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Yuan B, Tang S, Zhou S. Striking Size and Doping Effects of Ti−Si−O Clusters on Methane Conversion Reactions. Chemistry 2022; 28:e202201136. [DOI: 10.1002/chem.202201136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Bowei Yuan
- College of Chemical and Biological Engineering Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology Zhejiang University 310027 Hangzhou (P. R. China) Institute of Zhejiang University - Quzhou 78 Jiuhua Boulevard North 324000 Quzhou P. R. China
| | - Shi‐Ya Tang
- State Key Laboratory of Safety and Control for Chemicals SINOPEC Research Institute of Safety Engineering Co. Ltd. Qingdao 266000 (P. R. China
| | - Shaodong Zhou
- College of Chemical and Biological Engineering Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology Zhejiang University 310027 Hangzhou (P. R. China) Institute of Zhejiang University - Quzhou 78 Jiuhua Boulevard North 324000 Quzhou P. R. China
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Regioselective Bond-Forming and Hydrolysis Reactions of Doubly Charged Vanadium Oxide Anions in the Gas Phase. REACTIONS 2022. [DOI: 10.3390/reactions3020019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The gas-phase reactivity of vanadium-containing dianions, NaV3O92− and its hydrated form H2NaV3O102−, were probed towards sulphur dioxide at room temperature by ion-molecule reaction (IMR) experiments in the collision cell of an ion trap mass spectrometer. The sequential addition of two SO2 molecules to the NaV3O92− dianion leads to the breakage of the stable V3O9 backbone, resulting in a charge separation process with the formation of new V-O and S-O bonds. On the contrary, the H2NaV3O102− hydroxide species reacts with SO2, promoting regioselective hydrolysis and bond-forming processes, the latter similar to that observed for the NaV3O92− reactant anion. Kinetic analysis shows that these reactions are fast and efficient with rate constants of the 10−9 (±30) cm3 s−1 molecule−1 order of magnitude.
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3
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Intracluster Sulphur Dioxide Oxidation by Sodium Chlorite Anions: A Mass Spectrometric Study. Molecules 2021; 26:molecules26237114. [PMID: 34885696 PMCID: PMC8659277 DOI: 10.3390/molecules26237114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 11/21/2021] [Accepted: 11/22/2021] [Indexed: 11/17/2022] Open
Abstract
The reactivity of [NaL·ClO2]− cluster anions (L = ClOx−; x = 0–3) with sulphur dioxide has been investigated in the gas phase by ion–molecule reaction experiments (IMR) performed in an in-house modified Ion Trap mass spectrometer (IT-MS). The kinetic analysis revealed that SO2 is efficiently oxidised by oxygen-atom (OAT), oxygen-ion (OIT) and double oxygen transfer (DOT) reactions. The main difference from the previously investigated free reactive ClO2− is the occurrence of intracluster OIT and DOT processes, which are mediated by the different ligands of the chlorite anion. This gas-phase study highlights the importance of studying the intrinsic properties of simple reacting species, with the aim of elucidating the elementary steps of complex processes occurring in solution, such as the oxidation of sulphur dioxide.
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Salvitti C, Rosi M, Pepi F, Troiani A, de Petris G. Reactivity of transition metal dioxide anions MO2− (M = Co, Ni, Cu, Zn) with sulfur dioxide in the gas phase: An experimental and theoretical study. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138555] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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5
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The reactivity of methanimine radical cation (H2CNH+) and its isomer aminomethylene (HCNH2+) with methane. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138611] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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6
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Nguyen HT, Hang TD, Nguyen MT. Theoretical Study of Silicon Monoxide Reactions with Ammonia and Methane. J Phys Chem A 2017; 121:1032-1040. [PMID: 28084737 DOI: 10.1021/acs.jpca.6b11665] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
High-accuracy calculations were performed to study the mechanisms of the reactions between the diatomic silicon monoxide (SiO) with NH3 and CH4. These reactions are relevant to the SiO-related astrochemistry and atmospheric chemistry as well as the activation of the N-H and C-H bonds by the SiO triple bond. Energetic data used in the construction of potential energy surfaces describing the SiO + NH3/CH4 reactions were obtained at the coupled-cluster theory with extrapolation to the complete basis set limit (CCSD(T)/CBS) using DFT/B3LYP/aug-cc-pVTZ optimized geometries. Standard heats of formation of a series of small Si-molecules were predicted. Insertion of SiO into the N-H bond is exothermic with a small energy barrier of ∼8 kcal/mol with respect to the SiO + NH3 reactants, whereas the C-H bond activation by SiO involves a higher energy barrier of 45 kcal/mol. Eight product channels are opened in the SiO + NH3 reaction including dehydrations giving HNSi/HSiN and dehydrogenations. These reactions are endothermic by 16-119 kcal/mol (calculated at 298.15 K) with the CCSD(T)/CBS energy barriers of 21-128 kcal/mol. The most stable set of products, HNSi + H2O, was also the product of the reaction pathway having lowest energy barrier of 21 kcal/mol. Ten product channels of the SiO + CH4 reaction including decarbonylation, dehydration, dehydrogenation, and formation of Si + CH3OH are endothermic by 19-118 kcal/mol with the energy barriers in the range of 71-126 kcal/mol. The formation of H2CSiO + H2O has the lowest energy barrier of 71 kcal/mol, whereas the most stable set of products, SiH4 + CO, is formed via a higher energy barrier of 90 kcal/mol. Accordingly, while SiO can break the N-H bond of ammonia without the assistance of other molecules, it is not able to break the C-H bond of methane.
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Affiliation(s)
- Huyen Thi Nguyen
- Computational Chemistry Research Group, Ton Duc Thang University , Ho Chi Minh City, 778000 Vietnam.,Faculty of Applied Sciences, Ton Duc Thang University , Ho Chi Minh City, 778000 Vietnam
| | - Tran Dieu Hang
- Department of Chemistry, KU Leuven , Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Minh Tho Nguyen
- Computational Chemistry Research Group, Ton Duc Thang University , Ho Chi Minh City, 778000 Vietnam.,Faculty of Applied Sciences, Ton Duc Thang University , Ho Chi Minh City, 778000 Vietnam.,Department of Chemistry, KU Leuven , Celestijnenlaan 200F, B-3001 Leuven, Belgium
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7
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Sun X, Zhou S, Schlangen M, Schwarz H. Thermal Methane Activation by [Si 2 O 5 ] .+ and [Si 2 O 5 H 2 ] .+ : Reactivity Enhancement by Hydrogenation. Angew Chem Int Ed Engl 2016; 55:13345-13348. [PMID: 27650136 DOI: 10.1002/anie.201607864] [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: 08/12/2016] [Indexed: 11/09/2022]
Abstract
The thermal reactions of methane with the oxygen-rich cluster cations [Si2 O5 ]⋅+ and [Si2 O5 H2 ]⋅+ have been examined using Fourier transform-ion cyclotron resonance (FT-ICR) mass spectrometry in conjunction with state-of-the-art quantum chemical calculations. In contrast to the inertness of [Si2 O5 ].+ towards methane, the hydrogenated cluster [Si2 O5 H2 ].+ brings about hydrogen-atom transfer (HAT) from methane with an efficiency of 28 % relative to the collision rate. The mechanisms of this process have been investigated in detail and the reasons for the striking reactivity difference of the two cluster ions have been revealed.
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Affiliation(s)
- Xiaoyan Sun
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 135, 10623, Berlin, Germany
| | - Shaodong Zhou
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 135, 10623, Berlin, Germany
| | - Maria Schlangen
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 135, 10623, Berlin, Germany
| | - Helmut Schwarz
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 135, 10623, Berlin, Germany.
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Sun X, Zhou S, Schlangen M, Schwarz H. Thermische Methanaktivierung durch [Si2
O5
].+
und [Si2
O5
H2
].+
: Reaktivitätssteigerung durch Hydrierung. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201607864] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiaoyan Sun
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 135 10623 Berlin Deutschland
| | - Shaodong Zhou
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 135 10623 Berlin Deutschland
| | - Maria Schlangen
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 135 10623 Berlin Deutschland
| | - Helmut Schwarz
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 135 10623 Berlin Deutschland
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Sun X, Zhou S, Schlangen M, Schwarz H. Efficient Room-Temperature Methane Activation by the Closed-Shell, Metal-Free Cluster [OSiOH]+
: A Novel Mechanistic Variant. Chemistry 2016; 22:14257-63. [DOI: 10.1002/chem.201601981] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Indexed: 12/16/2022]
Affiliation(s)
- Xiaoyan Sun
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 135 10623 Berlin Germany
| | - Shaodong Zhou
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 135 10623 Berlin Germany
| | - Maria Schlangen
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 135 10623 Berlin Germany
| | - Helmut Schwarz
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 135 10623 Berlin Germany
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Schwarz H, González-Navarrete P, Li J, Schlangen M, Sun X, Weiske T, Zhou S. Unexpected Mechanistic Variants in the Thermal Gas-Phase Activation of Methane. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00372] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Helmut Schwarz
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany
| | | | - Jilai Li
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany
| | - Maria Schlangen
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany
| | - Xiaoyan Sun
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany
| | - Thomas Weiske
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany
| | - Shaodong Zhou
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany
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Rijs NJ, González-Navarrete P, Schlangen M, Schwarz H. Penetrating the Elusive Mechanism of Copper-Mediated Fluoromethylation in the Presence of Oxygen through the Gas-Phase Reactivity of Well-Defined [LCuO](+) Complexes with Fluoromethanes (CH(4-n)Fn, n = 1-3). J Am Chem Soc 2016; 138:3125-35. [PMID: 26859159 DOI: 10.1021/jacs.5b12972] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Traveling wave ion mobility spectrometry (TWIMS) isomer separation was exploited to react the particularly well-defined ionic species [LCuO](+) (L = 1,10-phenanthroline) with the neutral fluoromethane substrates CH(4-n)Fn (n = 1-3) in the gas phase. Experimentally, the monofluoromethane substrate (n = 1) undergoes both hydrogen-atom transfer, forming the copper hydroxide complex [LCuOH](•+) and concomitantly a CH2F(•) radical, and oxygen-atom transfer, yielding the observable ionic product [LCu](+) plus the neutral oxidized substrate [C,H3,O,F]. DFT calculations reveal that the mechanism for both product channels relies on the initial C-H bond activation of the substrate. Compared to nonfluorinated methane, the addition of fluorine to the substrate assists the reactivity through a lowering of the C-H bond energy and reaction preorganization (through noncovalent interaction in the encounter complex). A two-state reactivity scenario is mandatory for the oxidation, which competitively results in the unusual fluoromethanol product, CH2FOH, or the decomposed products, CH2O and HF, with the latter channel being kinetically disfavored. Difluoromethane (n = 2) is predicted to undergo the analogous reactions at room temperature, although the reactions are less favored than those of monofluoromethane. The reaction of trifluoromethane (n = 3, fluoroform) through C-H activation is kinetically hindered under ambient conditions but might be expected to occur in the condensed phase upon heating or with further lowering of reaction barriers through templation with counterions, such as potassium. Overall, formation of CH(3-n)Fn(•) and CH(3-n)FnOH occurs under relatively gentle energetic conditions, which sheds light on their potential as reactive intermediates in fluoromethylation reactions mediated by copper in the presence of oxygen.
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Affiliation(s)
- Nicole J Rijs
- Institute of Nanotechnology, Karlsruhe Institute of Technology , Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | | | - Maria Schlangen
- Institut für Chemie, Technische Universität Berlin , Straße des 17. Juni 115, 10623 Berlin, Germany
| | - Helmut Schwarz
- Institut für Chemie, Technische Universität Berlin , Straße des 17. Juni 115, 10623 Berlin, Germany
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Ma G, Li ZH. Methane activation by metal-free Lewis acid centers only – a computational design and mechanism study. Phys Chem Chem Phys 2016; 18:11539-49. [DOI: 10.1039/c6cp00505e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The design strategy and mechanism of methane activation by metal-free Lewis acidic silylboranes is investigated.
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Affiliation(s)
- Gongli Ma
- Collaborative Innovation Center of Chemistry for Energy Material
- Shanghai Key Laboratory of Molecular Catalysis & Innovative Materials
- Department of Chemistry
- Fudan University
- Shanghai 200433
| | - Zhen Hua Li
- Collaborative Innovation Center of Chemistry for Energy Material
- Shanghai Key Laboratory of Molecular Catalysis & Innovative Materials
- Department of Chemistry
- Fudan University
- Shanghai 200433
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Wu G, Stewart H, Liu Z, Wang Y, Stace AJ. Activation of Methane by the Pyridine Radical Cation and its Substituted Forms in the Gas Phase. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2015; 26:1382-1387. [PMID: 25990924 DOI: 10.1007/s13361-015-1165-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 03/29/2015] [Accepted: 04/10/2015] [Indexed: 06/04/2023]
Abstract
We present an experimental study of methane activation by pyridine cation and its substituents in the gas phase. Mass spectrometric experiments in an ion trap demonstrate that pyridine cation and some of its substituent cations are able to react with methane. The deuterated methane experiment has confirmed that the hydrogen atom in the ionic product of reaction does come from methane. The collected information about kinetic isotope effects has been used to distinguish the nature of the bond activation as a hydrogen abstraction. Furthermore, experimental results demonstrated that the substituent groups on the pyridine ring can crucially influence their reactivity in methane bond activation processes. Density functional calculation (DFT) was employed to study the electronic structures of the complex and reaction mechanism of CH4+C5H5N(+). The calculations confirmed the hypothesis from the experimental observation, namely, the reaction is rapid with no energy barrier.
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Affiliation(s)
- Guohua Wu
- Sericultural Research Institute, Jiangsu University of Science and Technology, Zhenjiang, 212018, China,
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15
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Schwarz H. How and Why Do Cluster Size, Charge State, and Ligands Affect the Course of Metal-Mediated Gas-Phase Activation of Methane? Isr J Chem 2014. [DOI: 10.1002/ijch.201300134] [Citation(s) in RCA: 168] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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16
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Troiani A, Rosi M, Salvitti C, de Petris G. The Oxidation of Sulfur Dioxide by Single and Double Oxygen Transfer Paths. Chemphyschem 2014; 15:2723-31. [DOI: 10.1002/cphc.201402306] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Indexed: 11/12/2022]
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Melko JJ, Ard SG, Johnson RS, Shuman NS, Guo H, Viggiano AA. Temperature-Dependent Kinetics of Charge Transfer, Hydrogen-Atom Transfer, and Hydrogen-Atom Expulsion in the Reaction of CO+ with CH4 and CD4. J Phys Chem A 2014; 118:8141-6. [DOI: 10.1021/jp500591h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Joshua J. Melko
- Air Force Research
Laboratory, Space Vehicles Directorate, Kirtland AFB, New Mexico 87117-5776, United States
| | - Shaun G. Ard
- Air Force Research
Laboratory, Space Vehicles Directorate, Kirtland AFB, New Mexico 87117-5776, United States
| | - Ryan S. Johnson
- Department
of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Nicholas S. Shuman
- Air Force Research
Laboratory, Space Vehicles Directorate, Kirtland AFB, New Mexico 87117-5776, United States
| | - Hua Guo
- Department
of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Albert A. Viggiano
- Air Force Research
Laboratory, Space Vehicles Directorate, Kirtland AFB, New Mexico 87117-5776, United States
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Wang ZC, Yin S, Bernstein ER. Generation and reactivity of putative support systems, Ce-Al neutral binary oxide nanoclusters: CO oxidation and C–H bond activation. J Chem Phys 2013; 139:194313. [DOI: 10.1063/1.4830406] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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19
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Wang ZC, Liu JW, Schlangen M, Weiske T, Schröder D, Sauer J, Schwarz H. Thermal Methane Activation by a Binary V-Nb Transition-Metal Oxide Cluster Cation: A Further Example for the Crucial Role of Oxygen-Centered Radicals. Chemistry 2013; 19:11496-501. [DOI: 10.1002/chem.201302133] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Indexed: 11/10/2022]
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20
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de Petris G, Troiani A, Rosi M, Angelini G, Ursini O. Selective Activation of CCl and CF Bonds by SO.+Radical Cations: An Experimental and Computational Study. Chempluschem 2013; 78:1065-1072. [DOI: 10.1002/cplu.201300162] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Indexed: 11/06/2022]
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Single and Double NH Bond Activation of Ammonia by [Al2O3].+: Room Temperature Formation of the Aminyl Radical and Nitrene. Angew Chem Int Ed Engl 2013; 52:9513-7. [DOI: 10.1002/anie.201302506] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Indexed: 11/07/2022]
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22
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Kretschmer R, Wang ZC, Schlangen M, Schwarz H. Einfache und doppelte N-H-Aktivierung in NH3durch [Al2O3].+: Erzeugung des Aminylradikals und von Nitren bei Raumtemperatur. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302506] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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