1
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Reynolds AJ, Leopold KR. Partial Proton Transfer in the Gas Phase: A Spectroscopic and Computational Analysis of the Trifluoroacetic Acid - Trimethylamine Complex. J Phys Chem A 2023; 127:10632-10637. [PMID: 38078922 DOI: 10.1021/acs.jpca.3c06768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2023]
Abstract
The 1:1 complex formed from trifluoroacetic acid (TFA) and trimethylamine (TMA) has been observed in the gas phase by rotational spectroscopy and further investigated by DFT and MP2 methods. Spectra of both the parent form and the -OD isotopologue have been obtained. The complex is structurally similar to a hydrogen bonded system, with the O-H bond directed toward the nitrogen of the TMA. However, both the spectroscopic and computational results indicate that it is intermediate between a hydrogen bonded complex and a proton-transferred ion pair. Two metrics are used to assess the degree of proton transfer from the acid to the base. The first is based on experimental 14N nuclear quadrupole coupling constants. Specifically, the component of the 14N nuclear quadrupole coupling tensor along the c-inertial axis of the complex, χcc, is 31% of the way between that of free TMA (no proton transfer) and that of TMAH+ (complete proton transfer). A second metric, adapted from that of Kurnig and Scheiner [Int. J. Quantum Chem. Quantum Biol. Symp. 1987, 14, 47-56], is based on calculated O-H and H-N distances and corroborates this description. These results indicate that the degree of proton transfer in TFA-TMA is very similar to that in the TMA complex of HNO3, which has been previously studied and for which the proton affinity of the conjugate anion (NO3-) is almost identical to that of CF3COO-. While the solid salt, TMAH+·CF3COO-, is an ionic plastic above 307 K and exhibits free rotation of the ions, no such motion is observed in the cold 1:1 gas phase adduct.
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Affiliation(s)
- Aaron J Reynolds
- Department of Chemistry, University of Minnesota, 207 Pleasant Street, SE, Minneapolis, Minnesota 55455, United States
| | - Kenneth R Leopold
- Department of Chemistry, University of Minnesota, 207 Pleasant Street, SE, Minneapolis, Minnesota 55455, United States
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2
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Salvitti G, Baroncelli F, Nicotri C, Evangelisti L, Melandri S, Maris A. How Water Interacts with the NOH Group: The Rotational Spectrum of the 1:1 N,N-diethylhydroxylamine·Water Complex. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238190. [PMID: 36500289 PMCID: PMC9737918 DOI: 10.3390/molecules27238190] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 11/20/2022] [Accepted: 11/22/2022] [Indexed: 11/27/2022]
Abstract
The rotational spectrum of the 1:1 N,N-diethylhydroxylamine-water complex has been investigated using pulsed jet Fourier transform microwave spectroscopy in the 6.5-18.5 GHz frequency region. The most stable conformer has been detected as well as the 13C monosubstituted isotopologues in natural abundance and the 18O enriched water species, allowing to determine the nitrogen nuclear quadrupole coupling constants and the molecular structure in the vibrational ground state. The molecule has a Cs symmetry and the water lies in the bc symmetry plane forming two hydrogen bonds with the NOH frame with length: dHOH·NOH = 1.974 Å and dH2O·HON = 2.096 Å. From symmetry-adapted perturbation theory calculations coupled to atoms in molecule approach, the corresponding interaction energy values are estimated to be 24 and 13 kJ·mol-1, respectively. The great strength of the intermolecular interaction involving the nitrogen atom is in agreement with the high reactivity of hydroxylamine compounds at the nitrogen site.
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Affiliation(s)
- Giovanna Salvitti
- Department of Chemistry “G. Ciamician”, University of Bologna, 40126 Bologna, Italy
| | - Filippo Baroncelli
- Department of Chemistry “G. Ciamician”, University of Bologna, 40126 Bologna, Italy
| | - Chiara Nicotri
- Department of Chemistry “G. Ciamician”, University of Bologna, 40126 Bologna, Italy
| | - Luca Evangelisti
- Department of Chemistry “G. Ciamician”, Campus of Ravenna, University of Bologna, 48123 Ravenna, Italy
- Interdepartmental Centre for Industrial Aerospace Research (CIRI Aerospace), University of Bologna, 47121 Forlì, Italy
- Interdepartmental Centre for Industrial Agrifood Research (CIRI Agrifood), University of Bologna, 47521 Cesena, Italy
| | - Sonia Melandri
- Department of Chemistry “G. Ciamician”, University of Bologna, 40126 Bologna, Italy
- Interdepartmental Centre for Industrial Aerospace Research (CIRI Aerospace), University of Bologna, 47121 Forlì, Italy
- Interdepartmental Centre for Industrial Agrifood Research (CIRI Agrifood), University of Bologna, 47521 Cesena, Italy
| | - Assimo Maris
- Department of Chemistry “G. Ciamician”, University of Bologna, 40126 Bologna, Italy
- Interdepartmental Centre for Industrial Aerospace Research (CIRI Aerospace), University of Bologna, 47121 Forlì, Italy
- Correspondence: ; Tel.: +39-051-2099502
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3
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Li GB, Cai SH, Long B. New Reactions for the Formation of Organic Nitrate in the Atmosphere. ACS OMEGA 2022; 7:39671-39679. [PMID: 36385897 PMCID: PMC9647854 DOI: 10.1021/acsomega.2c03321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 09/30/2022] [Indexed: 05/24/2023]
Abstract
Organic nitrates make an important contribution to the formation of secondary organic aerosols, but the formation mechanisms of organic nitrates are not fully understood at the molecular level. In the present work, we explore a new route for the formation of organic nitrates in the reaction of formaldehyde (HCHO) with nitric acid (HNO3) catalyzed by water (H2O), ammonia (NH3), and dimethylamine ((CH3)2NH) using theoretical methods. The present results using CCSD(T)-F12a/cc-pVTZ-F12//M06-2X/MG3S unravel that dimethylamine has a stronger catalytic ability in the reaction of HCHO with HNO3, reducing the barrier by 21.97 kcal/mol, while water and ammonia only decrease the energy barrier by 7.35 and 13.56 kcal/mol, respectively. In addition, the calculated kinetics combined with the corresponding concentrations of these species show that the HCHO + HNO3 + (CH3)2NH reaction can compete well with the naked HCHO + HNO3 reaction at 200-240 K, which may make certain contributions to the formation of organic nitrates under some atmospheric conditions.
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Affiliation(s)
- Gang-Biao Li
- Department
of Physics, Guizhou University, Guiyang550025, China
| | - Shao-Hong Cai
- Department
of Physics, Guizhou University, Guiyang550025, China
| | - Bo Long
- Department
of Physics, Guizhou University, Guiyang550025, China
- College
of Materials Science and Engineering, Guizhou
Minzu university, Guiyang550025, China
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4
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Carlson CD, Hazrah AS, Mason D, Yang Q, Seifert NA, Xu Y. Alternating 1-Phenyl-2,2,2-Trifluoroethanol Conformational Landscape With the Addition of One Water: Conformations and Large Amplitude Motions. J Phys Chem A 2022; 126:7250-7260. [PMID: 36191084 DOI: 10.1021/acs.jpca.2c05803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The 1:1 adduct of 1-phenyl-2,2,2-trifluoroethanol (PhTFE), a chiral fluoroalcohol, with water was investigated using chirped pulse Fourier transform microwave spectroscopy and computational methods. While PhTFE itself was predicted to have three minima, I (gauche+), II (trans), and III (gauche-), only I and II were stable and only I was observed experimentally. A systematic search of the PhTFE···H2O conformational landscape identified 110 stable minima, 14 of which are within a 15 kJ mol-1 energy window. Rotational spectra of the two PhTFE···H2O conformers along with several deuterium and 18O isotopologues were assigned, and the isotopic data were used to verify the corresponding structures. In the two observed monohydrate conformers, one contains PhTFE I where the water subunit is inserted into the existing intramolecular OH···F contact of I, and the binary adduct is stabilized by two intermolecular contacts: OH···OW and HW···F, whereas the other contains PhTFE II where the water subunit interacts with both the alcohol hydrogen and phenyl ring of II, demonstrating that interaction with water sufficiently stabilizes II for its observation in a jet expansion. Interestingly, the predicted electric dipole moment components at the identified minima deviate considerably from the experimental ones. Such deviations were analyzed in terms of dynamic effects associated with the large amplitude motions of the unbound HW. In addition, tunnelling effects associated with the exchange of the bonded and nonbonded HW were also discussed.
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Affiliation(s)
- Colton D Carlson
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Arsh S Hazrah
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Daniel Mason
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Qian Yang
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Nathan A Seifert
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada.,Department of Chemistry and Chemical & Biomedical Engineering, University of New Haven, 300 Boston Post Rd, West Haven, Connecticut 06516, United States
| | - Yunjie Xu
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
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5
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Muslim M, Kamaal S, Mehkoom M, Jane Alam M, Afzal SM, Ahmad M. A Proton‐Transfer Complex Containing 5‐Hydroxy‐isophthalic Acid with 3,3′‐(Piperazine‐1,4‐diylbis (methylene)) Dibenzonitrile: Structural Topology, Hirshfeld Analysis, NLO, and DFT Studies. ChemistrySelect 2021. [DOI: 10.1002/slct.202101640] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Mohd Muslim
- Department of Applied Chemistry Faculty of Engineering and Technology ZHCET Aligarh Muslim University Aligarh U.P-202002 India
| | - Saima Kamaal
- Department of Applied Chemistry Faculty of Engineering and Technology ZHCET Aligarh Muslim University Aligarh U.P-202002 India
| | - Mohd Mehkoom
- Department of Physics, Faculty of Science Aligarh Muslim University Aligarh U.P-202002 India
| | - Mohammad Jane Alam
- Department of Physics, Faculty of Science Aligarh Muslim University Aligarh U.P-202002 India
| | - S. M. Afzal
- Department of Physics, Faculty of Science Aligarh Muslim University Aligarh U.P-202002 India
| | - Musheer Ahmad
- Department of Applied Chemistry Faculty of Engineering and Technology ZHCET Aligarh Muslim University Aligarh U.P-202002 India
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6
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Huff AK, Love N, Leopold KR. Microwave Study of Triflic Acid Hydrates: Evidence for the Transition from Hydrogen-Bonded Clusters to a Microsolvated Ion Pair. J Phys Chem A 2021; 125:8033-8046. [PMID: 34478288 DOI: 10.1021/acs.jpca.1c06815] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Rotational spectra of the mono-, di-, and trihydrates of triflic acid, CF3SO3H···(H2O)n=1-3, have been recorded by pulsed nozzle Fourier transform microwave spectroscopy and spectroscopic constants obtained have been compared with values calculated at several levels of theory. The experimental results are consistent with the theoretical predictions presented here and elsewhere, indicating that with only one or two water molecules, triflic acid remains un-ionized in a cold molecular complex. The experiments further concur with theoretical predictions that the addition of a third water molecule transforms the system into what is best regarded as a hydrated hydronium triflate ion pair. Thus, only three water molecules are needed to induce ionization of triflic acid in a cold molecular cluster. This number is somewhat low compared with that for other simple protic acids and likely reflects the superacidity of triflic acid. Simple energetic arguments can be used to rationalize this result.
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Affiliation(s)
- Anna K Huff
- Department of Chemistry, University of Minnesota, 207 Pleasant Street, SE, Minneapolis, Minnesota 55455, United States
| | - Nathan Love
- Department of Chemistry, University of Minnesota, 207 Pleasant Street, SE, Minneapolis, Minnesota 55455, United States
| | - Kenneth R Leopold
- Department of Chemistry, University of Minnesota, 207 Pleasant Street, SE, Minneapolis, Minnesota 55455, United States
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7
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Love N, Huff AK, Leopold KR. Proton Transfer in a Bare Superacid-Amine Complex: A Microwave and Computational Study of Trimethylammonium Triflate. J Phys Chem A 2021; 125:5061-5068. [PMID: 34096305 DOI: 10.1021/acs.jpca.1c03345] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The complex formed from trimethylamine ((CH3)3N) and trifluoromethanesulfonic acid (triflic acid, CF3SO3H) has been observed by Fourier transform microwave spectroscopy in a supersonic jet. Spectroscopic data, most notably 14N nuclear quadrupole coupling constants, are combined with computational results at several levels of theory to unambiguously demonstrate complete or near-complete proton transfer from the triflic acid to the trimethylamine upon complexation. Thus, the system is best regarded as a trimethylammonium triflate ion pair in the gas phase. The formation of an isolated ion pair in a 1:1 complex of a Brønsted acid and base is unusual and likely arises due to the strong acidity of triflic acid. Simple energetic arguments based on proton affinities and the Coulomb interaction energy can be used to rationalize this result.
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Affiliation(s)
- Nathan Love
- Department of Chemistry, University of Minnesota, 207 Pleasant St. SE, Minneapolis, Minnesota 55455, United States
| | - Anna K Huff
- Department of Chemistry, University of Minnesota, 207 Pleasant St. SE, Minneapolis, Minnesota 55455, United States
| | - Kenneth R Leopold
- Department of Chemistry, University of Minnesota, 207 Pleasant St. SE, Minneapolis, Minnesota 55455, United States
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8
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Mitra S, Yang N, McCaslin LM, Gerber RB, Johnson MA. Size-Dependent Onset of Nitric Acid Dissociation in Cs +·(HNO 3)(H 2O) n=0-11 Clusters at 20 K. J Phys Chem Lett 2021; 12:3335-3342. [PMID: 33779169 DOI: 10.1021/acs.jpclett.1c00235] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We report the water-mediated charge separation of nitric acid upon incorporation into size-selected Cs+·(HNO3)(H2O)n=0-11 clusters at 20 K. Dramatic spectral changes are observed in the n = 7-9 range that are traced to the formation of many isomeric structures associated with intermediate transfer of the acidic proton to the water network. This transfer is complete by n = 10, which exhibits much simpler vibrational band patterns consistent with those expected for a tricoordinated hydronium ion (the Eigen motif) along with the NO stretching bands predicted for a hydrated NO3- anion that is directly complexed to the Cs+ cation. Theoretical analysis of the n = 10 spectrum indicates that the dissociated ions adopt a solvent-separated ion-pair configuration such that the Cs+ and H3O+ cations flank the NO3- anion in a microhydrated salt bridge. This charge separation motif is evidently assisted by the electrostatic stabilization of the product NO3-/H3O+ ion pair by the proximal metal ion.
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Affiliation(s)
- Sayoni Mitra
- Sterling Chemistry Laboratory, Yale University, New Haven, Connecticut 06511, United States
| | - Nan Yang
- Sterling Chemistry Laboratory, Yale University, New Haven, Connecticut 06511, United States
| | - Laura M McCaslin
- Combustion Research Facility, Sandia National Laboratories, Livermore, California 94550, United States
| | - R Benny Gerber
- Institute of Chemistry and the Fritz-Haber Center for Molecular Dynamics, The Hebrew University, Jerusalem, Israel
- Department of Chemistry, University of California Irvine, Irvine, California 92697, United States
| | - Mark A Johnson
- Sterling Chemistry Laboratory, Yale University, New Haven, Connecticut 06511, United States
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9
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Xie F, Mahendiran S, Seifert NA, Xu Y. Modifying conformational distribution of chiral tetrahydro-2-furoic acid through its interaction with water: a rotational spectroscopic and theoretical investigation. Phys Chem Chem Phys 2021; 23:3820-3825. [PMID: 33533340 DOI: 10.1039/d0cp06265k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Rotational spectrum of a binary complex formed between tetrahydro-2-furoic acid (THFA) and water was measured using a chirped pulse Fourier transform microwave spectrometer. A comprehensive theoretical conformational search procedure was carried out using CREST, a conformational searching tool, and DFT calculations to aid the spectral assignment and interpretation. The final conformer ensemble is classified into two structural groups: Type 1 conformers showing a classic carboxylic acid monohydrate structure with two strong hydrogen-bonds formed between the COOH group of cis-THFA and water, and the much less stable Type 2 conformers with trans-THFA and weaker intermolecular interactions with water. The 'cis-' and 'trans-' labels refer to the configurations where the carboxylic C[double bond, length as m-dash]O and OH functional groups are on the same or opposite side, respectively. Only the two most stable Type 2 conformers containing trans-THFA I and II were observed experimentally in a neon jet expansion with an abundance ratio of 1 : 1. This relative abundance observation differs greatly from that of the THFA monomer, i.e. with trans-THFA I : trans-THFA II : cis-THFA III of 10 : 1 : 1 in a neon jet expansion, reported previously. The observation indicates a kinetically controlled formation process of different types of the monohydrates in a jet expansion, whereas a thermodynamically controlled process dominates within each type of structures. The relative stability of the THFA ring conformations is altered by interaction with water, showing a noticeable water induced conformational preference.
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Affiliation(s)
- Fan Xie
- Chemistry Department, The University of Alberta, Edmonton, Alberta T6G 2G2, Canada.
| | | | - Nathan A Seifert
- Chemistry Department, The University of Alberta, Edmonton, Alberta T6G 2G2, Canada.
| | - Yunjie Xu
- Chemistry Department, The University of Alberta, Edmonton, Alberta T6G 2G2, Canada.
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10
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Nguyen HVL, Kleiner I. Understanding (coupled) large amplitude motions: the interplay of microwave spectroscopy, spectral modeling, and quantum chemistry. PHYSICAL SCIENCES REVIEWS 2020. [DOI: 10.1515/psr-2020-0037] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Abstract
A large variety of molecules contain large amplitude motions (LAMs), inter alia internal rotation and inversion tunneling, resulting in tunneling splittings in their rotational spectrum. We will present the modern strategy to study LAMs using a combination of molecular jet Fourier transform microwave spectroscopy, spectral modeling, and quantum chemical calculations to characterize such systems by the analysis of their rotational spectra. This interplay is particularly successful in decoding complex spectra revealing LAMs and providing reference data for fundamental physics, astrochemistry, atmospheric/environmental chemistry and analytics, or fundamental researches in physical chemistry. Addressing experimental key aspects, a brief presentation on the two most popular types of state-of-the-art Fourier transform microwave spectrometer technology, i.e., pulsed supersonic jet expansion–based spectrometers employing narrow-band pulse or broad-band chirp excitation, will be given first. Secondly, the use of quantum chemistry as a supporting tool for rotational spectroscopy will be discussed with emphasis on conformational analysis. Several computer codes for fitting rotational spectra exhibiting fine structure arising from LAMs are discussed with their advantages and drawbacks. Furthermore, a number of examples will provide an overview on the wealth of information that can be drawn from the rotational spectra, leading to new insights into the molecular structure and dynamics. The focus will be on the interpretation of potential barriers and how LAMs can act as sensors within molecules to help us understand the molecular behavior in the laboratory and nature.
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Affiliation(s)
- Ha Vinh Lam Nguyen
- Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA), CNRS UMR 7583 , Université Paris-Est Créteil, Université de Paris, Institut Pierre Simon Laplace , 61 avenue du Général de Gaulle, F-94010 , Créteil , France
- Institut Universitaire de France (IUF) , 1 rue Descartes, F-75231 Paris cedex 05, France
| | - Isabelle Kleiner
- Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA), CNRS UMR 7583 , Université Paris-Est Créteil, Université de Paris, Institut Pierre Simon Laplace , 61 avenue du Général de Gaulle, F-94010 , Créteil , France
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11
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Cheng W, Zheng Y, Feng G, Grabow JU, Gou Q. Conformation and bonding of 2-methoxypyridine and its monohydrate from rotational spectra. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 239:118434. [PMID: 32438304 DOI: 10.1016/j.saa.2020.118434] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/27/2020] [Accepted: 04/28/2020] [Indexed: 06/11/2023]
Abstract
Rotational spectra of 2-methoxypyridine and its monohydrate have been characterized by pulsed jet Fourier transform microwave spectroscopy and complementary ab initio calculations. Rotational spectra of the parent monomer and seven mono-substituted isotopologues (13C and 15N) were measured in natural abundance, which allow determining the accurate structure of the skeleton of 2-methyoxypyridine. The barrier to the methyl internal rotation was determined from the A/E torsional symmetry species of the rotational transitions. For the 2-methyoxypyridine⋯H2O complex, rotational spectra of the parent dimer and isotopologues formed with isotopically enriched water (H218O, HOD, DOH and D2O) indicate that the observed isomer is stabilized by a strong OH⋯N and a secondary bifurcated (CH)2⋯O weak hydrogen bonds. Bader's quantum theory of atoms in molecules and Johnson's non-covalent interaction analyses were applied and visualized to have a better understanding of the non-covalent interactions in 2-methyoxypyridine⋯H2O.
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Affiliation(s)
- Wanying Cheng
- Department of Chemistry, School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Rd. 55, 401331 Chongqing, China
| | - Yang Zheng
- Department of Chemistry, School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Rd. 55, 401331 Chongqing, China
| | - Gang Feng
- Department of Chemistry, School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Rd. 55, 401331 Chongqing, China
| | - Jens-Uwe Grabow
- Institut für Physikalische Chemie & Elektrochemie, Leibniz-Universität Hannover, Callinstraβe 3A, 30167 Hannover, Germany
| | - Qian Gou
- Department of Chemistry, School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Rd. 55, 401331 Chongqing, China.
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12
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Kohns M, Lazarou G, Kournopoulos S, Forte E, Perdomo FA, Jackson G, Adjiman CS, Galindo A. Predictive models for the phase behaviour and solution properties of weak electrolytes: nitric, sulphuric, and carbonic acids. Phys Chem Chem Phys 2020; 22:15248-15269. [PMID: 32609107 DOI: 10.1039/c9cp06795g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The distribution of ionic species in electrolyte systems is important in many fields of science and engineering, ranging from the study of degradation mechanisms to the design of systems for electrochemical energy storage. Often, other phenomena closely related to ionic speciation, such as ion pairing, clustering and hydrogen bonding, which are difficult to investigate experimentally, are also of interest. Here, we develop an accurate molecular approach, accounting for reactions as well as association and ion pairing, to deliver a predictive framework that helps validate experiment and guides future modelling of speciation phenomena of weak electrolytes. We extend the SAFT-VRE Mie equation of state [D. K. Eriksen et al., Mol. Phys., 2016, 114, 2724-2749] to study aqueous solutions of nitric, sulphuric, and carbonic acids, considering complete and partially dissociated models. In order to incorporate the dissociation equilibria, correlations to experimental data for the relevant thermodynamic equilibrium constants of the dissociation reactions are taken from the literature and are imposed as a boundary condition in the calculations. The models for water, the hydronium ion, and carbon dioxide are treated as transferable and are taken from our previous work. We present new molecular models for nitric acid, and the nitrate, bisulfate, sulfate, and bicarbonate anions. The resulting framework is used to predict a range of phase behaviour and solution properties of the aqueous acids over wide ranges of concentration and temperature, including the degree of dissociation, as well as the activity coefficients of the ionic species, and the activity of water and osmotic coefficient, density, and vapour pressure of the solutions. The SAFT-VRE Mie models obtained in this manner provide a means of elucidating the mechanisms of association and ion pairing in the systems studied, complementing the experimental observations reported in the literature.
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Affiliation(s)
- Maximilian Kohns
- Department of Chemical Engineering, Centre for Process Systems Engineering and Institute for Molecular Science and Engineering, South Kensington Campus, Imperial College London, London SW7 2AZ, UK.
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13
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Mitra S, Duong CH, McCaslin LM, Gerber RB, Johnson MA. Isomer-specific cryogenic ion vibrational spectroscopy of the D 2 tagged Cs +(HNO 3)(H 2O) n=0-2 complexes: ion-driven enhancement of the acidic H-bond to water. Phys Chem Chem Phys 2020; 22:4501-4507. [PMID: 32068217 DOI: 10.1039/c9cp06689f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report how the binary HNO3(H2O) interaction is modified upon complexation with a nearby Cs+ ion. Isomer-selective IR photodissociation spectra of the D2-tagged, ternary Cs+(HNO3)H2O cation confirms that two structural isomers are generated in the cryogenic ion source. In one of these, both HNO3 and H2O are directly coordinated to the ion, while in the other, the water molecule is attached to the OH group of the acid, which in turn binds to Cs+ with its -NO2 group. The acidic OH stretching fundamental in the latter isomer displays a ∼300 cm-1 red-shift relative to that in the neutral H-bonded van der Waals complex, HNO3(H2O). This behavior is analyzed with the aid of electronic structure calculations and discussed in the context of the increased effective acidity of HNO3 in the presence of the cation.
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Affiliation(s)
- Sayoni Mitra
- Sterling Chemistry Laboratory, Yale University, New Haven, CT, USA.
| | - Chinh H Duong
- Sterling Chemistry Laboratory, Yale University, New Haven, CT, USA.
| | - Laura M McCaslin
- Department of Chemistry, University of California Irvine, Irvine, CA, USA. and Institute of Chemistry and the Fritz-Haber Center for Molecular Dynamics, The Hebrew University, Jerusalem, Israel
| | - R Benny Gerber
- Department of Chemistry, University of California Irvine, Irvine, CA, USA. and Institute of Chemistry and the Fritz-Haber Center for Molecular Dynamics, The Hebrew University, Jerusalem, Israel
| | - Mark A Johnson
- Sterling Chemistry Laboratory, Yale University, New Haven, CT, USA.
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14
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A detailed hydrogen bonding analysis on the compositions of H 2SO 4/HNO 3/H 2O ternary systems: A computational study. J Mol Graph Model 2018; 80:272-281. [PMID: 29414046 DOI: 10.1016/j.jmgm.2017.12.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 12/11/2017] [Accepted: 12/13/2017] [Indexed: 11/23/2022]
Abstract
Hydrogen bonding properties of H2SO4/HNO3/H2O ternary molecular clusters have been studied by means of structural, energetic, topological, and spectroscopic perspectives. The roles of the hydrogen bonds in the formation of these clusters are considered according to the molecule positions (proton donor or proton acceptor) in the clusters. 33 stable conformers were identified on the potential energy surface. The global minimum one was obtained when HNO3 donates a proton to H2SO4, however, the cooperativity effect contribution was found to be significant for the cluster where HNO3 acts as a proton donor to an H2O molecule.
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15
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Pinacho P, Krin A, Pérez C, Zinn S, López JC, Blanco S, Schnell M. Microsolvated complexes of ibuprofen as revealed by high-resolution rotational spectroscopy. Phys Chem Chem Phys 2018; 20:15635-15640. [DOI: 10.1039/c8cp01088a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Four conformers of microsolvated ibuprofen have been characterized using high-resolution microwave spectroscopy.
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Affiliation(s)
- P. Pinacho
- Departamento de Química Física y Química Inorgánica
- Facultad de Ciencias
- Universidad de Valladolid
- 47011 Valladolid
- Spain
| | - A. Krin
- Deutsches Elektronen-Synchrotron
- 22607 Hamburg
- Germany
- Max-Planck Institut für Struktur und Dynamik der Materie
- Luruper Chaussee 149
| | - C. Pérez
- Deutsches Elektronen-Synchrotron
- 22607 Hamburg
- Germany
- Max-Planck Institut für Struktur und Dynamik der Materie
- Luruper Chaussee 149
| | - S. Zinn
- Deutsches Elektronen-Synchrotron
- 22607 Hamburg
- Germany
- Max-Planck Institut für Struktur und Dynamik der Materie
- Luruper Chaussee 149
| | - J. C. López
- Departamento de Química Física y Química Inorgánica
- Facultad de Ciencias
- Universidad de Valladolid
- 47011 Valladolid
- Spain
| | - S. Blanco
- Departamento de Química Física y Química Inorgánica
- Facultad de Ciencias
- Universidad de Valladolid
- 47011 Valladolid
- Spain
| | - M. Schnell
- Deutsches Elektronen-Synchrotron
- 22607 Hamburg
- Germany
- Max-Planck Institut für Struktur und Dynamik der Materie
- Luruper Chaussee 149
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16
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Özsoy H, Uras-Aytemiz N, Balcı FM. Hydrogen-bonding behavior of various conformations of the HNO 3…(CH 3OH) 2 ternary system. J Mol Model 2017; 24:23. [PMID: 29270854 DOI: 10.1007/s00894-017-3543-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 11/22/2017] [Indexed: 12/01/2022]
Abstract
Nine minima were found on the intermolecular potential energy surface for the ternary system HNO3(CH3OH)2 at the MP2/aug-cc-pVDZ level of theory. The cooperative effect, which is a measure of the hydrogen-bonding strength, was probed in these nine conformations of HNO3…(CH3OH)2. The results are discussed here in terms of structures, energetics, infrared vibrational frequencies, and topological parameters. The cooperative effect was observed to be an important contributor to the total interaction energies of the cyclic conformers of HNO3…(CH3OH)2, meaning that it cannot be neglected in simulations in which the pair-additive potential is applied. Graphical abstract The H-bonding behavior of various conformations of the HNO3(CH3OH)2 trimer was investigated.
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Affiliation(s)
- Hasan Özsoy
- Department of Chemistry, Karabük University, 78050, Karabük, Turkey
| | | | - F Mine Balcı
- Department of Chemistry, Süleyman Demirel University, 32260, Isparta, Turkey
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17
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Van Craen D, Rath WH, Huth M, Kemp L, Räuber C, Wollschläger JM, Schalley CA, Valkonen A, Rissanen K, Albrecht M. Chasing Weak Forces: Hierarchically Assembled Helicates as a Probe for the Evaluation of the Energetics of Weak Interactions. J Am Chem Soc 2017; 139:16959-16966. [PMID: 29068687 DOI: 10.1021/jacs.7b10098] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
London dispersion forces are the weakest interactions between molecules. Because of this, their influence on chemical processes is often low, but can definitely not be ignored, and even becomes important in cases of molecules with large contact surfaces. Hierarchically assembled dinuclear titanium(IV) helicates represent a rare example in which the direct observation of London dispersion forces is possible in solution even in the presence of strong cohesive solvent effects. Hereby, the dispersion forces do not unlimitedly support the formation of the dimeric complexes. Although they have some favorable enthalpic contribution to the dimerization of the monomeric complex units, large flexible substituents become conformationally restricted by the interactions leading to an entropic disadvantage. The dimeric helicates are entropically destabilized.
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Affiliation(s)
- David Van Craen
- Institut für Organische Chemie, RWTH Aachen University , Landoltweg 1, Aachen 52074, Germany
| | - Wolfgang H Rath
- Institut für Organische Chemie, RWTH Aachen University , Landoltweg 1, Aachen 52074, Germany
| | - Marina Huth
- Institut für Organische Chemie, RWTH Aachen University , Landoltweg 1, Aachen 52074, Germany
| | - Laura Kemp
- Institut für Organische Chemie, RWTH Aachen University , Landoltweg 1, Aachen 52074, Germany
| | - Christoph Räuber
- Institut für Organische Chemie, RWTH Aachen University , Landoltweg 1, Aachen 52074, Germany
| | - Jan M Wollschläger
- Institut für Chemie und Biochemie-Organische Chemie, Freie Universität Berlin , Takustrasse 3, Berlin 14195, Germany
| | - Christoph A Schalley
- Institut für Chemie und Biochemie-Organische Chemie, Freie Universität Berlin , Takustrasse 3, Berlin 14195, Germany
| | - Arto Valkonen
- Department of Chemistry, Nanoscience Center, University of Jyvaskyla , Survontie 9 B, Jyväskylä 40014, Finland
| | - Kari Rissanen
- Department of Chemistry, Nanoscience Center, University of Jyvaskyla , Survontie 9 B, Jyväskylä 40014, Finland
| | - Markus Albrecht
- Institut für Organische Chemie, RWTH Aachen University , Landoltweg 1, Aachen 52074, Germany
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18
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Schnitzler EG, Seifert NA, Kusuma I, Jäger W. Rotational Spectroscopy of p-Toluic Acid and Its 1:1 Complex with Water. J Phys Chem A 2017; 121:8625-8631. [DOI: 10.1021/acs.jpca.7b08984] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Nathan A. Seifert
- Department of Chemistry, University of Alberta, Edmonton, AB T6G
2G2, Canada
| | - Ignes Kusuma
- Department of Chemistry, University of Alberta, Edmonton, AB T6G
2G2, Canada
| | - Wolfgang Jäger
- Department of Chemistry, University of Alberta, Edmonton, AB T6G
2G2, Canada
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19
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20
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Schnitzler EG, Seifert NA, Ghosh S, Thomas J, Xu Y, Jäger W. Hydration of the simplest α-keto acid: a rotational spectroscopic and ab initio study of the pyruvic acid–water complex. Phys Chem Chem Phys 2017; 19:4440-4446. [DOI: 10.1039/c6cp08741h] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Non-covalent interactions analysis of hydrogen bonding in the pyruvic acid water complex.
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Affiliation(s)
- Elijah G. Schnitzler
- Department of Chemistry
- University of Alberta
- 11227 Saskatchewan Drive
- Edmonton
- Canada
| | - Nathan A. Seifert
- Department of Chemistry
- University of Alberta
- 11227 Saskatchewan Drive
- Edmonton
- Canada
| | - Supriya Ghosh
- Department of Chemistry
- University of Alberta
- 11227 Saskatchewan Drive
- Edmonton
- Canada
| | - Javix Thomas
- Department of Chemistry
- University of Alberta
- 11227 Saskatchewan Drive
- Edmonton
- Canada
| | - Yunjie Xu
- Department of Chemistry
- University of Alberta
- 11227 Saskatchewan Drive
- Edmonton
- Canada
| | - Wolfgang Jäger
- Department of Chemistry
- University of Alberta
- 11227 Saskatchewan Drive
- Edmonton
- Canada
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21
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Huang W, Thomas J, Jäger W, Xu Y. Tunnelling and barrier-less motions in the 2-fluoroethanol–water complex: a rotational spectroscopic and ab initio study. Phys Chem Chem Phys 2017; 19:12221-12228. [DOI: 10.1039/c7cp01666b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Rotational spectrum of 2-fluoroethanol–water reveals interesting water and methyl internal rotation tunneling and barrier-less motions in the hydrogen-bonded complex.
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Affiliation(s)
- Wenyuan Huang
- Department of Chemistry
- University of Alberta
- Edmonton
- Canada
| | - Javix Thomas
- Department of Chemistry
- University of Alberta
- Edmonton
- Canada
| | - Wolfgang Jäger
- Department of Chemistry
- University of Alberta
- Edmonton
- Canada
| | - Yunjie Xu
- Department of Chemistry
- University of Alberta
- Edmonton
- Canada
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22
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Obenchain DA, Frank DS, Novick SE, Klemperer W. The position of deuterium in HOD—NNO as determined by structural and nuclear quadrupole coupling constants. J Chem Phys 2015; 143:084301. [DOI: 10.1063/1.4928687] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- Daniel A. Obenchain
- Department of Chemistry, Hall-Atwater Laboratories, Wesleyan University, 52 Lawn Avenue, Middletown, Connecticut 06459, USA
| | - Derek S. Frank
- Department of Chemistry, Hall-Atwater Laboratories, Wesleyan University, 52 Lawn Avenue, Middletown, Connecticut 06459, USA
| | - Stewart E. Novick
- Department of Chemistry, Hall-Atwater Laboratories, Wesleyan University, 52 Lawn Avenue, Middletown, Connecticut 06459, USA
| | - William Klemperer
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, USA
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23
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Verdes M, Paniagua M. Facet shapes and thermo-stabilities of H₂SO₄•HNO₃ hydrates involved in polar stratospheric clouds. J Mol Model 2015; 21:238. [PMID: 26287119 DOI: 10.1007/s00894-015-2782-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 07/31/2015] [Indexed: 11/24/2022]
Abstract
The nucleation, ice crystal shapes and thermodynamic stability of polar stratospheric clouds particles are interesting concerns owing to their implication in the ozone layer destruction. Some of these particles are formed by conformers of H2O, HNO3, and H2SO4. We carried out calculations using density functional theory (DFT) to obtain optimized structures. Several stable trimers are achieved -divided in two groups, one with HNO3 moiety, second with H2SO4 moiety- after pre-optimization at B3LYP/6-31G and subsequently optimization at B3LYP/aug-cc-pVTZ level of theory. For both most stable conformers five H2O molecules are added to their optimized trimers to calculate hydrated geometries. The OH stretching harmonic frequencies are provided for all aggregates. The zero-point energy correction (ZEPC), relative electronic energies (∆E), relative reaction Gibbs free energies ∆(∆G)k-relative, and cooling constant (K cooling ) are reported at three temperatures: 188 K, 195 K, and 210 K. Shapes given in our calculations are compared with various experimental shapes as well as comparisons with their thermo-stabilities.
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Affiliation(s)
- Marian Verdes
- Departamento de Química Física Aplicada, Facultad de Ciencias, C-14, Universidad Autónoma de Madrid, Cantoblanco, E-28049, Madrid, Spain,
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24
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Schnitzler EG, Jäger W. The benzoic acid-water complex: a potential atmospheric nucleation precursor studied using microwave spectroscopy and ab initio calculations. Phys Chem Chem Phys 2014; 16:2305-14. [PMID: 24366483 DOI: 10.1039/c3cp54486a] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The pure rotational, high-resolution spectrum of the benzoic acid-water complex was measured in the range of 4-14 GHz, using a cavity-based molecular beam Fourier-transform microwave spectrometer. In all, 40 a-type transitions and 2 b-type transitions were measured for benzoic acid-water, and 12 a-type transitions were measured for benzoic acid-D2O. The equilibrium geometry of benzoic acid-water was determined with ab initio calculations, at the B3LYP, M06-2X, and MP2 levels of theory, with the 6-311++G(2df,2pd) basis set. The experimental rotational spectrum is most consistent with the B3LYP-predicted geometry. Narrow splittings were observed in the b-type transitions, and possible tunnelling motions were investigated using the B3LYP/6-311++G(d,p) level of theory. Rotation of the water moiety about the lone electron pair hydrogen-bonded to benzoic acid, across a barrier of 7.0 kJ mol(-1), is the most likely cause for the splitting. Wagging of the unbound hydrogen atom of water is barrier-less, and this large amplitude motion results in the absence of c-type transitions. The interaction and spectroscopic dissociation energies calculated using B3LYP and MP2 are in good agreement, but those calculated using M06-2X indicate excess stabilization, possibly due to dispersive interactions being over-estimated. The equilibrium constant of hydration was calculated by statistical thermodynamics, using ab initio results and the experimental rotational constants. This allowed us to estimate the changes in percentage of hydrated benzoic acid with variations in the altitude, region, and season. Using monitoring data from Calgary, Alberta, and the MP2-predicted dissociation energy, a yearly average of 1% of benzoic acid is expected to be present in the form of benzoic acid-water. However, this percentage depends sensitively on the dissociation energy. For example, when using the M06-2X-predicted dissociation energy, we find it increases to 18%.
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Affiliation(s)
- Elijah G Schnitzler
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta T6G 2G2, Canada.
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25
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Potapov A, Asselin P. High-resolution jet spectroscopy of weakly bound binary complexes involving water. INT REV PHYS CHEM 2014. [DOI: 10.1080/0144235x.2014.932578] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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26
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Thomas J, Serrato A, Lin W, Jäger W, Xu Y. Perfluorobutyric Acid and Its Monohydrate: A Chirped Pulse and Cavity Based Fourier Transform Microwave Spectroscopic Study. Chemistry 2014; 20:6148-53. [DOI: 10.1002/chem.201304321] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2013] [Indexed: 11/08/2022]
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27
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Nakajima M, Endo Y. Spectroscopic characterization of the complex between water and the simplest Criegee intermediate CH2OO. J Chem Phys 2014; 140:134302. [DOI: 10.1063/1.4869696] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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28
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Thomas J, Sukhorukov O, Jäger W, Xu Y. Direkter spektroskopischer Nachweis spezifischer Orientierungen freier OH-Gruppen in Methyllactat-(Wasser)1,2-Clustern: Hydratation eines chiralen Hydroxyesters. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201308466] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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29
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Thomas J, Sukhorukov O, Jäger W, Xu Y. Direct Spectroscopic Detection of the Orientation of Free OH Groups in Methyl Lactate-(Water)1,2Clusters: Hydration of a Chiral Hydroxy Ester. Angew Chem Int Ed Engl 2013; 53:1156-9. [DOI: 10.1002/anie.201308466] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2013] [Revised: 10/21/2013] [Indexed: 11/09/2022]
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30
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Vasilchenko D, Tkachev S, Baidina I, Korenev S. Speciation of Platinum(IV) in Nitric Acid Solutions. Inorg Chem 2013; 52:10532-41. [DOI: 10.1021/ic401499j] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Danila Vasilchenko
- Nikolaev
Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, Novosibirsk 630090, Russia
- Novosibirsk State University, Novosibirsk 630090, Russia
| | - Sergey Tkachev
- Nikolaev
Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, Novosibirsk 630090, Russia
| | - Iraida Baidina
- Nikolaev
Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, Novosibirsk 630090, Russia
| | - Sergey Korenev
- Nikolaev
Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, Novosibirsk 630090, Russia
- Novosibirsk State University, Novosibirsk 630090, Russia
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31
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Oyama T, Nakajima M, Sumiyoshi Y, Endo Y. Pure rotational spectroscopy of the H2O−trans-HOCO complex. J Chem Phys 2013; 138:204318. [DOI: 10.1063/1.4807749] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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32
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33
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Rubasinghege G, Grassian VH. Surface-Catalyzed Chlorine and Nitrogen Activation: Mechanisms for the Heterogeneous Formation of ClNO, NO, NO2, HONO, and N2O from HNO3 and HCl on Aluminum Oxide Particle Surfaces. J Phys Chem A 2012; 116:5180-92. [DOI: 10.1021/jp301488b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gayan Rubasinghege
- Department of Chemistry, University of Iowa, Iowa City, Iowa
52242, United States
| | - Vicki H. Grassian
- Department of Chemistry, University of Iowa, Iowa City, Iowa
52242, United States
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34
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Balcı FM, Uras-Aytemiz N, Gómez PC, Escribano R. Proton transfer and autoionization in HNO3·HCl·(H2O)n particles. Phys Chem Chem Phys 2011; 13:18145-53. [PMID: 21931890 DOI: 10.1039/c1cp22322d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The structure and spectroscopic properties of clusters of HNO(3)·HCl·(H(2)O)(n), with n = 1 to 6, have been calculated at the MP2/aug-cc-pVDZ level of theory. Altogether 22 different clusters have been found as stable structures, with minima in their potential energy surfaces. The clusters can be grouped in families with the same number of water molecules, and with close aggregation energies within each family. The addition of each new water molecule increments the aggregation energy of the clusters by a nearly constant value of 76.2 ± 0.1 Hartree. The proton transfer parameter and the coordination number of HNO(3) and HCl in each cluster have been evaluated, and the wavenumber shifts for the X(-)-H(+) vibration from the corresponding mode in the isolated molecules have also been predicted. These values allow classification of the acidic species in the clusters into three types, characterized by the strength of the hydrogen bond and the degree of ionization. A correspondence is found between the coordination number of HNO(3) and the magnitude of the X(-)-H(+) vibrational shift.
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Affiliation(s)
- F Mine Balcı
- Departament of Chemistry, Suleyman Demirel University, 32260 Isparta, Turkey.
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35
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Affiliation(s)
- Veronica Vaida
- Department of Chemistry and Biochemistry, CIRES, University of Colorado, Boulder, Colorado 80309-0215, USA
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36
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37
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Affiliation(s)
- Kenneth R. Leopold
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455;
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38
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Balcı FM, Uras-Aytemiz N. Interaction in the Ternary Complexes of HNO3···HCl···H2O: A Theoretical Study on Energetics, Structure, and Spectroscopy. J Phys Chem A 2011; 115:5943-54. [PMID: 21410276 DOI: 10.1021/jp1103577] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- F. Mine Balcı
- Department of Chemistry, Suleyman Demirel University, 32260 Isparta, Turkey
| | - Nevin Uras-Aytemiz
- Department of Chemistry, Suleyman Demirel University, 32260 Isparta, Turkey
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39
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Sedo G, Leopold KR. Partial Proton Transfer in a Molecular Complex: Assessments From Both the Donor and Acceptor Points of View. J Phys Chem A 2011; 115:1787-94. [DOI: 10.1021/jp108851t] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Galen Sedo
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Kenneth R. Leopold
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
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40
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Kisiel Z, Lesarri A, Neill JL, Muckle MT, Pate BH. Structure and properties of the (HCl)2H2O cluster observed by chirped-pulse Fourier transform microwave spectroscopy. Phys Chem Chem Phys 2011; 13:13912-9. [DOI: 10.1039/c1cp20841a] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Vaida V, Kjaergaard HG, Feierabend KJ. Hydrated Complexes: Relevance to Atmospheric Chemistry and Climate. INT REV PHYS CHEM 2010. [DOI: 10.1080/0144235031000075780] [Citation(s) in RCA: 102] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Veronica Vaida
- a Department of Chemistry and Biochemistry and CIRES , University of Colorado , Campus Box 215, Boulder , CO , 80309 , USA
| | - Henrik G. Kjaergaard
- b Department of Chemistry , University of Otago , PO Box 56, Dunedin , New Zealand
| | - Karl J. Feierabend
- a Department of Chemistry and Biochemistry and CIRES , University of Colorado , Campus Box 215, Boulder , CO , 80309 , USA
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42
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Ouyang B, Howard BJ. Hydrates of trans- and gauche-Difluoroacetic Acids: A High-Resolution Microwave Spectroscopic Study. J Phys Chem A 2010; 114:4109-17. [DOI: 10.1021/jp9103849] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Bin Ouyang
- Physical and Theoretical Chemistry Laboratory, Department of Chemistry, the University of Oxford, South Parks Road, Oxford OX1 3QZ, United Kingdom
| | - Brian J. Howard
- Physical and Theoretical Chemistry Laboratory, Department of Chemistry, the University of Oxford, South Parks Road, Oxford OX1 3QZ, United Kingdom
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43
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Sedo G, Doran JL, Leopold KR. Partial Proton Transfer in the Nitric Acid Trihydrate Complex. J Phys Chem A 2009; 113:11301-10. [DOI: 10.1021/jp9063033] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Galen Sedo
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455
| | - Jamie L. Doran
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455
| | - Kenneth R. Leopold
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455
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44
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Maroń MK, Shultz MJ, Vaida V. Characterization of the nitric acid–water complex in the infrared and near-infrared region at ambient temperatures in carbon tetrachloride. Chem Phys Lett 2009. [DOI: 10.1016/j.cplett.2009.03.071] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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45
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Gómez PC, Gálvez O, Escribano R. Theoretical study of atmospheric clusters: HNO3–HCl–H2O. Phys Chem Chem Phys 2009; 11:9710-9. [DOI: 10.1039/b911457b] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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46
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Ouyang B, Howard BJ. The monohydrate and dihydrate of acetic acid: A high-resolution microwave spectroscopic study. Phys Chem Chem Phys 2009; 11:366-73. [DOI: 10.1039/b814562h] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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47
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Ouyang B, Howard BJ. High-Resolution Microwave Spectroscopic and ab initio Studies of Propanoic Acid and Its Hydrates. J Phys Chem A 2008; 112:8208-14. [DOI: 10.1021/jp802422b] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Bin Ouyang
- Physical and Theoretical Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QZ, United Kingdom
| | - Brian J. Howard
- Physical and Theoretical Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QZ, United Kingdom
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Spectroscopic identification and stability of the intermediate in the OH + HONO2 reaction. Proc Natl Acad Sci U S A 2008; 105:12678-83. [PMID: 18678905 DOI: 10.1073/pnas.0800320105] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The reaction of nitric acid with the hydroxyl radical influences the residence time of HONO(2) in the lower atmosphere. Prior studies [Brown SS, Burkholder JB, Talukdar RK, Ravishankara AR (2001) J Phys Chem A 105:1605-1614] have revealed unusual kinetic behavior for this reaction, including a negative temperature dependence, a complex pressure dependence, and an overall reaction rate strongly affected by isotopic substitution. This behavior suggested that the reaction occurs through an intermediate, theoretically predicted to be a hydrogen-bonded OH-HONO(2) complex in a six-membered ring-like configuration. In this study, the intermediate is generated directly by the association of photolytically generated OH radicals with HONO(2) and stabilized in a pulsed supersonic expansion. Infrared action spectroscopy is used to identify the intermediate by the OH radical stretch (nu(1)) and OH stretch of nitric acid (nu(2)) in the OH-HONO(2) complex. Two vibrational features are attributed to OH-HONO(2): a rotationally structured nu(1) band at 3516.8 cm(-1) and an extensively broadened nu(2) feature at 3260 cm(-1), both shifted from their respective monomers. These same transitions are identified for OD-DONO(2). Assignments of the features are based on their vibrational frequencies, analysis of rotational band structure, and comparison with complementary high level ab initio calculations. In addition, the OH (v = 0) product state distributions resulting from nu(1) and nu(2) excitation are used to determine the binding energy of OH-HONO(2), D(0) <or= 5.3 kcal x mol(-1), which is in good accord with ab initio predictions.
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Sorkin A, Dahlke EE, Truhlar DG. Application of the Electrostatically Embedded Many-Body Expansion to Microsolvation of Ammonia in Water Clusters. J Chem Theory Comput 2008; 4:683-8. [DOI: 10.1021/ct7003462] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anastassia Sorkin
- Department of Chemistry and Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55403-0431
| | - Erin E. Dahlke
- Department of Chemistry and Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55403-0431
| | - Donald G. Truhlar
- Department of Chemistry and Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55403-0431
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50
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Craddock MB, Brauer CS, Leopold KR. Microwave Spectrum, Structure, and Internal Dynamics of the Nitric Acid Dihydrate Complex. J Phys Chem A 2008; 112:488-96. [DOI: 10.1021/jp075789f] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Matthew B. Craddock
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455
| | - Carolyn S. Brauer
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455
| | - Kenneth R. Leopold
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455
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