1
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Hiraki S, Baba H, Kobayashi I, Oda A, Ohkubo T, Ikemoto Y, Moriwaki T, Kuroda Y. Excellent capture of N 2O functioning at RT and lower pressure by utilizing an NaCaA-85 zeolite. Chem Commun (Camb) 2024; 60:4597-4600. [PMID: 38586897 DOI: 10.1039/d4cc00599f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
We have found an efficient adsorption feature provided by an NaCaA-85 zeolite for N2O even at 298 K and at lower pressures: N2O adsorption capacities of 1.33 mmol g-1 and 4.69 mmol g-1 under respective pressures of 0.3 and at 100 Torr, respectively, indicating the best performance among adsorbent materials so far reported. These adsorption peculiarities will pave a new way for developing excellent materials working for adsorption/separation processes of N2O.
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Affiliation(s)
- Suguru Hiraki
- Department of Chemistry, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan.
| | - Haruka Baba
- Department of Chemistry, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan.
| | - Ikuka Kobayashi
- Department of Chemistry, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan.
| | - Akira Oda
- Department of Chemistry, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan.
- Department of Materials chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Takahiro Ohkubo
- Department of Chemistry, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan.
| | - Yuka Ikemoto
- Japan Synchrotron Radiation Research Institute (JASRI), 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - Taro Moriwaki
- Japan Synchrotron Radiation Research Institute (JASRI), 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - Yasushige Kuroda
- Department of Chemistry, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan.
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2
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Blohm A, Domes C, Frosch T. Isotopomeric Peak Assignment for N 2O in Cross-Labeling Experiments by Fiber-Enhanced Raman Multigas Spectroscopy. Anal Chem 2024. [PMID: 38315571 PMCID: PMC10882577 DOI: 10.1021/acs.analchem.3c04236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
Human intervention in nature, especially fertilization, greatly increased the amount of N2O emission. While nitrogen fertilizer is used to improve nitrogen availability and thus plant growth, one negative side effect is the increased emission of N2O. Successful regulation and optimization strategies require detailed knowledge of the processes producing N2O in soil. Nitrification and denitrification, the main processes responsible for N2O emissions, can be differentiated using isotopic analysis of N2O. The interplay between these processes is complex, and studies to unravel the different contributions require isotopic cross-labeling and analytical techniques that enable tracking of the labeled compounds. Fiber-enhanced Raman spectroscopy (FERS) was exploited for sensitive quantification of N2O isotopomers alongside N2, O2, and CO2 in multigas compositions and in cross-labeling experiments. FERS enabled the selective and sensitive detection of specific molecular vibrations that could be assigned to various isotopomer peaks. The isotopomers 14N15N16O (2177 cm-1) and 15N14N16O (2202 cm-1) could be clearly distinguished, allowing site-specific measurements. Also, isotopomers containing different oxygen isotopes, such as 14N14N17O, 14N14N18O, 15N15N16O, and 15N14N18O could be identified. A cross-labeling showed the capability of FERS to disentangle the contributions of nitrification and denitrification to the total N2O fluxes while quantifying the total sample headspace composition. Overall, the presented results indicate the potential of FERS for isotopic studies of N2O, which could provide a deeper understanding of the different pathways of the nitrogen cycle.
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Affiliation(s)
- Annika Blohm
- Leibniz Institute of Photonic Technology, Albert Einstein Str. 9, 07745 Jena, Germany
| | - Christian Domes
- Leibniz Institute of Photonic Technology, Albert Einstein Str. 9, 07745 Jena, Germany
| | - Torsten Frosch
- Biophotonics and Biomedical Engineering Group, Technical University Darmstadt, Merckstr. 25, 64283 Darmstadt, Germany
- Leibniz Institute of Photonic Technology, Albert Einstein Str. 9, 07745 Jena, Germany
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3
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Mino L, Cazzaniga M, Moriggi F, Ceotto M. Elucidating NO x Surface Chemistry at the Anatase (101) Surface in TiO 2 Nanoparticles. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2023; 127:437-449. [PMID: 36660096 PMCID: PMC9841571 DOI: 10.1021/acs.jpcc.2c07489] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/12/2022] [Indexed: 06/17/2023]
Abstract
Understanding NO x chemistry at titania nanoparticle surfaces is important for photocatalytic environmental remediation processes. We focus on this problem and put forward an experimental-computational approach based on vibrational spectroscopy grounds. Temperature-dependent IR experiments of NO x adsorption on shape-engineered nanoparticle (101) anatase surfaces are paired with power spectra obtained from Born-Oppenheimer trajectories. Then, the harmonic versus anharmonic vibrational frequencies of several adsorption scenarios are directly compared with the IR experiments. We conclude that molecules are adsorbed mainly by the N-end side and both the intermolecular interactions between adsorbed molecules and (NO)2 dimer formation are responsible for the main NO adsorption spectroscopic features. We also investigate the spectroscopy and the mechanism of formation on defective anatase surfaces of the long-lived greenhouse gas N2O.
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Affiliation(s)
- Lorenzo Mino
- Department
of Chemistry and NIS Centre, University
of Torino, Via Giuria
7, I-10125 Torino, Italy
| | - Marco Cazzaniga
- Dipartimento
di Chimica, Università Degli Studi
di Milano, Via Golgi 19, I-20133 Milano, Italy
| | - Francesco Moriggi
- Dipartimento
di Chimica, Università Degli Studi
di Milano, Via Golgi 19, I-20133 Milano, Italy
| | - Michele Ceotto
- Dipartimento
di Chimica, Università Degli Studi
di Milano, Via Golgi 19, I-20133 Milano, Italy
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4
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Mondal A, Reddy KP, Som S, Chopra D, Kundu S. Nitrate and Nitrite Reductions at Copper(II) Sites: Role of Noncovalent Interactions from Second-Coordination-Sphere. Inorg Chem 2022; 61:20337-20345. [DOI: 10.1021/acs.inorgchem.2c02775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Affiliation(s)
- Aditesh Mondal
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISERTVM), Thiruvananthapuram 695551, India
| | - Kiran P. Reddy
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISERTVM), Thiruvananthapuram 695551, India
| | - Shubham Som
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal (IISERB), Bhopal Bypass Road, Bhauri, Bhopal 462066, India
| | - Deepak Chopra
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal (IISERB), Bhopal Bypass Road, Bhauri, Bhopal 462066, India
| | - Subrata Kundu
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISERTVM), Thiruvananthapuram 695551, India
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5
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Mikhailov AA, Woike T, Gansmüller A, Schaniel D, Kostin GA. Photoinduced linkage isomers in a model ruthenium nitrosyl complex: Identification and assignment of vibrational modes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 263:120217. [PMID: 34343843 DOI: 10.1016/j.saa.2021.120217] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 06/30/2021] [Accepted: 07/17/2021] [Indexed: 06/13/2023]
Abstract
Photoinduced NO-linkage isomers were investigated in the solid state of labelled trans-[Ru(14/15NO)(py4)F](ClO4)2 complex by combined IR-spectroscopy and DFT calculations. Based on the experimental data and the DFT calculations of this isotopically labelled 14/15NO nitrosyl compound, we present a complete assignment of the vibrational bands of three nitrosyl linkage isomers in a range from 4000 to 200 cm-1. The calculated IR-spectra match well with the experimental data allowing reliable assignment of the vibrational bands. The structural change from the Ru-NO (GS) to the Ru-ON (MS1) and Ru-η2-(NO) (MS2) linkage configuration leads to the downshift of the ν(NO) and ν(Ru-(NO)) bands, and a corresponding increase of the energy of the ν(Ru-F) band. The shift of the bands corresponds to the change of the Ru-(NO) and Ru-F bond lengths: increase of the Ru-(NO) bond length leads to the decrease of the energy of the ν(Ru-(NO)) band; decrease of the Ru-F bond length leads to the increase of the energy of the ν(Ru-F) band. These observations can be extrapolated to the family of related nitrosyl complexes and therefore be used for the qualitative prediction of the Ru-(NO) and Ru-Ltrans-to-NO bond lengths of different linkage isomers in the framework of one complex. While the formation of linkage isomers is a reversible process, long-time irradiation sometimes induces irreversible reactions such as the release of NO. Here, we show that the photolysis of trans-[Ru(14/15NO)(py4)F](ClO4)2 in KBr pellets may lead to the release of nitrous oxide N2O, conceivably through the formation of a {Ru-(κ2-ONNO)} intermediate.
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Affiliation(s)
- Artem A Mikhailov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 3 Acad. Lavrentiev Avenue, Novosibirsk 630090, Russian Federation
| | - Theo Woike
- Université de Lorraine, CNRS, CRM2, UMR 7036, Nancy 54000, France
| | - Axel Gansmüller
- Université de Lorraine, CNRS, CRM2, UMR 7036, Nancy 54000, France
| | - Dominik Schaniel
- Université de Lorraine, CNRS, CRM2, UMR 7036, Nancy 54000, France
| | - Gennadiy A Kostin
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 3 Acad. Lavrentiev Avenue, Novosibirsk 630090, Russian Federation
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6
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Ault BS. A comparison of the wavelength-dependent photochemical reactions of ozone with vinyl bromide and fluoride in argon matrices. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130445] [Citation(s) in RCA: 1] [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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7
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Shiryaeva ES, Baranova IA, Tyurin DA, Feldman VI. Reactions of radiation-induced electrons with carbon dioxide in inert cryogenic films: matrix tuning of the excess electron interactions in solids. Phys Chem Chem Phys 2020; 22:14155-14161. [PMID: 32609111 DOI: 10.1039/d0cp01578d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A single-electron reduction of carbon dioxide is supposed to be an important basic step in various processes, ranging from interstellar chemistry to photocatalytic transformations. In this work, we report an FTIR spectroscopic study on the reactions of carbon dioxide (12CO2 and 13CO2) with the radiation-induced excess electrons in deposited cryogenic matrices with different physical characteristics (Ne, N2, Ar, Xe) occurring at 6 K. The reaction was monitored by the observation of carbon dioxide radical anions. It was found that attachment of excess electrons to CO2 occurred in neon and nitrogen matrices, but not in argon and xenon. In the case of nitrogen, the formation of matrix-related cationic species (N4+˙ and NNCO+˙) was also observed. Since the CO2 molecules have a negative intrinsic electron affinity, it was suggested that the electron attachment to CO2 is controlled by the energy of excess electrons in the solid matrix, which is determined by the value of the corresponding conduction band bottom energy (V0). The implications of the obtained results are discussed.
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8
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Ault BS. Matrix isolation investigation of the wavelength-dependent photochemical reaction of ozone with vinyl chloride. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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9
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Theoretical characterization of the photochemical reaction CO2 + O(3P) → CO + O2 related to experiments in solid krypton. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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10
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Lu B, Qin YY, Song C, Qian WY, Wang LN, Zeng XQ. O2-oxidation of cyanomethylene radical: Infrared identification of criegee intermediates syn- and anti-NCC(H)OO. CHINESE J CHEM PHYS 2020. [DOI: 10.1063/1674-0068/cjcp2001004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Bo Lu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Yuan-yuan Qin
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Chao Song
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Wei-yu Qian
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Li-na Wang
- Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Xiao-qing Zeng
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
- Department of Chemistry, Fudan University, Shanghai 200433, China
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11
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Manda H, Miyazaki J, Yamada Y. Matrix isolation infrared spectroscopic study of the photochemistry of bis(cyclopentadienyl)dicarbonyl titanium in solid nitrogen. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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12
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Lu B, Song C, Qian W, Wu Z, Császár AG, Zeng X. Heterocumulenic carbene nitric oxide radical OCCNO˙. Chem Commun (Camb) 2019; 55:13510-13513. [PMID: 31584053 DOI: 10.1039/c9cc07056g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The elusive heterocumulenic radical OCCNO˙ and its isotopologues OC13CNO˙ and OCC15NO˙ have been prepared by reacting photolytically generated unsaturated carbene OCC/OC13C with ˙NO/15˙NO in cryogenic N2-, Ar-, and Ne-matrices. Upon UV-light (365 nm) irradiation, the C-C bond in OCCNO˙ breaks and yields a long-sought ground-state radical CNO˙ (X2Π), which has also been identified with matrix-isolation infrared spectroscopy.
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Affiliation(s)
- Bo Lu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China.
| | - Chao Song
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China.
| | - Weiyu Qian
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China.
| | - Zhuang Wu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China.
| | - Attila G Császár
- MTA-ELTE Complex Chemical Systems Research Group, Laboratory of Molecular Structure and Dynamics, Institute of Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary
| | - Xiaoqing Zeng
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China. and Department of Chemistry, Fudan University, 200433 Shanghai, China.
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13
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Ault BS. Matrix isolation study of the reaction of O (3P) with 1,3 butadiene: Unexpected formation of ethylketene. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.08.071] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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14
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Dong X, Deng G, Xu J, Li H, Zeng X. Decomposition of Sulfonyl Azide Isocyanate and Sulfonyl Diazide: The Oxygen-Shifted Curtius Rearrangement via Sulfonyl Nitrenes. J Phys Chem A 2018; 122:8511-8519. [DOI: 10.1021/acs.jpca.8b06655] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xuelin Dong
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China
| | - Guohai Deng
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China
| | - Jian Xu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China
| | - Hongmin Li
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China
| | - Xiaoqing Zeng
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China
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15
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Asfin RE, Kolomiitsova TD, Shchepkin DN, Tokhadze KG. Infrared Studies of the Symmetry Changes of the 28SiH 4 Molecule in Low-Temperature Matrixes. Fundamental, Combination, and Overtone Transitions. J Phys Chem A 2017. [PMID: 28629214 DOI: 10.1021/acs.jpca.7b02798] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Infrared spectra of 28SiH4 in argon and nitrogen matrixes at low temperature 6.5-20 K in the region of overtone and combination transitions were recorded for the first time. Additionally, the high-resolution spectra were obtained in the fundamental region. The frequencies and the relative intensities of all bands were determined. The set of experimental data suggests that the symmetry of molecules studied in the matrixes is different from the symmetry of the free molecules because of an interaction with the environment. The symmetry of 28SiH4 changes from Td to C3v on transition from the gas phase to a nitrogen matrix and to D2d on transition to an argon matrix. A modeling of SiH4 molecule force fields explains the experimental data as a change of a force constant of the selected SiH bond in the case of SiH4 in the nitrogen matrix or force constants of two opposite angles in the case of SiH4 in the argon matrix. In spite of small values of these changes, they result in noticeable spectroscopic effects: the band splitting and appearance of new bands in matrix spectra compared with spectra of free SiH4. The interpretation of transitions in the fundamental and combination regions was performed.
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Affiliation(s)
- Ruslan E Asfin
- Physical Faculty, St. Petersburg State University , 7/9 Universitetskaya Nab., 199034 Saint Petersburg, Russia
| | - Tatjana D Kolomiitsova
- Physical Faculty, St. Petersburg State University , 7/9 Universitetskaya Nab., 199034 Saint Petersburg, Russia
| | - Dmitrii N Shchepkin
- Physical Faculty, St. Petersburg State University , 7/9 Universitetskaya Nab., 199034 Saint Petersburg, Russia
| | - Konstantin G Tokhadze
- Physical Faculty, St. Petersburg State University , 7/9 Universitetskaya Nab., 199034 Saint Petersburg, Russia
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16
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Hudson RL, Loeffler MJ, Gerakines PA. Infrared spectra and band strengths of amorphous and crystalline N2O. J Chem Phys 2017; 146:024304. [DOI: 10.1063/1.4973548] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- R. L. Hudson
- Astrochemistry Laboratory, NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
| | - M. J. Loeffler
- Astrochemistry Laboratory, NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
| | - P. A. Gerakines
- Astrochemistry Laboratory, NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
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17
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Gaviglio C, Pellegrino J, Milstein D, Doctorovich F. NO˙ disproportionation by a {RhNO}9 pincer-type complex. Dalton Trans 2017; 46:16878-16884. [DOI: 10.1039/c7dt03944a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
NO˙ disproportionation by the pincer-type complex [Rh(PCPtBu)(NO)]˙ (1˙) results in the formation of Rh(PCPtBu)(NO)(NO2) (2) with coordinated nitrite and quantitative release of N2O.
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Affiliation(s)
- Carina Gaviglio
- Comisión Nacional de Energía Atómica
- CAC-GIyANN
- Departamento de Física de la Materia Condensada
- Buenos Aires
- Argentina
| | - Juan Pellegrino
- Departamento de Química Inorgánica
- Analítica
- y Química Física
- Facultad de Ciencias Exactas y Naturales
- Universidad de Buenos Aires. INQUIMAE-CONICET
| | - David Milstein
- Department of Organic Chemistry
- The Weizmann Institute of Science
- Rehovot
- Israel
| | - Fabio Doctorovich
- Departamento de Química Inorgánica
- Analítica
- y Química Física
- Facultad de Ciencias Exactas y Naturales
- Universidad de Buenos Aires. INQUIMAE-CONICET
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18
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Krupa J, Wierzejewska M. New aspects of UV photolysis of hydrogen peroxide. Nitrogen matrix isolation FTIR and theoretical studies. J Photochem Photobiol A Chem 2016. [DOI: 10.1016/j.jphotochem.2016.07.033] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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19
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Walter MR, Dzul SP, Rodrigues AV, Stemmler TL, Telser J, Conradie J, Ghosh A, Harrop TC. Synthesis of CoII–NO– Complexes and Their Reactivity as a Source of Nitroxyl. J Am Chem Soc 2016; 138:12459-71. [DOI: 10.1021/jacs.6b05896] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Melody R. Walter
- Department
of Chemistry and Center for Metalloenzyme Studies, The University of Georgia, 140 Cedar Street, Athens, Georgia 30602, United States
| | - Stephen P. Dzul
- Departments
of Pharmaceutical Sciences, Biochemistry, and Molecular Biology, Wayne State University, Detroit, Michigan 48201, United States
| | - Andria V. Rodrigues
- Departments
of Pharmaceutical Sciences, Biochemistry, and Molecular Biology, Wayne State University, Detroit, Michigan 48201, United States
| | - Timothy L. Stemmler
- Departments
of Pharmaceutical Sciences, Biochemistry, and Molecular Biology, Wayne State University, Detroit, Michigan 48201, United States
| | - Joshua Telser
- Department
of Biological, Chemical, and Physical Sciences, Roosevelt University, 430 South Michigan Avenue, Chicago, Illinois 60605, United States
| | - Jeanet Conradie
- Department
of Chemistry, University of the Free State, 9300 Bloemfontein, Republic of South Africa
| | - Abhik Ghosh
- Department
of Chemistry and Center for Theoretical and
Computational Chemistry, University of Tromsø, N-9037 Tromsø, Norway
| | - Todd C. Harrop
- Department
of Chemistry and Center for Metalloenzyme Studies, The University of Georgia, 140 Cedar Street, Athens, Georgia 30602, United States
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20
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Xu N, Christian JH, Dalal NS, Abucayon EG, Lingafelt C, Powell DR, Richter-Addo GB. Six-coordinate ferric porphyrins containing bidentate N-t-butyl-N-nitrosohydroxylaminato ligands: structure, magnetism, IR spectroelectrochemisty, and reactivity. Dalton Trans 2015; 44:20121-30. [PMID: 26530148 DOI: 10.1039/c5dt03074a] [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
NONOates (diazeniumdiolates) containing the [X{N2O2}](-) functional group are frequently employed as nitric oxide (NO) donors in biology, and some NONOates have been shown to bind to metalloenzymes. We report the preparation, crystal structures, detailed magnetic behavior, redox properties, and reactivities of the first isolable alkyl C-NONOate complexes of heme models, namely (OEP)Fe(η(2)-ON(t-Bu)NO) (1) and (TPP)Fe(η(2)-ON(t-Bu)NO) (2) (OEP = octaethylporphyrinato dianion, TPP = tetraphenylporphyrinato dianion). The compounds display the unusual NONOate O,O-bidentate binding mode for porphyrins, resulting in significant apical Fe displacements (+0.60 Å for 1, and +0.69 Å for 2) towards the axial ligands. Magnetic susceptibility and magnetization measurements made from 1.8-300 K at magnetic fields from 0.02 to 5 T, yielded magnetic moments of 5.976 and 5.974 Bohr magnetons for 1 and 2, respectively, clearly identifying them as high-spin (S = 5/2) ferric compounds. Variable-frequency (9.4 GHz and 34.5 GHz) EPR measurements, coupled with computer simulations, confirmed the magnetization results and yielded more precise values for the spin Hamiltonian parameters: g(avg) = 2.00 ± 0.03, |D| = 3.89 ± 0.09 cm(-1), and E/D = 0.07 ± 0.01 for both compounds, where D and E are the axial and rhombic zero-field splittings. IR spectroelectrochemistry studies reveal that the first oxidations of these compounds occur at the porphyrin macrocycles and not at the Fe-NONOate moieties. Reactions of 1 and 2 with a histidine mimic (1-methylimidazole) generate RNO and NO, both of which may bind to the metal center if sterics allow, as shown by a comparative study with the Cupferron complex (T(p-OMe)PP)Fe(η(2)-ON(Ph)NO). Protonation of 1 and 2 yields N2O as a gaseous product, presumably from the initial generation of HNO that dimerizes to the observed N2O product.
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Affiliation(s)
- Nan Xu
- Department of Chemistry and Biochemistry, University of Oklahoma, 101 Stephenson Parkway, Norman, OK 73019, USA. and Division of Mathematics and Natural Sciences, Penn State Altoona, 3000 Ivyside Park, Altoona, PA 16601, USA.
| | - Jonathan H Christian
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, FL 32306, USA.
| | - Naresh S Dalal
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, FL 32306, USA.
| | - Erwin G Abucayon
- Department of Chemistry and Biochemistry, University of Oklahoma, 101 Stephenson Parkway, Norman, OK 73019, USA.
| | - Colin Lingafelt
- Division of Mathematics and Natural Sciences, Penn State Altoona, 3000 Ivyside Park, Altoona, PA 16601, USA.
| | - Douglas R Powell
- Department of Chemistry and Biochemistry, University of Oklahoma, 101 Stephenson Parkway, Norman, OK 73019, USA.
| | - George B Richter-Addo
- Department of Chemistry and Biochemistry, University of Oklahoma, 101 Stephenson Parkway, Norman, OK 73019, USA.
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21
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Xu N, Abucayon EG, Powell DR, Richter-Addo GB. A bridged di-iron porphyrin hyponitrite complex as a model for biological N2O production from hyponitrite. Nitric Oxide 2015; 52:16-20. [PMID: 26529479 DOI: 10.1016/j.niox.2015.10.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Revised: 10/20/2015] [Accepted: 10/27/2015] [Indexed: 11/30/2022]
Abstract
Heme-hyponitrites are intermediates that form at the bimetallic active sites of bacterial nitric oxide reductases. To probe a possible effect of the Fe-Fe distance on hyponitrite stability, we prepared a bridged bis-porphyrin Fe-hyponitrite compound, namely [(OEP-CH2)Fe]2(μ2,η(1),η(1)-ONNO). Its υNO of 992 cm(-1) (υ15NO of 976 cm(-1)) is close to the υNO of 983 cm(-1) reported previously by us for the crystallographically characterized [(OEP)Fe]2(μ2,η(1),η(1)-ONNO) compound. The bridged bis-porphyrin Fe-hyponitrite complex is unstable with respect to N2O production, supporting the role of the bis-Fe porphyrin system in hyponitrite conversion to N2O. The preparation and crystallographic determination of the bridging sulfato derivative is also reported.
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Affiliation(s)
- Nan Xu
- Division of Mathematics and Natural Sciences, Penn State Altoona, 3000 Ivyside Park, Altoona, PA 16601, USA; Department of Chemistry and Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, Norman, OK 73019, USA.
| | - Erwin G Abucayon
- Department of Chemistry and Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, Norman, OK 73019, USA
| | - Douglas R Powell
- Department of Chemistry and Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, Norman, OK 73019, USA
| | - George B Richter-Addo
- Department of Chemistry and Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, Norman, OK 73019, USA.
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22
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Lasne J, Rosu-Finsen A, Cassidy A, McCoustra MRS, Field D. Spontaneously electrical solids in a new light. Phys Chem Chem Phys 2015. [DOI: 10.1039/c5cp03174e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Reflection–absorption infrared spectroscopy (RAIRS) of nitrous oxide (N2O) thin films is shown to provide an independent means of observing the spontelectric state; the first new structural phase of matter, with unique electrical properties, to have emerged in decades.
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Affiliation(s)
- Jérôme Lasne
- Institute of Chemical Sciences
- Heriot-Watt University
- Riccarton
- UK
| | | | - Andrew Cassidy
- Department of Physics and Astronomy
- Aarhus University
- DK-8000 Aarhus C
- Denmark
| | | | - David Field
- Department of Physics and Astronomy
- Aarhus University
- DK-8000 Aarhus C
- Denmark
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23
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Berto TC, Xu N, Lee SR, McNeil AJ, Alp EE, Zhao J, Richter-Addo GB, Lehnert N. Characterization of the Bridged Hyponitrite Complex {[Fe(OEP)]2(μ-N2O2)}: Reactivity of Hyponitrite Complexes and Biological Relevance. Inorg Chem 2014; 53:6398-414. [DOI: 10.1021/ic5002573] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Timothy C. Berto
- Department
of Chemistry and Department of Biophysics, University of Michigan, 930 N. University Avenue, Ann Arbor, Michigan 48109, United States
| | - Nan Xu
- Department
of Chemistry and Biochemistry, University of Oklahoma, 101 Stephenson
Parkway, Norman, Oklahoma 73019, United States
| | - Se Ryeon Lee
- Department
of Chemistry and Department of Biophysics, University of Michigan, 930 N. University Avenue, Ann Arbor, Michigan 48109, United States
| | - Anne J. McNeil
- Department
of Chemistry and Department of Biophysics, University of Michigan, 930 N. University Avenue, Ann Arbor, Michigan 48109, United States
| | - E. Ercan Alp
- Argonne National Laboratory, APS/XFD, 431/D003, Argonne, Illinois 60439, United States
| | - Jiyong Zhao
- Argonne National Laboratory, APS/XFD, 431/D003, Argonne, Illinois 60439, United States
| | - George B. Richter-Addo
- Department
of Chemistry and Biochemistry, University of Oklahoma, 101 Stephenson
Parkway, Norman, Oklahoma 73019, United States
| | - Nicolai Lehnert
- Department
of Chemistry and Department of Biophysics, University of Michigan, 930 N. University Avenue, Ann Arbor, Michigan 48109, United States
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24
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Ioppolo S, Fedoseev G, Minissale M, Congiu E, Dulieu F, Linnartz H. Solid state chemistry of nitrogen oxides – Part II: surface consumption of NO2. Phys Chem Chem Phys 2014; 16:8270-82. [DOI: 10.1039/c3cp54918f] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Efficient surface destruction mechanisms (NO2 + H/O/N), leading to solid H2O, NH2OH, and N2O, can explain the non-detection of NO2 in space.
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Affiliation(s)
- S. Ioppolo
- Division of Geological and Planetary Sciences
- California Institute of Technology
- Pasadena, USA
- Institute for Molecules and Materials
- Radboud University Nijmegen
| | - G. Fedoseev
- Raymond and Beverly Sackler Laboratory for Astrophysics
- Leiden Observatory
- Leiden University
- 2300 RA Leiden, The Netherlands
| | - M. Minissale
- LERMA-LAMAp
- Université de Cergy-Pontoise
- Observatoire de Paris
- ENS
- UPMC
| | - E. Congiu
- LERMA-LAMAp
- Université de Cergy-Pontoise
- Observatoire de Paris
- ENS
- UPMC
| | - F. Dulieu
- LERMA-LAMAp
- Université de Cergy-Pontoise
- Observatoire de Paris
- ENS
- UPMC
| | - H. Linnartz
- Raymond and Beverly Sackler Laboratory for Astrophysics
- Leiden Observatory
- Leiden University
- 2300 RA Leiden, The Netherlands
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25
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Cassidy A, Plekan O, Dunger J, Balog R, Jones NC, Lasne J, Rosu-Finsen A, McCoustra MRS, Field D. Investigations into the nature of spontelectrics: nitrous oxide diluted in xenon. Phys Chem Chem Phys 2014; 16:23843-53. [DOI: 10.1039/c4cp03659j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The recent discovery of a new class of solids displaying bulk spontaneous electric fields as high as 108 V m−1, so-called ‘spontelectrics’, poses fundamental and unresolved problems in solid state physics.
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Affiliation(s)
- Andrew Cassidy
- Department of Physics and Astronomy
- Aarhus University
- DK-8000 Aarhus C, Denmark
| | - Oksana Plekan
- Department of Physics and Astronomy
- Aarhus University
- DK-8000 Aarhus C, Denmark
| | - Jack Dunger
- Department of Physics and Astronomy
- Aarhus University
- DK-8000 Aarhus C, Denmark
| | - Richard Balog
- Department of Physics and Astronomy
- Aarhus University
- DK-8000 Aarhus C, Denmark
| | - Nykola C. Jones
- ISA
- Department of Physics and Astronomy
- Aarhus University
- DK-8000 Aarhus C, Denmark
| | - Jérôme Lasne
- Institute of Chemical Sciences
- Heriot-Watt University
- EH14 4AS Edinburgh, UK
| | | | | | - David Field
- Department of Physics and Astronomy
- Aarhus University
- DK-8000 Aarhus C, Denmark
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26
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Bil A, Grzechnik K, Mierzwicki K, Mielke Z. OH-Induced Oxidative Cleavage of Dimethyl Disulfide in the Presence of NO. J Phys Chem A 2013; 117:8263-73. [DOI: 10.1021/jp4047837] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Andrzej Bil
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383
Wrocław, Poland
| | - Katarzyna Grzechnik
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383
Wrocław, Poland
| | - Krzysztof Mierzwicki
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383
Wrocław, Poland
| | - Zofia Mielke
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383
Wrocław, Poland
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27
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Ioppolo S, Fedoseev G, Lamberts T, Romanzin C, Linnartz H. SURFRESIDE(2): an ultrahigh vacuum system for the investigation of surface reaction routes of interstellar interest. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2013; 84:073112. [PMID: 23902049 DOI: 10.1063/1.4816135] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A new ultrahigh vacuum experiment is described to study atom and radical addition reactions in interstellar ice analogues for astronomically relevant temperatures. The new setup - SURFace REaction SImulation DEvice (SURFRESIDE(2)) - allows a systematic investigation of solid state pathways resulting in the formation of molecules of astrophysical interest. The implementation of a double beam line makes it possible to expose deposited ice molecules to different atoms and/or radicals sequentially or at the same time. Special efforts are made to perform experiments under fully controlled laboratory conditions, including precise atom flux determinations, in order to characterize reaction channels quantitatively. In this way, we can compare and combine different surface reaction channels with the aim to unravel the solid state processes at play in space. Results are constrained in situ by means of a Fourier transform infrared spectrometer and a quadrupole mass spectrometer using reflection absorption infrared spectroscopy and temperature programmed desorption, respectively. The performance of the new setup is demonstrated on the example of carbon dioxide formation by comparing the efficiency through two different solid state channels (CO + OH → CO2 + H and CO + O → CO2) for which different addition products are needed. The potential of SURFRESIDE(2) to study complex molecule formation, including nitrogen containing (prebiotic) compounds, is discussed.
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Affiliation(s)
- S Ioppolo
- Sackler Laboratory for Astrophysics, Leiden Observatory, Leiden University, P.O. Box 9513, 2300 RA Leiden, The Netherlands.
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28
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Azizyan AS, Kurtikyan TS, Martirosyan GG, Ford PC. Tracking Reactive Intermediates by FTIR Monitoring of Reactions in Low-Temperature Sublimed Solids: Nitric Oxide Disproportionation Mediated by Ruthenium(II) Carbonyl Porphyrin Ru(TPP)(CO). Inorg Chem 2013; 52:5201-5. [DOI: 10.1021/ic400102q] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Arsen S. Azizyan
- Molecule Structure Research Center (MSRC)
of the Scientific and Technological Centre of Organic and Pharmaceutical
Chemistry, National Academy of Sciences, 0014,Yerevan, Armenia
| | - Tigran S. Kurtikyan
- Molecule Structure Research Center (MSRC)
of the Scientific and Technological Centre of Organic and Pharmaceutical
Chemistry, National Academy of Sciences, 0014,Yerevan, Armenia
| | - Garik G. Martirosyan
- Molecule Structure Research Center (MSRC)
of the Scientific and Technological Centre of Organic and Pharmaceutical
Chemistry, National Academy of Sciences, 0014,Yerevan, Armenia
| | - Peter C. Ford
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, California
93106-9510, United States
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29
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Grzechnik K, Mielke Z. Structure and photochemistry of nitrous acid–methanethiol complexes in solid argon. J Mol Struct 2012. [DOI: 10.1016/j.molstruc.2012.03.043] [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]
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30
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Congiu E, Chaabouni H, Laffon C, Parent P, Baouche S, Dulieu F. Efficient surface formation route of interstellar hydroxylamine through NO hydrogenation. I. The submonolayer regime on interstellar relevant substrates. J Chem Phys 2012; 137:054713. [DOI: 10.1063/1.4738895] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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31
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CHIEFFO LOGAN, AMSDEN JASONJ, SHATTUCK JEFFREY, HONG MIK, ZIEGLER LAWRENCE, ERRAMILLI SHYAMSUNDER. VIBRATIONAL INFRARED LIFETIME OF THE ANESTHETIC NITROUS OXIDE GAS IN SOLUTION. ACTA ACUST UNITED AC 2011. [DOI: 10.1142/s1793048006000240] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The lifetime of the asymmetric fundamental stretching 2218 cm-1 vibration of the anesthetic gas nitrous oxide ( N 2 O ) dissolved in octanol and olive oil is reported. These solvents are model systems commonly used to assess anesthetic potency. Picosecond time-scale molecular dynamics simulations have suggested that protein dynamics or membrane dynamics play a role in the molecular mechanism of anesthetic action. Ultrafast infrared spectroscopy with 100 fs time resolution is an ideal tool to probe dynamics of anesthetic molecules on such timescales. Pump-probe studies centered at the peak of the vibrational band yield a lifetime of 55 ± 1 ps in olive oil and 52 ± 1 ps in octanol. The similarity of lifetimes suggests that energy relaxation of the anesthetic is determined primarily by the hydrophobic nature of the environment, consistent with models of anesthetic action. The results show that nitrous oxide is a good model system for probing anesthetic-solvent interactions using nonlinear infrared spectroscopy.
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Affiliation(s)
- LOGAN CHIEFFO
- Department of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, MA-02215, USA
- Center for Photonics, Boston University, 8 St. Mary's Street, Boston, MA-02169, USA
| | - JASON J. AMSDEN
- Department of Physics, Boston University, 590 Commonwealth Avenue, Boston, MA-02215, USA
- Center for Photonics, Boston University, 8 St. Mary's Street, Boston, MA-02169, USA
| | - JEFFREY SHATTUCK
- Department of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, MA-02215, USA
- Center for Photonics, Boston University, 8 St. Mary's Street, Boston, MA-02169, USA
| | - MI K. HONG
- Department of Physics, Boston University, 590 Commonwealth Avenue, Boston, MA-02215, USA
- Center for Photonics, Boston University, 8 St. Mary's Street, Boston, MA-02169, USA
| | - LAWRENCE ZIEGLER
- Department of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, MA-02215, USA
- Center for Photonics, Boston University, 8 St. Mary's Street, Boston, MA-02169, USA
| | - SHYAMSUNDER ERRAMILLI
- Department of Physics, Boston University, 590 Commonwealth Avenue, Boston, MA-02215, USA
- Department of Biomedical Engineering, Boston University, 44 Cummington Street, Boston, MA-02169, USA
- Center for Photonics, Boston University, 8 St. Mary's Street, Boston, MA-02169, USA
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32
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Zheng W, Kim YS, Kaiser RI. Formation of nitric oxide and nitrous oxide in electron-irradiated H218O/N2 ice mixtures—evidence for the existence of free oxygen atoms in interstellar and solar system analog ices. Phys Chem Chem Phys 2011; 13:15749-54. [DOI: 10.1039/c1cp20528e] [Citation(s) in RCA: 10] [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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33
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Fulvio D, Sivaraman B, Baratta GA, Palumbo ME, Mason NJ. Novel measurements of refractive index, density and mid-infrared integrated band strengths for solid O(2), N(2)O and NO(2):N(2)O(4) mixtures. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2009; 72:1007-1013. [PMID: 19181567 DOI: 10.1016/j.saa.2008.12.030] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2008] [Accepted: 12/18/2008] [Indexed: 05/27/2023]
Abstract
We present novel measurements of the refractive index, density and integrated band strengths of mid-infrared features of solid N(2)O at 16K and of NO(2) and N(2)O(4) in two frozen NO(2):N(2)O(4) mixtures deposited at 16 and 60K. The refractive index and density measurements were performed also for frozen O(2) deposited at 16K. In this case, the integrated band strength values could not be determined since O(2) is a homonuclear molecule and therefore its fundamental mode is not infrared active. The solid samples were analysed by infrared spectroscopy in the 8000/800cm(-1) range. The sample thickness was measured by the interference curve obtained using a He-Ne laser operating at 543nm. The refractive index at this laser wavelength was obtained, by numerical methods, from the measured amplitude of the interference curve. The density values were obtained using the Lorentz-Lorenz relation. Integrated band strength values were then obtained by a linear fit of the integrated band intensities plotted versus column density values. The astrophysical relevance of these novel measurements is briefly discussed.
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Affiliation(s)
- D Fulvio
- Department of Physics & Astronomy, Catania University, Via S. Sofia 64, I-95123 Catania, Italy.
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34
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Watanabe S, Fujii H, Kohguchi H, Hatano T, Tokue I, Yamasaki K. Kinetic study of vibrational energy transfer from a wide range of vibrational levels of O2(X(3)Sigma(g)-, v = 6-12) to CF4. J Phys Chem A 2008; 112:9290-5. [PMID: 18593107 DOI: 10.1021/jp802201m] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A wide range of vibrational levels of O2(X(3)Sigma(g)(-), v = 6-13) generated in the ultraviolet photolysis of O3 was selectively detected by the laser-induced fluorescence (LIF) technique. The time-resolved LIF-excited B(3)Sigma(u)(-)-X(3)Sigma(g)(-) system in the presence of CF4 has been recorded and analyzed by the integrated profiles method (IPM). The IPM permitted us to determine the rate coefficients k(v)(CF4) for vibrational relaxation of O2(X(3)Sigma(g)(-), v = 6-12) by collisions with CF4. Energy transfer from O2 (v = 6-12) to CF4 is surprisingly efficient compared to that of other polyatomic relaxation partners studied so far. The k(v)(CF4) increases with vibrational quantum number v from [1.5 +/- 0.2(2sigma)] x 10(-12) for v = 6 to [7.3 +/- 1.5(2sigma)] x 10(-11) for v = 12, indicating that the infrared-active nu3 vibrational mode of CF4 mainly governs the energy transfer with O2(X(3)Sigma(g)(-), v = 6-12). The correlation between the rate coefficients and fundamental infrared intensities has been discussed based on a comparison of the efficiency of energy transfer by several collision partners.
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Affiliation(s)
- Shinji Watanabe
- Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
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35
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Chieffo LR, Shattuck JT, Pinnick E, Amsden JJ, Hong MK, Wang F, Erramilli S, Ziegler LD. Nitrous Oxide Vibrational Energy Relaxation Is a Probe of Interfacial Water in Lipid Bilayers. J Phys Chem B 2008; 112:12776-82. [DOI: 10.1021/jp8012283] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Logan R. Chieffo
- Department of Chemistry, Department of Physics, Department of Biomedical Engineering and the Photonics Center, Boston University, 590 Commonwealth Avenue, Boston, MA 02215
| | - Jeffrey T. Shattuck
- Department of Chemistry, Department of Physics, Department of Biomedical Engineering and the Photonics Center, Boston University, 590 Commonwealth Avenue, Boston, MA 02215
| | - Eric Pinnick
- Department of Chemistry, Department of Physics, Department of Biomedical Engineering and the Photonics Center, Boston University, 590 Commonwealth Avenue, Boston, MA 02215
| | - Jason J. Amsden
- Department of Chemistry, Department of Physics, Department of Biomedical Engineering and the Photonics Center, Boston University, 590 Commonwealth Avenue, Boston, MA 02215
| | - M. K. Hong
- Department of Chemistry, Department of Physics, Department of Biomedical Engineering and the Photonics Center, Boston University, 590 Commonwealth Avenue, Boston, MA 02215
| | - Feng Wang
- Department of Chemistry, Department of Physics, Department of Biomedical Engineering and the Photonics Center, Boston University, 590 Commonwealth Avenue, Boston, MA 02215
| | - Shyamsunder Erramilli
- Department of Chemistry, Department of Physics, Department of Biomedical Engineering and the Photonics Center, Boston University, 590 Commonwealth Avenue, Boston, MA 02215
| | - Lawrence D. Ziegler
- Department of Chemistry, Department of Physics, Department of Biomedical Engineering and the Photonics Center, Boston University, 590 Commonwealth Avenue, Boston, MA 02215
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36
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37
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Amicangelo JC, Collier JR, Dine CT, Saxton NL, Schleicher RM. Matrix isolation infrared observation of N3using a nitrogen microwave discharge plasma source. Mol Phys 2007. [DOI: 10.1080/00268970701259328] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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38
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Martirosyan GG, Azizyan AS, Kurtikyan TS, Ford PC. In Situ FT-IR and UV−vis Spectroscopy of the Low-Temperature NO Disproportionation Mediated by Solid State Manganese(II) Porphyrinates. Inorg Chem 2006; 45:4079-87. [PMID: 16676969 DOI: 10.1021/ic051824q] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The heterogeneous reaction between NO gas and sublimed layers of manganese(II) porphyrinato complexes Mn(Por) (Por = TPP (tetraphenylporphyrinato dianion), TMP (tetramesitylporphyrinato dianion), or TPP(d20) (perdeuterated tetraphenylporphyrinato dianion)) has been monitored by IR and optical spectroscopy over the temperature range of 77 K to room temperature. These manganese porphyrins promote NO disproportionation to NO2 species and N2O, and the reaction proceeds via several distinct stages. At 90 K, the principal species observed spectrally are the nitric oxide dimer, cis-ONNO, two manganese nitrosyls, the simple NO adduct Mn(Por)(NO), and another intermediate (1) that is apparently critical to the disproportionation mechanism. This key intermediate is formed prior to N2O evolution, and proposals regarding its likely structure are offered. When the system is warmed to 130 K, the disproportionation products, N2O and the O-coordinated nitrito complex Mn(Por)(NO)(ONO) (2), are formed. IR spectral changes show that, upon further warming to 200 K, 2 isomerizes into the N-bonded nitro linkage isomer Mn(Por)(NO)(NO2) (3). After it is warmed to room temperature, the latter species loses NO and converts to the known 5-coordinate nitrito complex Mn(Por)(ONO) (4).
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Affiliation(s)
- Garik G Martirosyan
- Armenian Research Institute of Applied Chemistry (ARIAC), 375005, Yerevan, Armenia
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39
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Yeom YH, Wen B, Sachtler WMH, Weitz E. NOx Reduction from Diesel Emissions over a Nontransition Metal Zeolite Catalyst: A Mechanistic Study Using FTIR Spectroscopy. J Phys Chem B 2004. [DOI: 10.1021/jp037504e] [Citation(s) in RCA: 110] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Young Hoon Yeom
- Institute for Environmental Catalysis and Department of Chemistry, Northwestern University, Evanston, Illinois 60208
| | - Bin Wen
- Institute for Environmental Catalysis and Department of Chemistry, Northwestern University, Evanston, Illinois 60208
| | - Wolfgang M. H. Sachtler
- Institute for Environmental Catalysis and Department of Chemistry, Northwestern University, Evanston, Illinois 60208
| | - Eric Weitz
- Institute for Environmental Catalysis and Department of Chemistry, Northwestern University, Evanston, Illinois 60208
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40
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Kaiser J, Röckmann T, Brenninkmeijer CAM. Contribution of mass-dependent fractionation to the oxygen isotope anomaly of atmospheric nitrous oxide. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003jd004088] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Jan Kaiser
- Department of Geosciences; Princeton University; Princeton New Jersey USA
| | - Thomas Röckmann
- Atmospheric Physics Division; Max Planck Institute for Nuclear Physics; Heidelberg Germany
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