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Barclay AJ, McKellar ARW, Moazzen-Ahmadi N. Spectra of the D2O dimer in the O-D fundamental stretch region: The acceptor symmetric stretch fundamental and new combination bands. J Chem Phys 2024; 160:114314. [PMID: 38501472 DOI: 10.1063/5.0200892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 02/27/2024] [Indexed: 03/20/2024] Open
Abstract
The O-D stretch fundamental region of the deuterated water dimer, (D2O)2, is further studied using a pulsed supersonic slit jet and a tunable optical parametric oscillator infrared source. The previously unobserved acceptor symmetric O-D stretch fundamental vibration is detected, with Ka = 0 ← 0 and 1 ← 0 sub-bands at about 2669 and 2674 cm-1, respectively. The analysis indicates that the various water dimer tunneling splittings generally decrease in the excited vibrational state, similar to the three other previously observed O-D stretch fundamentals. Two new (D2O)2 combination bands are observed, giving information on intermolecular vibrations in the excited O-D stretch states. The likely vibrational assignments for these and a previously observed combination band are discussed.
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Affiliation(s)
- A J Barclay
- Department of Physics and Astronomy, University of Calgary, 2500 University Drive North West, Calgary, Alberta T2N 1N4, Canada
| | - A R W McKellar
- National Research Council of Canada, Ottawa, Ontario K1A 0R6, Canada
| | - N Moazzen-Ahmadi
- Department of Physics and Astronomy, University of Calgary, 2500 University Drive North West, Calgary, Alberta T2N 1N4, Canada
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2
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Vogt E, Simkó I, Császár AG, Kjaergaard HG. Quantum Chemical Investigation of the Cold Water Dimer Spectrum in the First OH-Stretching Overtone Region Provides a New Interpretation. J Phys Chem A 2023; 127:9409-9418. [PMID: 37930939 DOI: 10.1021/acs.jpca.3c03705] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
Intramolecular vibrational transition wavenumbers and intensities were calculated in the fundamental HOH-bending, fundamental OH-stretching, first OH-stretching-HOH-bending combination, and first OH-stretching overtone (ΔvOH = 2) regions of the water dimer's spectrum. Furthermore, the rotational-vibrational spectrum was calculated in the ΔvOH = 2 region at 10 K, corresponding to the temperature of the existing jet-expansion experiments. The calculated spectrum was obtained by combining results from a full-dimensional (12D) vibrational and a reduced-dimensional vibrational-rotational-tunneling model. The ΔvOH = 2 spectral region is rich in features due to contributions from multiple vibrational-rotational-tunneling sub-bands. Origins of the experimental vibrational bands depend on the assignment of the observed sub-bands. Based on our calculations, we assign the observed sub-bands, and our reassignment leads to new values for the vibrational band origins of the free donor and antisymmetric acceptor OH-stretching first overtones of ∼7227 and ∼7238 cm-1, respectively. The observed bands with origins at 7192.34 and ∼7366 cm-1 are assigned to the symmetric acceptor OH-stretching first overtone and the OH-stretching combination of the donor, respectively.
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Affiliation(s)
- Emil Vogt
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, Copenhagen Ø DK-2100, Denmark
| | - Irén Simkó
- Laboratory of Molecular Structure and Dynamics, Institute of Chemistry ELTE Eötvös Loránd University, Pázmány Péter Sétány 1/A, Budapest H-1117, Hungary
- HUN-REN-ELTE Complex Chemical Systems Research Group, P.O. Box 32, Budapest 112 H-1518, Hungary
| | - Attila G Császár
- Laboratory of Molecular Structure and Dynamics, Institute of Chemistry ELTE Eötvös Loránd University, Pázmány Péter Sétány 1/A, Budapest H-1117, Hungary
- HUN-REN-ELTE Complex Chemical Systems Research Group, P.O. Box 32, Budapest 112 H-1518, Hungary
| | - Henrik G Kjaergaard
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, Copenhagen Ø DK-2100, Denmark
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3
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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.
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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
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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: 11] [Impact Index Per Article: 5.5] [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.
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Affiliation(s)
- Emil Vogt
- Department of Chemistry, University of Copenhagen, Copenhagen, Denmark;
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Lauzin C, Imbreckx AC, Foldes T, Vanfleteren T, Moazzen-Ahmadi N, Herman M. High-resolution spectroscopic study of the H2O–CO2 van der Waals complex in the 2OH overtone range. Mol Phys 2019. [DOI: 10.1080/00268976.2019.1706776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- C. Lauzin
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, Louvain-la-Neuve, Belgium
| | - A. C. Imbreckx
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, Louvain-la-Neuve, Belgium
| | - T. Foldes
- Service de Chimie quantique et Photophysique, Faculté des Sciences, Université Libre de Bruxelles, Brussels, Belgium
| | - T. Vanfleteren
- Service de Chimie quantique et Photophysique, Faculté des Sciences, Université Libre de Bruxelles, Brussels, Belgium
| | - N. Moazzen-Ahmadi
- Department of Physics and Astronomy, University of Calgary, Calgary, Canada
| | - M. Herman
- Service de Chimie quantique et Photophysique, Faculté des Sciences, Université Libre de Bruxelles, Brussels, Belgium
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Barclay AJ, McKellar ARW, Moazzen-Ahmadi N. Spectra of the D 2O dimer in the O-D fundamental stretch region: Vibrational dependence of tunneling splittings and lifetimes. J Chem Phys 2019; 150:164307. [PMID: 31042915 DOI: 10.1063/1.5092503] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The fundamental O-D stretch region (2600-2800 cm-1) of the fully deuterated water dimer (D2O)2 is studied using a pulsed supersonic slit jet source and a tunable optical parametric oscillator source. Relatively high spectral resolution (0.002 cm-1) enables all six dimer tunneling components to be observed, in most cases, for the acceptor asymmetric O-D stretch, the donor free O-D stretch, and the donor bound O-D stretch vibrations. The dominant acceptor switching tunneling splittings are observed to decrease moderately in the excited O-D stretch states, to roughly 75% of their ground state values, whereas the smaller donor-acceptor interchange splittings show more dramatic and irregular decreases. Excited state predissociation lifetimes, as determined from the observed line broadening, show large variations (0.2 ≤ τ ≤ 5 ns) depending on the vibrational state, K-value, and tunneling symmetry. Another very weak band is tentatively assigned to a combination mode involving an intramolecular O-D stretch plus an intermolecular twist overtone. Asymmetric O-D stretch bands of the mixed isotopologue dimers D2O-DOH and D2O-HOD are also observed and analyzed.
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Affiliation(s)
- A J Barclay
- Department of Physics and Astronomy, University of Calgary, 2500 University Drive North West, Calgary, Alberta T2N 1N4, Canada
| | - A R W McKellar
- National Research Council of Canada, Ottawa, Ontario K1A 0R6, Canada
| | - N Moazzen-Ahmadi
- Department of Physics and Astronomy, University of Calgary, 2500 University Drive North West, Calgary, Alberta T2N 1N4, Canada
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Manca Tanner C, Quack M, Schmidiger D. Nuclear spin symmetry conservation and relaxation of water (H216O) seeded in supersonic jets of argon and oxygen: measurements by cavity ring-down laser spectroscopy. Mol Phys 2018. [DOI: 10.1080/00268976.2018.1484952] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
| | - Martin Quack
- Laboratorium für Physikalische Chemie, ETH Zürich, Zürich, Switzerland
| | - David Schmidiger
- Laboratorium für Physikalische Chemie, ETH Zürich, Zürich, Switzerland
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Vanfleteren T, Földes T, Herman M, Liévin J, Loreau J, Coudert LH. Experimental and theoretical investigations of H 2O-Ar. J Chem Phys 2018; 147:014302. [PMID: 28688396 DOI: 10.1063/1.4990738] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We have used continuous-wave cavity ring-down spectroscopy to record the spectrum of H2O-Ar in the 2OH excitation range of H2O. 24 sub-bands have been observed. Their rotational structure (Trot = 12 K) is analyzed and the lines are fitted separately for ortho and para species together with microwave and far infrared data from the literature, with a unitless standard deviation σ=0.98 and 1.31, respectively. Their vibrational analysis is supported by a theoretical input based on an intramolecular potential energy surface obtained through ab initio calculations and computation of the rotational energy of sub-states of the complex with the water monomer in excited vibrational states up to the first hexad. For the ground and (010) vibrational states, the theoretical results agree well with experimental energies and rotational constants in the literature. For the excited vibrational states of the first hexad, they guided the assignment of the observed sub-bands. The upper state vibrational predissociation lifetime is estimated to be 3 ns from observed spectral linewidths.
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Affiliation(s)
- Thomas Vanfleteren
- Service de Chimie Quantique et Photophysique, CP160/09, Faculté des Sciences, Université Libre de Bruxelles, 50, Ave., Roosevelt B-1050, Belgium
| | - Tomas Földes
- Service de Chimie Quantique et Photophysique, CP160/09, Faculté des Sciences, Université Libre de Bruxelles, 50, Ave., Roosevelt B-1050, Belgium
| | - Michel Herman
- Service de Chimie Quantique et Photophysique, CP160/09, Faculté des Sciences, Université Libre de Bruxelles, 50, Ave., Roosevelt B-1050, Belgium
| | - Jacques Liévin
- Service de Chimie Quantique et Photophysique, CP160/09, Faculté des Sciences, Université Libre de Bruxelles, 50, Ave., Roosevelt B-1050, Belgium
| | - Jérôme Loreau
- Service de Chimie Quantique et Photophysique, CP160/09, Faculté des Sciences, Université Libre de Bruxelles, 50, Ave., Roosevelt B-1050, Belgium
| | - Laurent H Coudert
- Institut des Sciences Moléculaires d'Orsay (ISMO), CNRS, Université Paris-Sud, Université Paris-Saclay, F-91405 Orsay, France
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9
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Ignaczak A, Santos E, Schmickler W, da Costa TF. Oxidation of oxalic acid on boron-doped diamond electrode in acidic solutions. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2017.11.036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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10
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Herman M, Földes T, Didriche K, Lauzin C, Vanfleteren T. Overtone spectroscopy of molecular complexes containing small polyatomic molecules. INT REV PHYS CHEM 2016. [DOI: 10.1080/0144235x.2016.1171039] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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