1
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Xiong X, Hu Y. Infrared Spectroscopy of Neutral and Cationic Benzonitrile-Methanol Binary Clusters in Supersonic Jets. Molecules 2024; 29:2744. [PMID: 38930810 PMCID: PMC11206090 DOI: 10.3390/molecules29122744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 06/01/2024] [Accepted: 06/05/2024] [Indexed: 06/28/2024] Open
Abstract
The formation of nitrogen-containing organic interstellar molecules is of great importance to reveal chemical processes and the origin of life on Earth. Benzonitrile (BN) is one of the simplest nitrogen-containing aromatic molecules in the interstellar medium (ISM) that has been detected in recent years. Methanol (CH3OH) exists widely in interstellar space with high reactivity. Herein, we measured the infrared (IR) spectra of neutral and cationic BN-CH3OH clusters by vacuum ultraviolet (VUV) photoionization combined with time-of-flight mass spectrometry. Combining IR spectra with the density functional theory calculations, we reveal that the BN-CH3OH intends to form a cyclic H-bonded structure in neutral clusters. However, after the ionization of BN-CH3OH clusters, proton-shared N···H···O and N···H···C structures are confirmed to form between BN and CH3OH, with the minor coexistence of H-bond and O-π structures. The formation of the proton-shared structure expands our knowledge of the evolution of the life-related nitrogen-containing molecules in the universe and provides a possible pathway to the further study of biorelevant aromatic organic macromolecules.
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Affiliation(s)
| | - Yongjun Hu
- MOE Key Laboratory of Laser Life Science & Guangdong Provincial Key Laboratory of Laser Life Science, Guangzhou Key Laboratory of Spectral Analysis and Functional Probes, College of Biophotonics, South China Normal University, Guangzhou 510631, China
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2
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Xie M, Sun X, Li W, Guan J, Liang Z, Hu Y. A Facile Route for the Formation of Complex Nitrogen-Containing Prebiotic Molecules in the Interstellar Medium. J Phys Chem Lett 2022; 13:8207-8213. [PMID: 36006401 DOI: 10.1021/acs.jpclett.2c01857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Prebiotic molecules have often been identified in the interstellar medium and meteorite samples. However, we still have only a fragmentary knowledge of the mechanism of the evolutionary process of these prebiotic molecules. With the aid of state-of-the-art vacuum ultraviolet (VUV)-infrared (IR) spectroscopy and ab initio calculations, we reveal a new pathway leading to the formation of the biorelevant molecules carrying amine groups or peptide bonds via the single-photon ionization induced Michael/cyclization reaction of acrylonitrile (AN)-alcohol heterodimer complexes in the gas phase. In the reactions, not only N-H nitrilium cations with H+-N≡C-R Lewis structure but also cyclic amine cations with a peptide bond can be formed when the AN reacts with alcohols of increasing molecular size (such as ethanol, propanol, or butanol). This study suggests the possibility of unsaturated nitriles being reduced by ionized alcohols in space, which can further drive sequential Michael addition/cyclization reactions to form more complex biorelevant molecules.
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Affiliation(s)
- Min Xie
- MOE Key Laboratory of Laser Life Science & Guangdong Provincial Key Laboratory of Laser Life Science, Guangzhou Key Laboratory of Spectral Analysis and Functional Probes, College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Xiaonan Sun
- MOE Key Laboratory of Laser Life Science & Guangdong Provincial Key Laboratory of Laser Life Science, Guangzhou Key Laboratory of Spectral Analysis and Functional Probes, College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Weixing Li
- Department of Chemistry, Fudan University, Songhu Rd. 2005, 200438 Shanghai, China
| | - Jiwen Guan
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Zhenhao Liang
- MOE Key Laboratory of Laser Life Science & Guangdong Provincial Key Laboratory of Laser Life Science, Guangzhou Key Laboratory of Spectral Analysis and Functional Probes, College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Yongjun Hu
- MOE Key Laboratory of Laser Life Science & Guangdong Provincial Key Laboratory of Laser Life Science, Guangzhou Key Laboratory of Spectral Analysis and Functional Probes, College of Biophotonics, South China Normal University, Guangzhou 510631, China
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3
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Gao M, Zhang H, Liang S, Zhao S, Guo Z, Hang Y. Behavior of carbon nanotube-asphalt composites for dioxide capture based on molecular simulation. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.139756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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4
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Lyu Z, Hallett-Tapley G, Orlova G. A DFT study on radical-cationic methanol clusters: Structure, bonding and H-transfer. COMPUT THEOR CHEM 2020. [DOI: 10.1016/j.comptc.2019.112661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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5
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Endo T, Matsuda Y, Moriyama S, Fujii A. Infrared Spectroscopic Study on Trimethyl Amine Radical Cation: Correlation between Proton-Donating Ability and Structural Deformation. J Phys Chem A 2019; 123:5945-5950. [DOI: 10.1021/acs.jpca.9b01261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tomoya Endo
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3, Aramaki-Aza-Aoba, Aoba-ku, Sendai 980-8578, Miyagi, Japan
| | - Yoshiyuki Matsuda
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3, Aramaki-Aza-Aoba, Aoba-ku, Sendai 980-8578, Miyagi, Japan
| | - Shohei Moriyama
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3, Aramaki-Aza-Aoba, Aoba-ku, Sendai 980-8578, Miyagi, Japan
| | - Asuka Fujii
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3, Aramaki-Aza-Aoba, Aoba-ku, Sendai 980-8578, Miyagi, Japan
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6
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Wagner JP, Giles SM, Duncan MA. Gas phase infrared spectroscopy of the H2C NH2+ methaniminium cation. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.04.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Ando T, Iwasaki A, Yamanouchi K. Strong-field Fourier transform vibrational spectroscopy of methanol cation and its isotopologues using few-cycle near-infrared laser pulses. Mol Phys 2019. [DOI: 10.1080/00268976.2019.1572244] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Toshiaki Ando
- Department of Chemistry, School of Science, The University of Tokyo, Tokyo, Japan
| | - Atsushi Iwasaki
- Department of Chemistry, School of Science, The University of Tokyo, Tokyo, Japan
| | - Kaoru Yamanouchi
- Department of Chemistry, School of Science, The University of Tokyo, Tokyo, Japan
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8
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Jusko P, Brünken S, Asvany O, Thorwirth S, Stoffels A, van der Meer L, Berden G, Redlich B, Oomens J, Schlemmer S. The FELion cryogenic ion trap beam line at the FELIX free-electron laser laboratory: infrared signatures of primary alcohol cations. Faraday Discuss 2019; 217:172-202. [DOI: 10.1039/c8fd00225h] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The FELion beamline – a cryogenic 22-pole trap for vibrational spectroscopy of molecular ions at the FELIX Laboratory.
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Affiliation(s)
- Pavol Jusko
- I. Physikalisches Institut
- Universität zu Köln
- 50937 Köln
- Germany
| | - Sandra Brünken
- I. Physikalisches Institut
- Universität zu Köln
- 50937 Köln
- Germany
- Radboud University
| | - Oskar Asvany
- I. Physikalisches Institut
- Universität zu Köln
- 50937 Köln
- Germany
| | - Sven Thorwirth
- I. Physikalisches Institut
- Universität zu Köln
- 50937 Köln
- Germany
| | - Alexander Stoffels
- I. Physikalisches Institut
- Universität zu Köln
- 50937 Köln
- Germany
- Radboud University
| | - Lex van der Meer
- Radboud University
- Institute for Molecules and Materials
- FELIX Laboratory
- 6525 ED Nijmegen
- The Netherlands
| | - Giel Berden
- Radboud University
- Institute for Molecules and Materials
- FELIX Laboratory
- 6525 ED Nijmegen
- The Netherlands
| | - Britta Redlich
- Radboud University
- Institute for Molecules and Materials
- FELIX Laboratory
- 6525 ED Nijmegen
- The Netherlands
| | - Jos Oomens
- Radboud University
- Institute for Molecules and Materials
- FELIX Laboratory
- 6525 ED Nijmegen
- The Netherlands
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9
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Xie M, Matsuda Y, Fujii A. An infrared spectroscopic study on proton transfer from CH bonds in ionized dimers of cyclic ethers. J Chem Phys 2018. [DOI: 10.1063/1.5018639] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Affiliation(s)
- Min Xie
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3, Aramaki Aza-Aoba, Aoba-ku, Sendai 980-8578, Japan
| | - Yoshiyuki Matsuda
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3, Aramaki Aza-Aoba, Aoba-ku, Sendai 980-8578, Japan
| | - Asuka Fujii
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3, Aramaki Aza-Aoba, Aoba-ku, Sendai 980-8578, Japan
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10
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Dzugan LC, Matthews J, Sinha A, McCoy AB. Role of Torsion-Vibration Coupling in the Overtone Spectrum and Vibrationally Mediated Photochemistry of CH3OOH and HOOH. J Phys Chem A 2017; 121:9262-9274. [DOI: 10.1021/acs.jpca.7b09778] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Laura C. Dzugan
- Department
of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Jamie Matthews
- Analyst Research Laboratories, Ilan Ramon St. 2, Ness Ziona 7403635, Israel
| | - Amitabha Sinha
- Department
of Chemistry and Biochemistry, University of California, 9500 Gilman
Drive, La Jolla, San Diego, California 92093, United States
| | - Anne B. McCoy
- Department
of Chemistry, University of Washington, Seattle, Washington 98195, United States
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11
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Endo T, Matsuda Y, Fujii A. Infrared Spectroscopic Study of the Acidic CH Bonds in Hydrated Clusters of Cationic Pentane. J Phys Chem Lett 2017; 8:4716-4719. [PMID: 28903004 DOI: 10.1021/acs.jpclett.7b02282] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Infrared spectroscopy of the hydrated clusters of cationic pentane, which are generated through the vacuum ultraviolet photoionization in the gas phase, is carried out to probe the acidic properties of their CH bonds. The monohydrated pentane cation forms the proton-shared structure, in which the proton of CH in cationic pentane is shared between the pentyl radical and water molecule. In the di- and trihydrated clusters, the proton of CH is completely transferred to the water moiety so that the clusters are composed of the pentyl radical and protonated water cluster. These results indicate that two water molecules are enough to cause the proton transfer from CH of cationic pentane, and thus its acidity is highly enhanced with the ionization.
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Affiliation(s)
- Tomoya Endo
- Department of Chemistry, Graduate School of Science, Tohoku University , 6-3, Aramaki Aza-Aoba, Aoba-ku, Sendai 980-8578, Japan
| | - Yoshiyuki Matsuda
- Department of Chemistry, Graduate School of Science, Tohoku University , 6-3, Aramaki Aza-Aoba, Aoba-ku, Sendai 980-8578, Japan
| | - Asuka Fujii
- Department of Chemistry, Graduate School of Science, Tohoku University , 6-3, Aramaki Aza-Aoba, Aoba-ku, Sendai 980-8578, Japan
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12
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Ziemkiewicz MP, Pluetzer C, Wojcik M, Loreau J, van der Avoird A, Nesbitt DJ. Near infrared overtone (vOH = 2 ← 0) spectroscopy of Ne–H2O clusters. J Chem Phys 2017; 146:104204. [DOI: 10.1063/1.4977061] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Michael P. Ziemkiewicz
- JILA, National Institute of Standards and Technology, University of Colorado and Department of Chemistry and Biochemistry, University of Colorado at Boulder, Boulder, Colorado 80309, USA
| | - Christian Pluetzer
- JILA, National Institute of Standards and Technology, University of Colorado and Department of Chemistry and Biochemistry, University of Colorado at Boulder, Boulder, Colorado 80309, USA
| | - Michael Wojcik
- JILA, National Institute of Standards and Technology, University of Colorado and Department of Chemistry and Biochemistry, University of Colorado at Boulder, Boulder, Colorado 80309, USA
| | - Jérôme Loreau
- Service de Chimie Quantique et Photophysique, Université Libre de Bruxelles, 50 av. F.D. Roosevelt, CP 160/09, 1050 Brussels, Belgium
| | - Ad van der Avoird
- Theoretical Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - David J. Nesbitt
- JILA, National Institute of Standards and Technology, University of Colorado and Department of Chemistry and Biochemistry, University of Colorado at Boulder, Boulder, Colorado 80309, USA
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13
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Oomens J, Berden G, Morton TH. Low-Frequency CH Stretch Vibrations of Free Alkoxide Ions. Angew Chem Int Ed Engl 2016; 56:217-220. [PMID: 27921354 DOI: 10.1002/anie.201609437] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Indexed: 11/10/2022]
Abstract
CH stretches in hydrocarbon cations often shift to lower frequencies relative to neutral molecules, because they do not have sufficient electrons to give every bond an electron pair. A parallel effect in negatively charged species has not been previously observed. Here we show that CH bond weakening occurs in alkoxide anions as a consequence of hyperconjugation. The reasoning differs somewhat from the case of positively charged ions, but the net effect is the same: to lower CH stretching frequencies by hundreds of wavenumbers.
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Affiliation(s)
- Jos Oomens
- Radboud University, Institute for Molecules and Materials, FELIX Laboratory, Toernooiveld 7c, 6525ED, Nijmegen, The Netherlands.,van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098XH, Amsterdam, The Netherlands
| | - Giel Berden
- Radboud University, Institute for Molecules and Materials, FELIX Laboratory, Toernooiveld 7c, 6525ED, Nijmegen, The Netherlands
| | - Thomas Hellman Morton
- Department of Chemistry, University of California, Riverside, Riverside, CA, 92521-0403, USA
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14
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Oomens J, Berden G, Morton TH. Low‐Frequency CH Stretch Vibrations of Free Alkoxide Ions. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201609437] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jos Oomens
- Radboud University Institute for Molecules and Materials, FELIX Laboratory, Toernooiveld 7c 6525ED Nijmegen The Netherlands
- van't Hoff Institute for Molecular Sciences University of Amsterdam Science Park 904 1098XH Amsterdam The Netherlands
| | - Giel Berden
- Radboud University Institute for Molecules and Materials, FELIX Laboratory, Toernooiveld 7c 6525ED Nijmegen The Netherlands
| | - Thomas Hellman Morton
- Department of Chemistry University of California, Riverside Riverside CA 92521-0403 USA
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15
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Mauney DT, Mosley JD, Madison LR, McCoy AB, Duncan MA. Infrared spectroscopy and theory of the formaldehyde cation and its hydroxymethylene isomer. J Chem Phys 2016; 145:174303. [DOI: 10.1063/1.4966214] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- D. T. Mauney
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, USA
| | - J. D. Mosley
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, USA
| | - L. R. Madison
- Department of Chemistry, University of Washington, Seattle, Washington 98195, USA
| | - A. B. McCoy
- Department of Chemistry, University of Washington, Seattle, Washington 98195, USA
| | - M. A. Duncan
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, USA
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16
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Xie M, Matsuda Y, Fujii A. Infrared Spectroscopic Investigation of the Acidic CH Bonds in Cationic n-Alkanes: Pentane, Hexane, and Heptane. J Phys Chem A 2016; 120:6351-6. [DOI: 10.1021/acs.jpca.6b05567] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Min Xie
- Department of Chemistry,
Graduate School of Science, Tohoku University, 6-3, Aramaki Aza-Aoba, Aoba-ku, Sendai 980-8578, Japan
| | - Yoshiyuki Matsuda
- Department of Chemistry,
Graduate School of Science, Tohoku University, 6-3, Aramaki Aza-Aoba, Aoba-ku, Sendai 980-8578, Japan
| | - Asuka Fujii
- Department of Chemistry,
Graduate School of Science, Tohoku University, 6-3, Aramaki Aza-Aoba, Aoba-ku, Sendai 980-8578, Japan
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17
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Hsu KH, Huang YH, Lee YP, Huang M, Miller TA, McCoy AB. Manifestations of Torsion-CH Stretch Coupling in the Infrared Spectrum of CH3OO. J Phys Chem A 2016; 120:4827-37. [DOI: 10.1021/acs.jpca.5b12334] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kuo-Hsiang Hsu
- Department
of Applied Chemistry and Institute of Molecular Science, National Chiao Tung University, 1001 Ta-Hsueh Rd., Hsinchu 30010, Taiwan
| | - Yu-Hsuan Huang
- Department
of Applied Chemistry and Institute of Molecular Science, National Chiao Tung University, 1001 Ta-Hsueh Rd., Hsinchu 30010, Taiwan
| | - Yuan-Pern Lee
- Department
of Applied Chemistry and Institute of Molecular Science, National Chiao Tung University, 1001 Ta-Hsueh Rd., Hsinchu 30010, Taiwan
- Institute
of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
| | - Meng Huang
- Department
of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Terry A. Miller
- Department
of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Anne B. McCoy
- Department
of Chemistry, University of Washington, Seattle, Washington 98195, United States
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18
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Leicht D, Cheng T, Duncan M. Infrared spectroscopy of the glyoxal radical cation: The charge dependence of internal rotation. Chem Phys Lett 2016. [DOI: 10.1016/j.cplett.2015.11.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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19
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Matsuda Y, Harigaya H, Xie M, Takahashi K, Fujii A. Infrared spectroscopic investigations of cationic ethanol, propanol, and butanol. Chem Phys Lett 2015. [DOI: 10.1016/j.cplett.2015.10.044] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Xie M, Matsuda Y, Fujii A. Infrared Spectroscopic Investigation of Photoionization-Induced Acidic C–H Bonds in Cyclic Ethers. J Phys Chem A 2015; 119:5668-75. [DOI: 10.1021/acs.jpca.5b03406] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Min Xie
- Department of Chemistry, Graduate School of Science, Tohoku University, Aramaki-Aza-Aoba,
Aoba-ku, Sendai, 980-8578 Miyagi, Japan
| | - Yoshiyuki Matsuda
- Department of Chemistry, Graduate School of Science, Tohoku University, Aramaki-Aza-Aoba,
Aoba-ku, Sendai, 980-8578 Miyagi, Japan
| | - Asuka Fujii
- Department of Chemistry, Graduate School of Science, Tohoku University, Aramaki-Aza-Aoba,
Aoba-ku, Sendai, 980-8578 Miyagi, Japan
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21
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Morita M, Matsuda Y, Endo T, Mikami N, Fujii A, Takahashi K. Hyperconjugation in diethyl ether cation versus diethyl sulfide cation. Phys Chem Chem Phys 2015; 17:23602-12. [DOI: 10.1039/c5cp03765d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electron donation from the CH bond to the single occupied orbital is observed through the large red shift in the CH stretching band for the diethyl ether cation.
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Affiliation(s)
- Masato Morita
- Institute of Atomic and Molecular Sciences
- Academia Sinica
- Taipei
- Republic of China
| | - Yoshiyuki Matsuda
- Department of Chemistry
- Graduate School of Science
- Tohoku University
- Sendai 980-8578
- Japan
| | - Tomoya Endo
- Department of Chemistry
- Graduate School of Science
- Tohoku University
- Sendai 980-8578
- Japan
| | - Naohiko Mikami
- 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
| | - Kaito Takahashi
- Institute of Atomic and Molecular Sciences
- Academia Sinica
- Taipei
- Republic of China
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