1
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Theoretical investigation for the reaction of CO oxidation by N2O on Fe6M (M = Fe, Co, Ni, Mn) clusters. REACTION KINETICS MECHANISMS AND CATALYSIS 2022. [DOI: 10.1007/s11144-022-02308-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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2
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Green AE, Brown RH, Meizyte G, Mackenzie SR. Spectroscopy and Infrared Photofragmentation Dynamics of Mixed Ligand Ion-Molecule Complexes: Au(CO) x(N 2O) y. J Phys Chem A 2021; 125:7266-7277. [PMID: 34433267 DOI: 10.1021/acs.jpca.1c05800] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report a combined experimental and computational study of the structure and fragmentation dynamics of mixed ligand gas-phase ion-molecule complexes. Specifically, we have studied the infrared spectroscopy and vibrationally induced photofragmentation dynamics of mass-selected Au(CO)x(N2O)y+ complexes. The structures can be understood on the basis of local CO and N2O chromophores in different solvation shells with CO found preferentially in the core. Rich fragmentation dynamics are observed as a function of complex composition and the vibrational mode excited. The dynamics are characterized in terms of branching ratios for different ligand loss channels in light of calculated internal energy distributions. Intramolecular vibrational redistribution appears to be rapid, and dissociation is observed into all energetically accessible channels with little or no evidence for preferential breaking of the weakest intermolecular interactions.
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Affiliation(s)
- Alice E Green
- Department of Chemistry, Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, United Kingdom OX1 3QZ
| | - Rachael H Brown
- Department of Chemistry, Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, United Kingdom OX1 3QZ
| | - Gabriele Meizyte
- Department of Chemistry, Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, United Kingdom OX1 3QZ
| | - Stuart R Mackenzie
- Department of Chemistry, Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, United Kingdom OX1 3QZ
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3
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McMahon AJ, Jarrold CC. Using anion photoelectron spectroscopy of cluster models to gain insights into mechanisms of catalyst-mediated H 2 production from water. Phys Chem Chem Phys 2020; 22:27936-27948. [PMID: 33201956 DOI: 10.1039/d0cp05055e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Metal oxide cluster models of catalyst materials offer a powerful platform for probing the molecular-scale features and interactions that govern catalysis. This perspective gives an overview of studies implementing the combination of anion photoelectron (PE) spectroscopy and density functional theory calculations toward exploring cluster models of metal oxides and metal-oxide supported Pt that catalytically drive the hydrogen evolution reaction (HER) or the water-gas shift reaction. The utility in the combination of these experimental and computational techniques lies in our ability to unambiguously determine electronic and molecular structures, which can then connect to results of reactivity studies. In particular, we focus on the activity of oxygen vacancies modeled by suboxide clusters, the critical mechanistic step of forming proximal metal hydride and hydroxide groups as a prerequisite for H2 production, and the structural features that lead to trapped dihydroxide groups. The pronounced asymmetric oxidation found in heterometallic group 6 oxides and near-neighbor group 5/group 6 results in higher activity toward water, while group 7/group 6 oxides form very specific stoichiometries that suggest facile regeneration. Studies on the trans-periodic combination of cerium oxide and platinum as a model for ceria supported Pt atoms and nanoparticles reveal striking negative charge accumulation by Pt, which, combined with the ionic conductivity of ceria, suggests a mechanism for the exceptionally high activity of this system towards the water-gas shift reaction.
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Affiliation(s)
- Abbey J McMahon
- Indiana University, Department of Chemistry, 800 E. Kirkwood Avenue, Bloomington, IN 47405, USA.
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4
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Mason JL, Gupta AK, McMahon AJ, Folluo CN, Raghavachari K, Jarrold CC. The striking influence of oxophilicity differences in heterometallic Mo–Mn oxide cluster reactions with water. J Chem Phys 2020; 152:054301. [DOI: 10.1063/1.5142398] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Affiliation(s)
- Jarrett L. Mason
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, USA
| | - Ankur K. Gupta
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, USA
| | - Abbey J. McMahon
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, USA
| | - Carley N. Folluo
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, USA
| | - Krishnan Raghavachari
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, USA
| | - Caroline Chick Jarrold
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, USA
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5
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Structure, stability and reactivity of neutral bimetallic manganese oxide clusters with CO and NO—a DFT study. Struct Chem 2019. [DOI: 10.1007/s11224-019-01319-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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6
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Kaur N, Gupta S, Goel N. Understanding structure-activity relation in V xO y clusters of varied stoichiometry and sizes through conceptual density functional approach. J Mol Model 2019; 25:319. [PMID: 31598882 DOI: 10.1007/s00894-019-4168-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 08/15/2019] [Indexed: 11/27/2022]
Abstract
Computations have been performed on VxOy clusters (with x = 1-8, y = 1-21) to explore their structure, stability, and reactivity based on local and global reactivity descriptors defined within the formalism of density functional theory (DFT). The vertical and adiabatic ionization energies and electron affinities are in accordance with Franck-Condon principle and suggest that the VxOy clusters are more likely to be electron acceptors than donors. The structure and reactivity of VxOy clusters delicately depend on their oxygen content and environment. Distinct active sites have been identified for each cluster species on the basis of coordination, symmetry, and charge distribution. The propensity of all the reactive sites towards an approaching electrophile and/or nucleophile has been studied using local reactivity descriptor. In oxygen-poor clusters, the vanadium atoms are more prone to nucleophilic attack. With an increase in oxygen concentration, the coordination number of vanadium increases and reaches four-fold, the site for nucleophilic attack shifts to terminal oxygens. We conclude that of all the stoichiometries, the stable VxOy clusters have the (VO3)a(V2O5)b formula unit. The localization of positive charge density in cubic cage structure of V8O20 successfully traps halide ions (F-, Cl-, and Br-). In view of increasing use of metal oxide clusters in heterogeneous catalysis, the understanding of structure-activity relationship in vanadium oxides' clusters provided in the current study is highly desirable.
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Affiliation(s)
- Navjot Kaur
- Theoretical & Computational Chemistry Group, Department of Chemistry & Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh, 160014, India
| | - Shuchi Gupta
- University Institute of Engineering and Technology, Panjab University, Chandigarh, 160014, India.
| | - Neetu Goel
- Theoretical & Computational Chemistry Group, Department of Chemistry & Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh, 160014, India.
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7
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Sun X, Zhou S, Yue L, Guo C, Schlangen M, Schwarz H. Über die besondere Rolle des Stickstoffliganden in den durch [NbN] +
katalysierten Redoxreaktionen von N 2
O/CO in der Gasphase. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology; College of Chemical and Biological Engineering; Zhejiang University; 310027 Hangzhou P. R. China
| | - Lei Yue
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 135 10623 Berlin Germany
| | - Cheng Guo
- 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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8
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Sun X, Zhou S, Yue L, Guo C, Schlangen M, Schwarz H. On the Remarkable Role of the Nitrogen Ligand in the Gas-Phase Redox Reaction of the N2
O/CO Couple Catalyzed by [NbN]+. Angew Chem Int Ed Engl 2019; 58:3635-3639. [DOI: 10.1002/anie.201814460] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Indexed: 11/12/2022]
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
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology; College of Chemical and Biological Engineering; Zhejiang University; 310027 Hangzhou P. R. China
| | - Lei Yue
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 135 10623 Berlin Germany
| | - Cheng Guo
- 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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9
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Wang LN, Li XN, Jiang LX, Yang B, Liu QY, Xu HG, Zheng WJ, He SG. Catalytic CO Oxidation by O2
Mediated by Noble-Metal-Free Cluster Anions Cu2
VO3-
5
−. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201712129] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Li-Na Wang
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Xiao-Na Li
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Li-Xue Jiang
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Bin Yang
- State Key Laboratory of Molecular Reaction Dynamics; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Qing-Yu Liu
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Hong-Guang Xu
- State Key Laboratory of Molecular Reaction Dynamics; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Wei-Jun Zheng
- State Key Laboratory of Molecular Reaction Dynamics; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Sheng-Gui He
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
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10
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Wang LN, Li XN, Jiang LX, Yang B, Liu QY, Xu HG, Zheng WJ, He SG. Catalytic CO Oxidation by O2
Mediated by Noble-Metal-Free Cluster Anions Cu2
VO3-
5
−. Angew Chem Int Ed Engl 2018; 57:3349-3353. [DOI: 10.1002/anie.201712129] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Revised: 01/25/2018] [Indexed: 11/12/2022]
Affiliation(s)
- Li-Na Wang
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Xiao-Na Li
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Li-Xue Jiang
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Bin Yang
- State Key Laboratory of Molecular Reaction Dynamics; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Qing-Yu Liu
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Hong-Guang Xu
- State Key Laboratory of Molecular Reaction Dynamics; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Wei-Jun Zheng
- State Key Laboratory of Molecular Reaction Dynamics; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Sheng-Gui He
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
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11
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Li XN, Zou XP, He SG. Metal-mediated catalysis in the gas phase: A review. CHINESE JOURNAL OF CATALYSIS 2017. [DOI: 10.1016/s1872-2067(17)62782-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Sun X, Zhou S, Yue L, Schlangen M, Schwarz H. Metal‐Free, Room‐Temperature Oxygen‐Atom Transfer in the N
2
O/CO Redox Couple as Catalyzed by [Si
2
O
x
]
.+
(
x
=2
–
5). Angew Chem Int Ed Engl 2017. [DOI: 10.1002/anie.201703453] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Xiaoyan Sun
- Institut für ChemieTechnische Universität Berlin Strasse des 17. Juni 135 10623 Berlin Germany
| | - Shaodong Zhou
- Institut für ChemieTechnische Universität Berlin Strasse des 17. Juni 135 10623 Berlin Germany
| | - Lei Yue
- Institut für ChemieTechnische Universität Berlin Strasse des 17. Juni 135 10623 Berlin Germany
| | - Maria Schlangen
- Institut für ChemieTechnische Universität Berlin Strasse des 17. Juni 135 10623 Berlin Germany
| | - Helmut Schwarz
- Institut für ChemieTechnische Universität Berlin Strasse des 17. Juni 135 10623 Berlin Germany
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13
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Sun X, Zhou S, Yue L, Schlangen M, Schwarz H. Metallfreier, durch [Si
2
O
x
]
.+
(
x
=2
–
5) katalysierter Sauerstofftransfer im N
2
O/CO‐Redoxpaar bei Raumtemperatur. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201703453] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiaoyan Sun
- Institut für ChemieTechnische Universität Berlin Straße des 17. Juni 135 10623 Berlin Deutschland
| | - Shaodong Zhou
- Institut für ChemieTechnische Universität Berlin Straße des 17. Juni 135 10623 Berlin Deutschland
| | - Lei Yue
- Institut für ChemieTechnische Universität Berlin Straße des 17. Juni 135 10623 Berlin Deutschland
| | - Maria Schlangen
- Institut für ChemieTechnische Universität Berlin Straße des 17. Juni 135 10623 Berlin Deutschland
| | - Helmut Schwarz
- Institut für ChemieTechnische Universität Berlin Straße des 17. Juni 135 10623 Berlin Deutschland
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14
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Affiliation(s)
- Zhixun Luo
- State
Key Laboratory for Structural Chemistry of Unstable and Stable Species,
Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - A. W. Castleman
- Departments
of Chemistry and Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Shiv N. Khanna
- Department
of Physics, Virginia Commonwealth University, Richmond, Virginia 23284, United States
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15
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Jiang LX, Li XN, Li HF, Zhou ZX, He SG. Generation of Hydroxyl Radicals in the Reaction of Dihydrogen with AuNbO 4+ Cluster Cations. Chem Asian J 2016; 11:2730-2734. [PMID: 27017581 DOI: 10.1002/asia.201600144] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 03/09/2016] [Indexed: 11/05/2022]
Abstract
A molecular-level insight into the nature of reactive oxygen species involved in dihydrogen (H2 ) dissociation is of great importance to understand gold catalysis. In this study, laser ablation generated and mass-selected AuNbO4+ oxide cluster cations could dissociate H2 in an ion-trap reactor. The reaction has been characterized by time-of-flight mass spectrometric experiments and density functional calculations. The lowest energy isomer of AuNbO4+ contains two lattice oxygen (O2- ) and one superoxide (O2.- ) species. The gold atom anchors the H2 molecule in the first step and then delivers one hydrogen atom to the O2- ion in H2 dissociation. At the same time, O2.- is reduced into a peroxide unit that can accept the second hydrogen atom of H2 with the generation of a hydroxyl radical as the main product. In this study, the important roles of the O2.- unit in the dissociation of H2 have been identified.
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Affiliation(s)
- Li-Xue Jiang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of, Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P.R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P.R. China
| | - Xiao-Na Li
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of, Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P.R. China.
| | - Hai-Fang Li
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of, Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P.R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P.R. China
| | - Zhen-Xun Zhou
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, P.R. China
| | - Sheng-Gui He
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of, Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P.R. China.
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16
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Li XN, Li ZY, Li HF, He SG. Multiple CO Oxidation Promoted by Au2
Dimers in Au2
TiO4
−
Cluster Anions. Chemistry 2016; 22:9024-9. [DOI: 10.1002/chem.201600451] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Xiao-Na Li
- Beijing National Laboratory for Molecular Science; State Key Laboratory for Structural Chemistry of Unstable and Stable Species; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Zi-Yu Li
- Beijing National Laboratory for Molecular Science; State Key Laboratory for Structural Chemistry of Unstable and Stable Species; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Hai-Fang Li
- Beijing National Laboratory for Molecular Science; State Key Laboratory for Structural Chemistry of Unstable and Stable Species; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
- University of Chinese Academy of Sciences; Beijing 100049 P. R. China
| | - Sheng-Gui He
- Beijing National Laboratory for Molecular Science; State Key Laboratory for Structural Chemistry of Unstable and Stable Species; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
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17
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Pietrzyk P, Góra-Marek K. Paramagnetic dioxovanadium(IV) molecules inside the channels of zeolite BEA--EPR screening of VO2 reactivity toward small gas-phase molecules. Phys Chem Chem Phys 2016; 18:9490-6. [PMID: 26983648 DOI: 10.1039/c6cp01046f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Interaction of small gas-phase molecules (NO, N2O, O2, CO) with VO2 radicals inside the channels of a dealuminated SiBEA zeolite was investigated by means of electron paramagnetic resonance (EPR), infrared (IR), and mass (QMS) spectroscopies to provide direct insights into the chemistry of a unique paramagnetic state of vanadium - VO2 molecules. A facile way of forming VO2 inside the channels of SiBEA via thermal reduction of VO2(+) precursor cations was shown. Dioxovanadium(IV) was identified based on its unusual EPR signal which, as compared with the typical monooxovanadium(IV) (VO(2+) cation), is featured by rhombic symmetry and a positive Aiso value leading to a hyperfine splitting as large as 32 mT. VO2 molecules exhibit reducing properties transforming N2O and O2 into vanadium intrachannel cage adducts comprising of reactive oxygen species (O(-) and O2(-), respectively). Interaction with CO led to its oxidation to CO2, while paramagnetic NO acted as a scavenger for VO2 radicals producing diamagnetic adducts. The observed reactivity was rationalized in terms of spin-pairing, electron transfer, and oxygen transfer processes. As a result new chemical pathways of vanadium reactivity were demonstrated which were not observed so far either in the homogeneous molecular systems or supported vanadium materials.
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Affiliation(s)
- Piotr Pietrzyk
- Faculty of Chemistry, Jagiellonian University, ul. R. Ingardena 3, 30-060 Krakow, Poland.
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18
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Ray M, Saha A, Raghavachari K. Hydrogen evolution from water using Mo–oxide clusters in the gas phase: DFT modeling of a complete catalytic cycle using a Mo2O4−/Mo2O5− cluster couple. Phys Chem Chem Phys 2016; 18:25687-25692. [DOI: 10.1039/c6cp04259g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrogen evolution from water using sacrificial reagents and Mo–oxide cluster anions has been explored. The internal energy preservation within the clusters plays a key role in the catalytic cycle.
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Affiliation(s)
- Manisha Ray
- Department of Chemistry
- Indiana University
- Bloomington
- USA
| | - Arjun Saha
- Department of Chemistry
- Indiana University
- Bloomington
- USA
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19
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Wang L, Li Z, Liu Q, Meng J, He S, Ma T. CO Oxidation Promoted by the Gold Dimer in Au
2
VO
3
−
and Au
2
VO
4
−
Clusters. Angew Chem Int Ed Engl 2015; 54:11720-4. [DOI: 10.1002/anie.201505476] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 07/14/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Li‐Na Wang
- Beijing National Laboratory for Molecular Science, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190 (China)
- School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou 510640 (China)
| | - Zi‐Yu Li
- Beijing National Laboratory for Molecular Science, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190 (China)
| | - Qing‐Yu Liu
- Beijing National Laboratory for Molecular Science, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190 (China)
| | - Jing‐Heng Meng
- Beijing National Laboratory for Molecular Science, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190 (China)
| | - Sheng‐Gui He
- Beijing National Laboratory for Molecular Science, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190 (China)
| | - Tong‐Mei Ma
- School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou 510640 (China)
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20
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Wang LN, Li ZY, Liu QY, Meng JH, He SG, Ma TM. CO Oxidation Promoted by the Gold Dimer in Au2VO3−and Au2VO4−Clusters. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505476] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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21
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Abstract
Nitrous oxide (N2O, ‘laughing gas’) is a very inert molecule. Still, it can be used as a reagent in synthetic organic and inorganic chemistry, serving as O-atom donor, as N-atom donor, or as a oxidant in metal-catalyzed reactions.
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Affiliation(s)
- Kay Severin
- Institut des Sciences et Ingénierie Chimiques
- Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
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Li ZY, Yuan Z, Li XN, Zhao YX, He SG. CO Oxidation Catalyzed by Single Gold Atoms Supported on Aluminum Oxide Clusters. J Am Chem Soc 2014; 136:14307-13. [DOI: 10.1021/ja508547z] [Citation(s) in RCA: 183] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Zi-Yu Li
- Beijing
National Laboratory for Molecular Sciences, State Key Laboratory for
Structural Chemistry of Unstable and Stable Species, Institute of
Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Zhen Yuan
- Beijing
National Laboratory for Molecular Sciences, State Key Laboratory for
Structural Chemistry of Unstable and Stable Species, Institute of
Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Xiao-Na Li
- Beijing
National Laboratory for Molecular Sciences, State Key Laboratory for
Structural Chemistry of Unstable and Stable Species, Institute of
Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Yan-Xia Zhao
- Beijing
National Laboratory for Molecular Sciences, State Key Laboratory for
Structural Chemistry of Unstable and Stable Species, Institute of
Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Sheng-Gui He
- Beijing
National Laboratory for Molecular Sciences, State Key Laboratory for
Structural Chemistry of Unstable and Stable Species, Institute of
Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
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Kim JB, Weichman ML, Neumark DM. Vibronic structure of VO2 probed by slow photoelectron velocity-map imaging spectroscopy. J Chem Phys 2014; 140:034307. [DOI: 10.1063/1.4861667] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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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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