1
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Salbaing T, Comte D, Lavy L, Lissillour H, Ospina LP, Bertier P, Feketeová L, Calvo F, Farizon B, Farizon M, Märk T. Water molecule elimination from the protonated methanol dimer ion-An example of a size-selective intracluster reaction. J Chem Phys 2024; 160:094301. [PMID: 38436443 DOI: 10.1063/5.0190182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 02/12/2024] [Indexed: 03/05/2024] Open
Abstract
The abundance of extraterrestrial methanol makes the reaction between methanol molecules in a molecular cluster a possible key step in the search for mechanisms for the formation of more complex molecules under the conditions of the interstellar medium as well as circumstellar and planetary atmospheres. The reaction leading to the formation of the dimethyl ether ion from a methanol molecule interacting with a protonated methanol ion via the elimination of a water molecule is a basic mechanism for the formation of complex organic molecules. Here, we experimentally examine such reactions in the gas phase, analyzing the production and reactivity of protonated cluster ions formed by the ionization of a supersonic jet of methanol. Focusing especially on the post-collisional relaxation of the protonated methanol dimer and trimer ions after high-energy single collisions, the results indicate a strong size selectivity favoring the occurrence of this reaction only in the dimer ion. To elucidate this behavior, the velocity distribution of the eliminated water molecule was measured using an event-by-event coincidence analysis. These results are interpreted using quantum chemical calculations of the dissociation pathways. It turns out that in the dimer case, two transition states are able to contribute to this intracluster reaction. In the trimer case, methanol evaporation appears as the most energetically favorable relaxation pathway.
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Affiliation(s)
- Thibaud Salbaing
- Université Claude Bernard Lyon 1, IP2I Lyon, UMR 5822, CNRS/IN2P3, F-69622 Villeurbanne, France
| | - Denis Comte
- Université Claude Bernard Lyon 1, IP2I Lyon, UMR 5822, CNRS/IN2P3, F-69622 Villeurbanne, France
- Institut für Ionenphysik und Angewandte Physik, Leopold Franzens Universität, 6020 Innsbruck, Austria
| | - Léo Lavy
- Université Claude Bernard Lyon 1, IP2I Lyon, UMR 5822, CNRS/IN2P3, F-69622 Villeurbanne, France
| | - Hector Lissillour
- Université Claude Bernard Lyon 1, IP2I Lyon, UMR 5822, CNRS/IN2P3, F-69622 Villeurbanne, France
| | - Laura Parrado Ospina
- Université Claude Bernard Lyon 1, IP2I Lyon, UMR 5822, CNRS/IN2P3, F-69622 Villeurbanne, France
| | - Paul Bertier
- Université Claude Bernard Lyon 1, IP2I Lyon, UMR 5822, CNRS/IN2P3, F-69622 Villeurbanne, France
| | - Linda Feketeová
- Université Claude Bernard Lyon 1, IP2I Lyon, UMR 5822, CNRS/IN2P3, F-69622 Villeurbanne, France
| | - Florent Calvo
- Université Grenoble Alpes, CNRS, LIPhy, 38000 Grenoble, France
| | - Bernadette Farizon
- Université Claude Bernard Lyon 1, IP2I Lyon, UMR 5822, CNRS/IN2P3, F-69622 Villeurbanne, France
| | - Michel Farizon
- Université Claude Bernard Lyon 1, IP2I Lyon, UMR 5822, CNRS/IN2P3, F-69622 Villeurbanne, France
| | - Tilmann Märk
- Institut für Ionenphysik und Angewandte Physik, Leopold Franzens Universität, 6020 Innsbruck, Austria
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Majima T, Mizunami Y, Teramoto T, Tsuchida H, Saito M. Fast Heavy-Ion-Induced Anion–Molecule Reactions on the Methanol Droplet Surface. J Phys Chem A 2022; 126:8988-8996. [DOI: 10.1021/acs.jpca.2c06387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Takuya Majima
- Department of Nuclear Engineering, Kyoto University, Kyoto615-8540, Japan
| | - Yuki Mizunami
- Department of Nuclear Engineering, Kyoto University, Kyoto615-8540, Japan
| | - Takahiro Teramoto
- Institute for Radiation Sciences, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka560-0043, Japan
| | - Hidetsugu Tsuchida
- Department of Nuclear Engineering, Kyoto University, Kyoto615-8540, Japan
- Quantum Science and Engineering Center, Kyoto University, Uji611-0011, Japan
| | - Manabu Saito
- Department of Nuclear Engineering, Kyoto University, Kyoto615-8540, Japan
- Quantum Science and Engineering Center, Kyoto University, Uji611-0011, Japan
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3
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Shinkai T, Hsu PJ, Fujii A, Kuo JL. Infrared spectroscopy and theoretical structure analyses of protonated fluoroalcohol clusters: the impact of fluorination on the hydrogen bond networks. Phys Chem Chem Phys 2022; 24:12631-12644. [PMID: 35579401 DOI: 10.1039/d2cp01300b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
To explore the impact of fluorination on the hydrogen bond networks of protonated alkylalcohols, infrared spectroscopy and theoretical computations of protonated 2,2,2-trifluoroethanol clusters, H+(TFE)n, (n = 4-7), were performed. It has been demonstrated that the development of the hydrogen bond networks from a linear type to cyclic types occurs in this size region for the protonated alkylalcohol clusters. In contrast, infrared spectroscopy of H+(TFE)n in the OH/CH stretch region clearly indicated that the linear type structures are held in the whole size range, irrespective of temperature of the clusters. The extensive stable isomer structure search of H+(TFE)n based on our latest sampling approach supported the strong preference of the linear type hydrogen bond networks. Detailed analyses of the free OH stretching vibrational bands evidenced the intra- and intermolecular OH⋯FC interactions in the clusters. In addition, infrared spectra of protonated clusters of 2,2-difluoroethanol, 2,2-difluoropropanol, and 3,3,3-trifluoropropanol were measured for n = 4 and 5, and their spectra also indicated the effective inhibition of the cyclic hydrogen bond network formation by the fluorination.
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Affiliation(s)
- Takahiro Shinkai
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
| | - Po-Jen Hsu
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan.
| | - Asuka Fujii
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
| | - Jer-Lai Kuo
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan.
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4
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Kato T, Fujii A. How many methanol molecules effectively solvate an excess proton in the gas phase? Infrared spectroscopy of H +(methanol) n-benzene clusters. Phys Chem Chem Phys 2021; 24:163-171. [PMID: 34878469 DOI: 10.1039/d1cp04689f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
An excess proton in a hydrogen-bonded system enhances the strength of hydrogen bonds of the surrounding molecules. The extent of this influence can be a measure of the number of molecules effectively solvating the excess proton. Such extent in methanol has been discussed by the observation of the π-hydrogen-bonded OH stretch bands of the terminal sites of protonated methanol clusters, H+(methanol)n, in benzene solutions, and it has been concluded that ∼8 molecules effectively solvate the excess proton (Stoyanov et al., Chem. Eur. J. 2008, 14, 3596-3604). In the present study, we performed infrared spectroscopy of H+(methanol)n-benzene clusters in the gas phase. The cluster size and hydrogen-bonded network structure are identified by the tandem mass spectrometric technique and the comparison of the observed infrared spectra with density functional theory calculations. Though changes of the preferred hydrogen bond network type occur with the increase of cluster size in the gas phase clusters, the observed size dependence of the π-hydrogen bonded OH frequency agrees well with that in the benzene solutions. This means that the observations in both the gas and condensed phases catch the same physical essence of the excess proton solvation by methanol.
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Affiliation(s)
- Takeru Kato
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
| | - Asuka Fujii
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
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5
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Lin CK, Huang QR, Li YC, Nguyen HQ, Kuo JL, Fujii A. Anharmonic Coupling Revealed by the Vibrational Spectra of Solvated Protonated Methanol: Fermi Resonance, Combination Bands, and Isotope Effect. J Phys Chem A 2021; 125:1910-1918. [PMID: 33636081 DOI: 10.1021/acs.jpca.1c00068] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Intriguing vibrational features of solvated protonated methanol between 2400-3800 cm-1 are recorded by infrared predissociation spectroscopy. Positions of absorption bands corresponding to OH stretching modes are sensitive to changes in solvation environments, thus leading to changes in these vibrational features. Two anharmonic coupling mechanisms, Fermi resonance (FR) contributed by bending overtones and combination band (CB) associated with intermolecular stretching modes, are known to lead to band splitting of OH stretching fundamentals in solvated hydronium and ammonium. Theoretical analyses based on the ab initio anharmonic algorithm not only well reproduce the experimentally observed features but also elucidate the magnitudes of such couplings and the resulting interplay between these two mechanisms, which provide convincing assignments of the spectral patterns. Moreover, while the hydroxyl group plays the leading role in all the above-mentioned features, the role of the methyl group is also analyzed. Through the H/D isotope substitution, we identify overtones of the methyl-hydroxyl rocking modes and their participation in FR.
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Affiliation(s)
- Chih-Kai Lin
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, Taiwan 10617, ROC
| | - Qian-Rui Huang
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, Taiwan 10617, ROC
| | - Ying-Cheng Li
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, Taiwan 10617, ROC
| | - Ha-Quyen Nguyen
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, Taiwan 10617, ROC
| | - Jer-Lai Kuo
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, Taiwan 10617, ROC
| | - Asuka Fujii
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
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6
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Mechanisms of sequential ion-molecule reactions in protonated methanol using mass spectrometry, ab initio methods, and statistical modeling. Chem Phys 2019. [DOI: 10.1016/j.chemphys.2019.110420] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Sugawara N, Hsu PJ, Fujii A, Kuo JL. Competition between hydrogen bonds and van der Waals forces in intermolecular structure formation of protonated branched-chain alcohol clusters. Phys Chem Chem Phys 2018; 20:25482-25494. [PMID: 30276413 DOI: 10.1039/c8cp05222k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
To investigate the influence of bulky alkyl groups on hydrogen-bonded (H-bonded) network structures of alcohols, infrared (IR) spectra of protonated clusters of 2-propanol (2-PrOH) and tert-butyl alcohol (t-BuOH) were observed in the OH and CH stretch regions. In addition, by varying the tag species, the temperature dependence profile of the isomer population of H+(t-BuOH)n was revealed. An extensive search for stable isomers was performed using dispersion-corrected density functional theory methods, and temperature-dependent IR spectral simulations were done on the basis of the harmonic superposition approximation. The computational results qualitatively agreed with the observed size and temperature dependence of the H-bonded network structures of these protonated bulky alcohol clusters. However, the difficulty in the quantitative evaluation of dispersion was also demonstrated. It was shown that H+(2-PrOH)n (n = 4-7) have essentially the same network structures as the protonated normal alcohol clusters studied so far. On the other hand, H+(t-BuOH)n (n = 4-8) showed a clear preference for the smaller-membered ring structures, that is very different from the preference of the protonated normal alcohol clusters. The origin of the different structure preferences was discussed in terms of the steric effect and dispersion.
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Affiliation(s)
- Natsuko Sugawara
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
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8
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Fujii A, Sugawara N, Hsu PJ, Shimamori T, Li YC, Hamashima T, Kuo JL. Hydrogen bond network structures of protonated short-chain alcohol clusters. Phys Chem Chem Phys 2018; 20:14971-14991. [DOI: 10.1039/c7cp08072g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Protonated alcohol clusters enable extraction of the physical essence of the nature of hydrogen bond networks.
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Affiliation(s)
- Asuka Fujii
- Department of Chemistry
- Graduate School of Science
- Tohoku University
- Sendai 980-8578
- Japan
| | - Natsuko Sugawara
- Department of Chemistry
- Graduate School of Science
- Tohoku University
- Sendai 980-8578
- Japan
| | - Po-Jen Hsu
- Institute of Atomic and Molecular Sciences
- Academia Sinica
- Taipei 10617
- Taiwan
| | - Takuto Shimamori
- Department of Chemistry
- Graduate School of Science
- Tohoku University
- Sendai 980-8578
- Japan
| | - Ying-Cheng Li
- Institute of Atomic and Molecular Sciences
- Academia Sinica
- Taipei 10617
- Taiwan
| | - Toru Hamashima
- Department of Chemistry
- Graduate School of Science
- Tohoku University
- Sendai 980-8578
- Japan
| | - Jer-Lai Kuo
- Institute of Atomic and Molecular Sciences
- Academia Sinica
- Taipei 10617
- Taiwan
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9
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Katada M, Hsu PJ, Fujii A, Kuo JL. Temperature and Size Dependence of Characteristic Hydrogen-Bonded Network Structures with Ion Core Switching in Protonated (Methanol)6–10–(Water)1 Mixed Clusters: A Revisit. J Phys Chem A 2017; 121:5399-5413. [DOI: 10.1021/acs.jpca.7b03762] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Marusu Katada
- Department
of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| | - Po-Jen Hsu
- Institute
of Atomic and Molecular Sciences, Academia Sinica, Taipei, 10617, Taiwan
| | - Asuka Fujii
- Department
of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| | - Jer-Lai Kuo
- Institute
of Atomic and Molecular Sciences, Academia Sinica, Taipei, 10617, Taiwan
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10
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Mafuné F, Kobno JY, Kondow T. Ejection of Cluster Ions from a Liquid Beam of an Aniline-Propanol Solution Following Laser Photoionization. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.199500058] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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11
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Fifen JJ, Nsangou M, Dhaouadi Z, Motapon O, Jaidane NE. Structures of protonated methanol clusters and temperature effects. J Chem Phys 2013; 138:184301. [DOI: 10.1063/1.4802480] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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12
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Guan J, Hu Y, Zou H, Cao L, Liu F, Shan X, Sheng L. Competitive fragmentation pathways of acetic acid dimer explored by synchrotron VUV photoionization mass spectrometry and electronic structure calculations. J Chem Phys 2012; 137:124308. [DOI: 10.1063/1.4754273] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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13
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Kuo JL, Fujii A, Mikami N. Theoretical Analyses of the Morphological Development of the Hydrogen Bond Network in Protonated Methanol Clusters. J Phys Chem A 2007; 111:9438-45. [PMID: 17685501 DOI: 10.1021/jp074676t] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Extensive density functional theory (DFT) calculations are carried out on various structural isomers of protonated methanol clusters, H(+)(MeOH)n (n = 2-9), to analyze the morphological development of the hydrogen bond network in the clusters with an increase of the cluster size. Coexistence of multiple structural isomers is demonstrated by the nearly degenerated energies. Moreover, significant temperature dependence of the preferential isomer structure is shown by the calculated Gibbs free energies. The previously reported infrared spectra of H(+)(MeOH)n (J. Phys. Chem. A 2005, 109, 138) are revisited on the basis of the spectral simulations of the isomers by DFT calculations.
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Affiliation(s)
- Jer-Lai Kuo
- School of Physical and Mathematical Sciences, Nanyang Technological University, 1 Nanyang Walk, Block 5, Level 3, Singapore 637616, Singapore.
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14
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Fu HB, Hu YJ, Bernstein ER. IR+vacuum ultraviolet (118 nm) nonresonant ionization spectroscopy of methanol monomers and clusters: Neutral cluster distribution and size-specific detection of the OH stretch vibrations. J Chem Phys 2006; 124:024302. [PMID: 16422578 DOI: 10.1063/1.2141951] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Small methanol clusters are formed by expanding a mixture of methanol vapor seeded in helium and are detected using vacuum UV (vuv) (118 nm) single-photon ionization/linear time-of-flight mass spectrometer (TOFMS). Protonated cluster ions, (CH3OH)(n-1)H+ (n=2-8), formed through intracluster ion-molecule reactions following ionization, essentially correlate to the neutral clusters, (CH3OH)n, in the present study using 118 nm light as the ionization source. Both experimental and Born-Haber calculational results clarify that not enough excess energy is released into protonated cluster ions to initiate further fragmentation in the time scale appropriate for linear TOFMS. Size-specific spectra for (CH3OH)n (n=4 to 8) clusters in the OH stretch fundamental region are recorded by IR+vuv (118 nm) nonresonant ion-dip spectroscopy through the detection chain of IR multiphoton predissociation and subsequent vuv single-photon ionization. The general structures and gross features of these cluster spectra are consistent with previous theoretical calculations. The lowest-energy peak contributed to each cluster spectrum is redshifted with increasing cluster size from n=4 to 8, and limits near approximately 3220 cm(-1) in the heptamer and octamer. Moreover, IR+vuv nonresonant ionization detected spectroscopy is employed to study the OH stretch first overtone of the methanol monomer. The rotational temperature of the clusters is estimated to be at least 50 K based on the simulation of the monomer rotational envelope under clustering conditions.
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Affiliation(s)
- H B Fu
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, USA
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15
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Fujii A, Enomoto S, Miyazaki M, Mikami N. Morphology of Protonated Methanol Clusters: An Infrared Spectroscopic Study of Hydrogen Bond Networks of H+(CH3OH)n (n = 4−15). J Phys Chem A 2004; 109:138-41. [PMID: 16839098 DOI: 10.1021/jp0463464] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Infrared spectroscopy of large-sized protonated methanol clusters, H(+)(MeOH)(n) (n = 4-15), was carried out in the OH stretch region to characterize the development of the hydrogen bond network with the cluster size, n. The band intensity of the free OH stretching mode decreased with n, and the band finally disappeared at n = 7. On the other hand, the broad absorption band due to hydrogen-bonded OH stretches exhibited a remarkable shift with the cluster size, and it finally converged on 3300 cm(-1) for n >/= approximately 10. The size dependence of the infrared spectra was morphologically interpreted in terms of the formation of the bicyclic hydrogen-bonded structure of the clusters.
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Affiliation(s)
- Asuka Fujii
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
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16
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Tsai ST, Jiang JC, Lin MF, Lee YT, Ni CK. Carbon–carbon bond cleavage in the photoionization of ethanol and 1-propanol clusters. J Chem Phys 2004; 120:8979-84. [PMID: 15267833 DOI: 10.1063/1.1704637] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Tunable VUV laser was used to initiate the ion-molecule reactions in the clusters of ethanol and 1-propanol by photoionization in the region between 10.49 to 10.08 eV. Ionic products were detected by the time-of-flight mass spectrometer. In addition to the protonated clusters from proton transfer reactions, the products corresponding to beta carbon-carbon bond cleavage were found to be one of the major products for small sizes of clusters. A comparison with photoionization of methanol clusters and the results of ab initio calculation has been made.
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Affiliation(s)
- Shang-Ting Tsai
- Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei, 106, Taiwan, Republic of China
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17
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Mair C, Lezius M, Herman Z, Märk TD. Surface induced dissociations of protonated ethanol monomer, dimer and trimer ions: Trimer break-down graph from the collision energy dependence of projectile fragmentation. J Chem Phys 2003. [DOI: 10.1063/1.1556851] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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18
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Morrone JA, Tuckerman ME. Ab initio molecular dynamics study of proton mobility in liquid methanol. J Chem Phys 2002. [DOI: 10.1063/1.1496457] [Citation(s) in RCA: 124] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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19
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Ochran RA, Annamalai A, Mayer PM. Unimolecular Reactions of Proton-Bound Cluster Ions: Competition between Dissociation and Isomerization in the Ethanol−Acetonitrile Dimer. J Phys Chem A 2000. [DOI: 10.1021/jp001051l] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Paul M. Mayer
- Chemistry Department, University of Ottawa, Ottawa, Canada K1N 6N5
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20
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Mayer PM. Unimolecular Reactions of Proton-Bound Cluster Ions: Competition between Dissociation and Isomerization in the Methanol−Acetonitrile Dimer. J Phys Chem A 1999. [DOI: 10.1021/jp984473s] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Paul M. Mayer
- Department of Chemistry, University of Ottawa, Ottawa, Canada K1N 6N5
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21
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22
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Achatz U, Joos S, Berg C, Schindler T, Beyer M, Albert G, Niedner-Schatteburg G, Bondybey VE. Acid−Base Catalyzed Reactions in Ionic Water Clusters. J Am Chem Soc 1998. [DOI: 10.1021/ja971869t] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Uwe Achatz
- Contribution from the Institut für Physikalische und Theoretische Chemie, Technische Universität München, 85747 Garching, Germany
| | - Stefan Joos
- Contribution from the Institut für Physikalische und Theoretische Chemie, Technische Universität München, 85747 Garching, Germany
| | - Christian Berg
- Contribution from the Institut für Physikalische und Theoretische Chemie, Technische Universität München, 85747 Garching, Germany
| | - Thomas Schindler
- Contribution from the Institut für Physikalische und Theoretische Chemie, Technische Universität München, 85747 Garching, Germany
| | - Martin Beyer
- Contribution from the Institut für Physikalische und Theoretische Chemie, Technische Universität München, 85747 Garching, Germany
| | - Gerhard Albert
- Contribution from the Institut für Physikalische und Theoretische Chemie, Technische Universität München, 85747 Garching, Germany
| | - Gereon Niedner-Schatteburg
- Contribution from the Institut für Physikalische und Theoretische Chemie, Technische Universität München, 85747 Garching, Germany
| | - Vladimir E. Bondybey
- Contribution from the Institut für Physikalische und Theoretische Chemie, Technische Universität München, 85747 Garching, Germany
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23
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Castleman AW, Bowen KH. Clusters: Structure, Energetics, and Dynamics of Intermediate States of Matter. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp961030k] [Citation(s) in RCA: 603] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A. W. Castleman
- Department of Chemistry, Pennsylvania State University, 152 Davey Laboratory, University Park, Pennsylvania 16802
| | - K. H. Bowen
- Department of Chemistry, The Johns Hopkins University, 3400 N. Charles Street, Baltimore, Maryland 21218
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24
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Mafuné, F, Kohno JY, Kondow T. Ion−Molecule Reactions in a Liquid Beam of Methanol, Ethanol, and 1-Propanol following Multiphoton Ionization. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp953603j] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fumitaka Mafuné,
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113, Japan
| | - Jun-ya Kohno
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113, Japan
| | - Tamotsu Kondow
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113, Japan
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25
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