the strong hydrogen bonding interactions. In all the studied complexes, the electrostatic interactions are found to be the main attractive force by localized molecular orbital energy decomposition analysis. All these indicate the environmental fate of MSA could play the role of nucleation centers in new particle formation. The effect of the atmospheric heights (0-12 km) was also considered. The Gibbs free energy of formation decreases with the increase of the atmospheric height owing to the decrease of the atmospheric temperature and pressure. The calculated Gibbs free energies of formation within the atmospheric temperature and pressure range could help to understand the atmospheric pollution.
Collapse
Affiliation(s)
- Hailiang Zhao
- Environment Research Institute, Shandong University, Shanda South Road 27, 250100 Shandong, China
| | - Xiaotong Jiang
- 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.
| |
Collapse
|
23
|
Shchepin AS, Peshkova TV, Peshkov SA. Induction of radiative forbidden transitions in an oxygen molecule in O2–H2O collision complexes. J STRUCT CHEM+ 2017. [DOI: 10.1134/s0022476617030015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
24
|
Zhao H, Du L. Atmospheric implication of the hydrogen bonding interaction in hydrated clusters of HONO and dimethylamine in the nighttime. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2017; 19:65-77. [PMID: 28004053 DOI: 10.1039/c6em00598e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this study, the stability of clusters formed by the trans- and cis-isomers of nitrous acid (HONO) with dimethylamine (DMA) and water has been characterized by density functional theory. The large red shifts of the OH-stretching transitions of both HONO isomers in the clusters indicate the formation of strong hydrogen bonds. At standard temperature and pressure, H2O (acceptor) binds to HONO (donor) with binding energies of -25.0 to -24.6 kJ mol-1, less stable than those of DMA (acceptor) with HONO (donor) (-50.5 to -45.3 kJ mol-1). Our findings indicate that hydration enhances proton transfer from HONO to DMA, and consequently increases the interaction strength (binding energies = -67.8 to -78.6 kJ mol-1). The topological and generalized Kohn-Sham energy decomposition confirms strong hydrogen bond interactions. The clustering of HONO with DMA in the atmosphere is negligible as compared to the important H2SO4-DMA clusters.
Collapse
Affiliation(s)
- Hailiang Zhao
- 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.
| |
Collapse
|
25
|
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.
Collapse
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
| |
Collapse
|
26
|
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.
Collapse
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
| | | | | |
Collapse
|
27
|
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]
|
28
|
Schrøder SD, Wallberg JH, Kroll JA, Maroun Z, Vaida V, Kjaergaard HG. Intramolecular Hydrogen Bonding in Methyl Lactate. J Phys Chem A 2015; 119:9692-702. [DOI: 10.1021/acs.jpca.5b04812] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sidsel D. Schrøder
- Department
of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
| | - Jens H. Wallberg
- Department
of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
| | - Jay A. Kroll
- Department
of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309-0215, United States
- Cooperative Institute for Research in Environmental Sciences, Boulder, Colorado 80309, United States
| | - Zeina Maroun
- Department
of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
| | - Veronica Vaida
- Department
of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309-0215, United States
- Cooperative Institute for Research in Environmental Sciences, Boulder, Colorado 80309, United States
| | - Henrik G. Kjaergaard
- Department
of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
| |
Collapse
|
29
|
Mackeprang K, Hänninen V, Halonen L, Kjaergaard HG. The effect of large amplitude motions on the vibrational intensities in hydrogen bonded complexes. J Chem Phys 2015; 142:094304. [DOI: 10.1063/1.4913737] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
30
|
da Cunha WF, de Oliveira RM, Roncaratti LF, Martins JBL, e Silva GM, Gargano R. Rovibrational energies and spectroscopic constants for H2O-Ng complexes. J Mol Model 2014; 20:2498. [PMID: 25425286 DOI: 10.1007/s00894-014-2498-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Accepted: 10/13/2014] [Indexed: 11/28/2022]
Abstract
In this work, rovibrational energies and spectroscopic constants for the water -Ng complexes (Ng = He, Ne, Ar, Kr and Xe) were calculated through two different approaches (by solving the Nuclear Schrödinger equation and by applying the Dunham's method) and using two different potential energy curves (PEC). These PEC were determined using potential parameters obtained through molecular beam scattering experiments and accurate theoretical calculation, respectively. It was found that the theoretical rovibrational energies are in a good agreement (only for the lowest numbers of vibrational states) with those obtained through experimental PEC. Another important conclusions was regarding the calculated first two rovibrational energies for the H 2 O-Ar system, that are in a good agreement with the experimental data.
Collapse
Affiliation(s)
- Wiliam F da Cunha
- Institute of Physics, University of Brasilia, CP 4455, Brasilia, 70919-970, Brazil
| | | | | | | | | | | |
Collapse
|
31
|
Mackeprang K, Kjaergaard HG, Salmi T, Hänninen V, Halonen L. The effect of large amplitude motions on the transition frequency redshift in hydrogen bonded complexes: A physical picture. J Chem Phys 2014; 140:184309. [DOI: 10.1063/1.4873420] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
32
|
Leforestier C. Water dimer equilibrium constant calculation: A quantum formulation including metastable states. J Chem Phys 2014; 140:074106. [DOI: 10.1063/1.4865339] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
|
33
|
Bork N, Du L, Kjaergaard HG. Identification and Characterization of the HCl–DMS Gas Phase Molecular Complex via Infrared Spectroscopy and Electronic Structure Calculations. J Phys Chem A 2014; 118:1384-9. [DOI: 10.1021/jp411567x] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nicolai Bork
- Department
of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
- Department
of Physics, University of Helsinki, FI-00014 Helsinki, Finland
| | - 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
| |
Collapse
|
34
|
Ellington TL, Tschumper GS. Anchoring the potential energy surface of the nitrogen/water dimer, N2⋯H2O, with explicitly correlated coupled-cluster computations. COMPUT THEOR CHEM 2013. [DOI: 10.1016/j.comptc.2013.06.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
35
|
Thomsen DL, Axson JL, Schrøder SD, Lane JR, Vaida V, Kjaergaard HG. Intramolecular Interactions in 2-Aminoethanol and 3-Aminopropanol. J Phys Chem A 2013; 117:10260-73. [DOI: 10.1021/jp405512y] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ditte L. Thomsen
- Department
of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark
| | - Jessica L. Axson
- Department
of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309-0215, United States
- Cooperative Institute for Research in Environmental Sciences, Boulder, Colorado 80309, United States
| | - Sidsel D. Schrøder
- Department
of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark
| | - Joseph R. Lane
- Department
of Chemistry, University of Waikato, Private Bag 3105, Hamilton 3240, New Zealand
| | - Veronica Vaida
- Department
of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309-0215, United States
- Cooperative Institute for Research in Environmental Sciences, Boulder, Colorado 80309, United States
| | - Henrik G. Kjaergaard
- Department
of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark
| |
Collapse
|
36
|
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.
Collapse
Affiliation(s)
- Solvejg Jørgensen
- Department of Chemistry, University of Copenhagen, Copenhagen O, Denmark.
| | | | | | | |
Collapse
|
37
|
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).
Collapse
Affiliation(s)
- Lin Du
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
| | | | | |
Collapse
|
38
|
Didriche K, Földes T. High resolution spectroscopy of the Ar-D2O and Ar-HDO molecular complexes in the near-infrared range. J Chem Phys 2013; 138:104307. [DOI: 10.1063/1.4794161] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
39
|
Fawzy WM, Elsayed M, Zhang Y. Correlated ab initio investigations on the intermolecular and intramolecular potential energy surfaces in the ground electronic state of the O2(-)(X2Πg)-HF(X1Σ+) complex. J Chem Phys 2013; 138:014304. [PMID: 23298038 DOI: 10.1063/1.4772653] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
This work reports the first highly correlated ab initio study of the intermolecular and intramolecular potential energy surfaces in the ground electronic state of the O(2)(-)(X(2)Π(g))-HF(X(1)Σ(+)) complex. Accurate electronic structure calculations were performed using the coupled cluster method including single and double excitations with addition of the perturbative triples correction [CCSD(T)] with the Dunning's correlation consistent basis sets aug-cc-pVnZ, n = 2-5. Also, the explicitly correlated CCSD(T)-F12a level of theory was employed with the AVnZ basis as well as the Peterson and co-workers VnZ-F12 basis sets with n = 2 and 3. Results of all levels of calculations predicted two equivalent minimum energy structures of planar geometry and C(s) symmetry along the A" surface of the complex, whereas the A' surface is repulsive. Values of the geometrical parameters and the counterpoise corrected dissociation energies (Cp-D(e)) that were calculated using the CCSD(T)-F12a/VnZ-F12 level of theory are in excellent agreement with those obtained from the CCSD(T)/aug-cc-pV5Z calculations. The minimum energy structure is characterized by a very short hydrogen bond of length of 1.328 Å, with elongation of the HF bond distance in the complex by 0.133 Å, and D(e) value of 32.313 Kcal/mol. Mulliken atomic charges showed that 65% of the negative charge is localized on the hydrogen bonded end of the superoxide radical and the HF unit becomes considerably polarized in the complex. These results suggest that the hydrogen bond is an incipient ionic bond. Exploration of the potential energy surface confirmed the identified minimum and provided support for vibrationally induced intramolecular proton transfer within the complex. The T-shaped geometry that possesses C(2v) symmetry presents a saddle point on the top of the barrier to the in-plane bending of the hydrogen above and below the axis that connects centers of masses of the monomers. The height of this barrier is 7.257 Kcal/mol, which is higher in energy than the hydrogen bending frequency by 909.2 cm(-1). The calculated harmonic oscillator vibrational frequencies showed that the H-F stretch vibrational transition in the complex is redshifted by 2564 cm(-1) and gained significant intensity (by at least a factor of 30) with respect to the transition in the HF monomer. These results make the O(2)(-)-HF complex an excellent prototype for infrared spectroscopic investigations on open-shell complexes with vibrationally induced proton transfer.
Collapse
Affiliation(s)
- Wafaa M Fawzy
- Department of Chemistry, Murray State University, 1201 Jesse D. Jones Hall, Murray, Kentucky 42071, USA.
| | | | | |
Collapse
|
40
|
Acocella A, Jones GA, Zerbetto F. Excitation Energy Transfer and Low-Efficiency Photolytic Splitting of Water Ice by Vacuum UV Light. J Phys Chem Lett 2012; 3:3610-3615. [PMID: 26290996 DOI: 10.1021/jz301640h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Experimental estimates of photolytic efficiency (yield per photon) for photodissociation and photodesorption from water ice range from about 10(-3) to 10(-1). However, in the case of photodissociation of water in the gas phase, it is close to unity. Exciton dynamics carried out by a quantum mechanical time-dependent propagator shows that in the eight most stable water hexamers, the excitation diffuses away from the initially excited molecule within a few femtoseconds. On the basis of these quantum dynamics simulations, it is hypothesized that the ultrafast exciton energy transfer process, which in general gives rise to a delocalized exciton within these clusters, may contribute to the low efficiency of photolytic processes in water ice. It is proposed that exciton diffusion inherently competes with the nuclear dynamics that drives the photodissociation process in the repulsive S1 state on the sub-10 fs time scale.
Collapse
Affiliation(s)
- Angela Acocella
- †Dipartimento di Chimica "G. Ciamician", Università di Bologna, V. F. Selmi 2, 40126 Bologna, Italy
| | - Garth A Jones
- ‡School of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, United Kingdom
| | - Francesco Zerbetto
- †Dipartimento di Chimica "G. Ciamician", Università di Bologna, V. F. Selmi 2, 40126 Bologna, Italy
| |
Collapse
|
41
|
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.
Collapse
Affiliation(s)
- Lin Du
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
| | | | | |
Collapse
|
42
|
Baranov YI, Buryak IA, Lokshtanov SE, Lukyanchenko VA, Vigasin AA. H(2)O--N(2) collision-induced absorption band intensity in the region of the N(2) fundamental: ab initio investigation of its temperature dependence and comparison with laboratory data. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2012; 370:2691-2709. [PMID: 22547239 DOI: 10.1098/rsta.2011.0189] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The present paper aims at ab initio and laboratory evaluation of the N(2) collision-induced absorption band intensity arising from interactions between N(2) and H(2)O molecules at wavelengths of around 4 μm. Quantum chemical calculations were performed in the space of five intermolecular coordinates and varying N--N bond length using Møller-Plesset perturbation and CCSD(T) methods with extrapolation of the electronic energy to the complete basis set. This made it possible to construct the intermolecular potential energy surface and to define the surface of the N--N dipole derivative with respect to internal coordinate. The intensity of the nitrogen fundamental was then calculated as a function of temperature using classical integration. Experimental spectra were recorded with a BOMEM DA3-002 FTIR spectrometer and 2 m base-length multipass White cell. Measurements were conducted at temperatures of 326, 339, 352 and 363 K. The retrieved water-nitrogen continuum significantly deviates from the MT_CKD model because the relatively strong nitrogen absorption induced by H(2)O was not included in this model. Substantial uncertainties in the measurements of the H(2)O-N(2) continuum meant that quantification of any temperature dependence was not possible. The comparison of the integrated N(2) fundamental band intensity with our theoretical estimates shows reasonably good agreement. Theory indicates that the intensity as a function of temperature has a minimum at approximately 500 K.
Collapse
Affiliation(s)
- Yu I Baranov
- Institute of Experimental Meteorology, 4 Pobedy Street, Kaluzhskaya Oblast, Obninsk 249038, Russia
| | | | | | | | | |
Collapse
|
43
|
Ptashnik IV, McPheat RA, Shine KP, Smith KM, Williams RG. Water vapour foreign-continuum absorption in near-infrared windows from laboratory measurements. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2012; 370:2557-2577. [PMID: 22547232 DOI: 10.1098/rsta.2011.0218] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
For a long time, it has been believed that atmospheric absorption of radiation within wavelength regions of relatively high infrared transmittance (so-called 'windows') was dominated by the water vapour self-continuum, that is, spectrally smooth absorption caused by H(2)O--H(2)O pair interaction. Absorption due to the foreign continuum (i.e. caused mostly by H(2)O--N(2) bimolecular absorption in the Earth's atmosphere) was considered to be negligible in the windows. We report new retrievals of the water vapour foreign continuum from high-resolution laboratory measurements at temperatures between 350 and 430 K in four near-infrared windows between 1.1 and 5 μm (9000-2000 cm(-1)). Our results indicate that the foreign continuum in these windows has a very weak temperature dependence and is typically between one and two orders of magnitude stronger than that given in representations of the continuum currently used in many climate and weather prediction models. This indicates that absorption owing to the foreign continuum may be comparable to the self-continuum under atmospheric conditions in the investigated windows. The calculated global-average clear-sky atmospheric absorption of solar radiation is increased by approximately 0.46 W m(-2) (or 0.6% of the total clear-sky absorption) by using these new measurements when compared with calculations applying the widely used MTCKD (Mlawer-Tobin-Clough-Kneizys-Davies) foreign-continuum model.
Collapse
Affiliation(s)
- Igor V Ptashnik
- Department of Meteorology, University of Reading, Earley Gate, PO Box 243, Reading RG6 6BB, UK.
| | | | | | | | | |
Collapse
|
44
|
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
|
45
|
Abstract
Unique among small molecules, water forms a nearly tetrahedral yet flexible hydrogen-bond network. In addition to its flexibility, this network is dynamic: bonds are formed or broken on a picosecond time scale. These unique features make probing the local structure of water challenging. Despite the challenges, there is intense interest in developing a picture of the local water structure due to water's fundamental importance in many fields of chemistry. Understanding changes in the local network structure of water near solutes likely holds the key to unlock problems from analyzing parameters that determine the three dimensional structure of proteins to modeling the fate of volatile materials released into the atmosphere. Pictures of the local structure of water are heavily influenced by what is known about the structure of ice. In hexagonal I(h) ice, the most stable form of solid water under ordinary conditions, water has an equal number of donor and acceptor bonds; a kind of symmetry. This symmetric tetrahedral coordination is only approximately preserved in the liquid. The most obvious manifestation of this altered tetrahedral bonding is the greater density in the liquid compared with the solid. Formation of an interface or addition of solutes further modifies the local bonding in water. Because the O-H stretching frequency is sensitive to the environment, vibrational spectroscopy provides an excellent probe for the hydrogen-bond structure in water. In this Account, we examine both local interactions between water and small solutes and longer range interactions at the aqueous surface. Locally, the results suggest that water is not a symmetric donor or acceptor, but rather has a propensity to act as an acceptor. In interactions with hydrocarbons, action is centered at the water oxygen. For soluble inorganic salts, interaction is greater with the cation than the anion. The vibrational spectrum of the surface of salt solutions is altered compared with that of neat water. Studies of local salt-water interactions suggest that the picture of the local water structure and the ion distribution at the surface deduced from the surface vibrational spectrum should encompass both ions of the salt.
Collapse
Affiliation(s)
- Mary Jane Shultz
- Laboratory for Water and Surface Studies, Chemistry Department, Pearson Building, Tufts University, Medford, Massachusetts 02155, United States
| | - Tuan Hoang Vu
- Laboratory for Water and Surface Studies, Chemistry Department, Pearson Building, Tufts University, Medford, Massachusetts 02155, United States
| | - Bryce Meyer
- Laboratory for Water and Surface Studies, Chemistry Department, Pearson Building, Tufts University, Medford, Massachusetts 02155, United States
| | - Patrick Bisson
- Laboratory for Water and Surface Studies, Chemistry Department, Pearson Building, Tufts University, Medford, Massachusetts 02155, United States
| |
Collapse
|
46
|
Fawzy WM. Ab Initio Study of the Intermolecular Potential Energy Surface in the Ion-Induced-Dipole Hydrogen-Bonded O2–(X2Πg)–H2(X1Σg+) Complex. J Phys Chem A 2012; 116:1069-76. [DOI: 10.1021/jp2088753] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wafaa M. Fawzy
- Department of Chemistry, Murray State University, 1201 Jesse D. Jones Hall, Murray, Kentucky 42071, United States
| |
Collapse
|
47
|
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]
|
48
|
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
| |
Collapse
|
49
|
Garden AL, Halonen L, Kjaergaard HG. Widening of the hydrogen bonded OH-streching bands due to the wagging and OO-stretching modes in H2O·H2O. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2011.07.051] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
50
|
Affiliation(s)
- Veronica Vaida
- Department of Chemistry and Biochemistry, CIRES, University of Colorado, Boulder, Colorado 80309-0215, USA
| |
Collapse
|