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Heller J, Ončák M, Bersenkowitsch NK, van der Linde C, Beyer MK. Infrared multiple photon dissociation of cesium iodide clusters doped with mono-, di- and triglycine. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2019; 25:122-132. [PMID: 30284923 PMCID: PMC7100558 DOI: 10.1177/1469066718803307] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Charged cesium iodide clusters doped with mono-, di- and triglycine serve as a model system for sea salt aerosols containing biological molecules. Here, we investigate reactions of these complexes under infrared irradiation, with spectra obtained by infrared multiple photon dissociation. The cluster ions are generated via electrospray ionization and analyzed in the cell of a Fourier Transform Ion Cyclotron Resonance Mass Spectrometer. Depending on the cluster size and peptide length, loss of HI or loss of a glycine unit is observed. The experimental measurements are supported by quantum chemical calculations. We show that N-H and O-H stretching modes dominate the spectrum, with large shifts depending on local interactions, namely due to interaction with iodide anions or intramolecular hydrogen bonding. Both experiment and theory indicate that several isomers are present in the experimental mixture, with different infrared fingerprints as well as dissociation pathways.
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Affiliation(s)
- Jakob Heller
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Innsbruck, Austria
| | - Milan Ončák
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Innsbruck, Austria
| | - Nina K Bersenkowitsch
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Innsbruck, Austria
| | | | - Martin K Beyer
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Innsbruck, Austria
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Liu CG, Sun C, Jiang MX, Zhang LL, Sun MJ. Calculations of NO reduction with CO over a Cu1/PMA single-atom catalyst: a study of surface oxygen species, active sites, and the reaction mechanism. Phys Chem Chem Phys 2019; 21:9975-9986. [DOI: 10.1039/c9cp01092k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Density functional theory calculations have been employed to probe the reaction mechanism of NO reduction with CO over a Cu1/PMA (PMA is the phosphomolybdate, Cs3PMo12O40) single-atom catalyst.
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Affiliation(s)
- Chun-Guang Liu
- College of Chemical Engineering
- Northeast Electric Power University
- Jilin City
- P. R. China
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources
| | - Cong Sun
- College of Chemical Engineering
- Northeast Electric Power University
- Jilin City
- P. R. China
| | - Meng-Xu Jiang
- College of Chemical Engineering
- Northeast Electric Power University
- Jilin City
- P. R. China
| | - Li-Long Zhang
- College of Chemical Engineering
- Northeast Electric Power University
- Jilin City
- P. R. China
| | - Mo-Jie Sun
- College of Chemical Engineering
- Northeast Electric Power University
- Jilin City
- P. R. China
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Bersenkowitsch NK, Ončák M, Heller J, van der Linde C, Beyer MK. Photodissociation of Sodium Iodide Clusters Doped with Small Hydrocarbons. Chemistry 2018; 24:12433-12443. [PMID: 29979470 PMCID: PMC6120481 DOI: 10.1002/chem.201803017] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Indexed: 11/07/2022]
Abstract
Marine aerosols consist of a variety of compounds and play an important role in many atmospheric processes. In the present study, sodium iodide clusters with their simple isotope pattern serve as model systems for laboratory studies to investigate the role of iodide in the photochemical processing of sea-salt aerosols. Salt clusters doped with camphor, formate and pyruvate are studied in a Fourier transform ion cyclotron resonance mass spectrometer (FT-ICR MS) coupled to a tunable laser system in both UV and IR range. The analysis is supported by ab initio calculations of absorption spectra and energetics of dissociative channels. We provide quantitative analysis of IRMPD measurements by reconstructing one-photon spectra and comparing them with the calculated ones. While neutral camphor is adsorbed on the cluster surface, the formate and pyruvate ions replace an iodide ion. The photodissociation spectra revealed several wavelength-specific fragmentation pathways, including the carbon dioxide radical anion formed by photolysis of pyruvate. Camphor and pyruvate doped clusters absorb in the spectral region above 290 nm, which is relevant for tropospheric photochemistry, leading to internal conversion followed by intramolecular vibrational redistribution, which leads to decomposition of the cluster. Potential photodissociation products of pyruvate in the actinic region may be formed with a cross section of <2×10-20 cm2 , determined by the experimental noise level.
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Affiliation(s)
- Nina K. Bersenkowitsch
- Institut für Ionenphysik und Angewandte PhysikUniversität InnsbruckTechnikerstraße 256020InnsbruckAustria
| | - Milan Ončák
- Institut für Ionenphysik und Angewandte PhysikUniversität InnsbruckTechnikerstraße 256020InnsbruckAustria
| | - Jakob Heller
- Institut für Ionenphysik und Angewandte PhysikUniversität InnsbruckTechnikerstraße 256020InnsbruckAustria
| | - Christian van der Linde
- Institut für Ionenphysik und Angewandte PhysikUniversität InnsbruckTechnikerstraße 256020InnsbruckAustria
| | - Martin K. Beyer
- Institut für Ionenphysik und Angewandte PhysikUniversität InnsbruckTechnikerstraße 256020InnsbruckAustria
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Tsuruta M, Furuya A, Ohno K, Lintuluoto M, Misaizu F. Adsorption of Small Molecules with the Hydroxyl Group on Sodium Halide Cluster Ions. J Phys Chem A 2009; 114:1432-6. [DOI: 10.1021/jp9072312] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Mamoru Tsuruta
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki, Aoba-ku, Sendai 980-8578, Japan, and Department of Environmental Information, Kyoto Prefectural University, Shimogamo, Sakyo-ku, Kyoto 606-8522, Japan
| | - Ari Furuya
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki, Aoba-ku, Sendai 980-8578, Japan, and Department of Environmental Information, Kyoto Prefectural University, Shimogamo, Sakyo-ku, Kyoto 606-8522, Japan
| | - Koichi Ohno
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki, Aoba-ku, Sendai 980-8578, Japan, and Department of Environmental Information, Kyoto Prefectural University, Shimogamo, Sakyo-ku, Kyoto 606-8522, Japan
| | - Masami Lintuluoto
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki, Aoba-ku, Sendai 980-8578, Japan, and Department of Environmental Information, Kyoto Prefectural University, Shimogamo, Sakyo-ku, Kyoto 606-8522, Japan
| | - Fuminori Misaizu
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki, Aoba-ku, Sendai 980-8578, Japan, and Department of Environmental Information, Kyoto Prefectural University, Shimogamo, Sakyo-ku, Kyoto 606-8522, Japan
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