101
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Geng L, Cui C, Jia Y, Wu H, Zhang H, Yin B, Sun ZD, Luo Z. Reactivity of Cobalt Clusters Co n±/0 with Ammonia: Co 3+ Cluster Catalysis for NH 3 Dehydrogenation. J Phys Chem A 2020; 124:5879-5886. [PMID: 32573228 DOI: 10.1021/acs.jpca.0c03720] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A customized reflection time-of-flight (Re-TOF) mass spectrometer combined with a 177 nm deep-ultraviolet laser has enabled us to observe well-resolved cobalt clusters Con±/0 and perform a comprehensive study of their reactivity with ammonia (NH3). The anions Con- are found to be inert, the neutrals allow the adsorption of multiple NH3 molecules, while the cationic Con+ clusters readily react with NH3 giving rise to dehydrogenation. However, incidental dehydrogenation of NH3 on Con+ is only observed for n ≥ 3. The dramatic charge- and size-dependent reactivities of Con±/0 clusters with NH3 are studied by the density functional theory (DFT)-calculation results of energetics, density of states, orbital interactions, and reaction dynamics. We illustrate the dehydrogenation from two NH3 molecules, where a significantly reduced transition-state energy barrier is found pertaining to the dimolecular co-catalysis effect. The reactivity of Co3+ with NH3 is illustrated showing effective catalysis for N-H dissociation to produce hydrogen applicable for designing ammonia fuel cells.
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Affiliation(s)
- Lijun Geng
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China.,School of Physics, Shandong University, Jinan 250100, P. R. China
| | - Chaonan Cui
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yuhan Jia
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Haiming Wu
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Hanyu Zhang
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Baoqi Yin
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Zhen-Dong Sun
- School of Physics, Shandong University, Jinan 250100, P. R. China.,School of Physics and Electrical Engineering, Kashi University, Kashgar 844006, P. R. China
| | - Zhixun Luo
- Beijing National Laboratory for Molecular Sciences (BNLMS), 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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102
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Li J, Geng C, Weiske T, Schwarz H. On the Crucial Role of Isolated Electronic States in the Thermal Reaction of ReC + with Dihydrogen. Angew Chem Int Ed Engl 2020; 59:9370-9376. [PMID: 32181571 PMCID: PMC7317438 DOI: 10.1002/anie.202001599] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Indexed: 01/19/2023]
Abstract
Presented here is that isolated, long‐lived electronic states of ReC+ serve as the root cause for distinctly different reactivities of this diatomic ion in the thermal activation of dihydrogen. Detailed high‐level quantum chemical calculations support the experimental findings obtained in the highly diluted gas phase using FT‐ICR mass spectrometry. The origin for the existence of these long‐lived excited electronic states and the resulting implications for the varying mechanisms of dihydrogen splitting are addressed.
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Affiliation(s)
- Jilai Li
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 115, 10623, Berlin, Germany.,Institute of Theoretical Chemistry, Jilin University, 130023, Changchun, China
| | - Caiyun Geng
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 115, 10623, Berlin, Germany
| | - Thomas Weiske
- 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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103
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Li J, Geng C, Weiske T, Schwarz H. On the Crucial Role of Isolated Electronic States in the Thermal Reaction of ReC
+
with Dihydrogen. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001599] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jilai Li
- Institut für ChemieTechnische Universität Berlin Straße des 17. Juni 115 10623 Berlin Germany
- Institute of Theoretical ChemistryJilin University 130023 Changchun China
| | - Caiyun Geng
- Institut für ChemieTechnische Universität Berlin Straße des 17. Juni 115 10623 Berlin Germany
| | - Thomas Weiske
- Institut für ChemieTechnische Universität Berlin Straße des 17. Juni 115 10623 Berlin Germany
| | - Helmut Schwarz
- Institut für ChemieTechnische Universität Berlin Straße des 17. Juni 115 10623 Berlin Germany
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104
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Yamaguchi M, Zhang Y, Kudoh S, Koyama K, Lushchikova OV, Bakker JM, Mafuné F. Oxophilicity as a Descriptor for NO Cleavage Efficiency over Group IX Metal Clusters. J Phys Chem Lett 2020; 11:4408-4412. [PMID: 32396005 DOI: 10.1021/acs.jpclett.0c01133] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Iridium and rhodium are group IX elements that can both catalytically reduce NO. To understand the difference in their reactivity toward NO, the adsorption forms of NO onto clusters of Ir and Rh are compared using vibrational spectra, recorded via infrared multiple-photon dissociation spectroscopy. The spectra give evidence for the existence of at least two specific adsorption forms. The main Ir6+NO isomer is one in which NO is dissociated, whereas one other is a local minimum structure in the reaction pathway leading to dissociative adsorption. In contrast to adsorption onto Rh6+, where less than 10% of the isomeric population was found in the global minimum associated with dissociative adsorption, a substantial fraction (about 50%) of NO dissociates on Ir6+. This higher efficiency is attributed to a considerably reduced activation barrier for dissociation on Ir6+. The key chemical property identified for dissociation efficiency is the cluster's affinity to atomic oxygen.
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Affiliation(s)
- Masato Yamaguchi
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, Komaba, Meguro-ku, Tokyo 153-8902, Japan
| | - Yufei Zhang
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, Komaba, Meguro-ku, Tokyo 153-8902, Japan
| | - Satoshi Kudoh
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, Komaba, Meguro-ku, Tokyo 153-8902, Japan
| | - Kohei Koyama
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, Komaba, Meguro-ku, Tokyo 153-8902, Japan
| | - Olga V Lushchikova
- Radboud University, Institute for Molecules and Materials, FELIX Laboratory, 6525 ED Nijmegen, Netherlands
| | - Joost M Bakker
- Radboud University, Institute for Molecules and Materials, FELIX Laboratory, 6525 ED Nijmegen, Netherlands
| | - Fumitaka Mafuné
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, Komaba, Meguro-ku, Tokyo 153-8902, Japan
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105
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Green AE, Schaller S, Meizyte G, Rhodes BJ, Kealy SP, Gentleman AS, Schöllkopf W, Fielicke A, Mackenzie SR. Infrared Study of OCS Binding and Size-Selective Reactivity with Gold Clusters, Aun+ (n = 1–10). J Phys Chem A 2020; 124:5389-5401. [DOI: 10.1021/acs.jpca.0c03813] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alice E. Green
- Physical and Theoretical Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, OX1 3QZ Oxford, United Kingdom
| | - Sascha Schaller
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Gabriele Meizyte
- Physical and Theoretical Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, OX1 3QZ Oxford, United Kingdom
| | - Benjamin J. Rhodes
- Physical and Theoretical Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, OX1 3QZ Oxford, United Kingdom
| | - Sean P. Kealy
- Physical and Theoretical Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, OX1 3QZ Oxford, United Kingdom
| | - Alexander S. Gentleman
- Physical and Theoretical Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, OX1 3QZ Oxford, United Kingdom
| | - Wieland Schöllkopf
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - André Fielicke
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
- Institut für Optik und Atomare Physik, Technische Universität Berlin, Hardenbergstraße 36, 10623 Berlin, Germany
| | - Stuart R. Mackenzie
- Physical and Theoretical Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, OX1 3QZ Oxford, United Kingdom
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106
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Wang MM, Zhao YX, Ding XL, Li W, He SG. Methane activation by heteronuclear diatomic AuRh + cation: comparison with homonuclear Au 2+ and Rh 2. Phys Chem Chem Phys 2020; 22:6231-6238. [PMID: 32129335 DOI: 10.1039/c9cp05699h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The ability to activate methane differs appreciably for different transition metals, and it is attractive to find the most suitable metal for the direct conversion of methane to value-added chemicals. Herein, we performed a comparative study on the reactions of CH4 with Au2+, AuRh+ and Rh2+ cations by mass-spectrometry based experiments and DFT-based theoretical analysis. Different reactivity has been found for these cations: Au2+ has the lowest reactivity, and it can activate methane but only produce H-Au2-CH3+ without H2 release; Rh2+ has the highest reactivity, and it can produce both carbene-type Rh2-CH2+ and carbyne-type H-Rh2-CH+ with H2 release; AuRh+ also has high reactivity to produce only AuRh-CH2+ with H2, avoiding the excessive dehydrogenation of CH4. Our theoretical results demonstrate that Rh is responsible for the high reactivity, while Au leads to selectivity, which may be caused by the unique intrinsic bonding properties of the metals.
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Affiliation(s)
- Meng-Meng Wang
- School of Mathematics and Physics, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing 102206, P. R. China.
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107
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Li G, Wang C, Li Q, Zheng H, Wang T, Yu Y, Su M, Yang D, Shi L, Yang J, He Z, Xie H, Fan H, Zhang W, Dai D, Wu G, Yang X, Jiang L. Infrared + vacuum ultraviolet two-color ionization spectroscopy of neutral metal complexes based on a tunable vacuum ultraviolet free-electron laser. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2020; 91:034103. [PMID: 32259935 DOI: 10.1063/1.5141897] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 02/21/2020] [Indexed: 06/11/2023]
Abstract
This paper describes an experimental technique for studying neutral metal complexes using infrared + vacuum ultraviolet (IR+VUV) two-color ionization spectroscopy based on a tunable VUV free-electron laser (VUV-FEL). The preliminary IR spectroscopy results of mass-selected nickel tetracarbonyl are reported in this work. The results demonstrate that the tunable VUV-FEL light allows the selective ionization of a given neutral cluster free of confinement along with the recording of well-resolved IR spectra. As the ionization energies of many neutral clusters are accessible by a broadly tunable VUV-FEL (50-150 nm) and near-threshold ionization can be readily achieved, the proposed experimental method offers unique possibilities for the size-specific study of a wide variety of confinement-free neutral clusters.
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Affiliation(s)
- Gang Li
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Chong Wang
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Qinming Li
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Huijun Zheng
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Tiantong Wang
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Yong Yu
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Mingzhi Su
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Dong Yang
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Lei Shi
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Jiayue Yang
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Zhigang He
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Hua Xie
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Hongjun Fan
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Weiqing Zhang
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Dongxu Dai
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Guorong Wu
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Xueming Yang
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Ling Jiang
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
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108
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109
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Zhang J, Li G, Yuan Q, Zou J, Yang D, Zheng H, Wang C, Yang J, Jing Q, Liu Y, Fan H, Xie H. Photoelectron Velocity Map Imaging Spectroscopic and Theoretical Study of Heteronuclear MNi(CO)7– (M = V, Nb, Ta). J Phys Chem A 2020; 124:2264-2269. [DOI: 10.1021/acs.jpca.0c00313] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jumei Zhang
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
- University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, China
| | - Gang Li
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Qinqin Yuan
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Jinghan Zou
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Dong Yang
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Huijun Zheng
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Chong Wang
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Jianpeng Yang
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
| | - Qiangshan Jing
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
| | - Yanming Liu
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
| | - Hongjun Fan
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Hua Xie
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
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110
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Ferrari P, Libeert G, Tam NM, Janssens E. Interaction of carbon monoxide with doped metal clusters. CrystEngComm 2020. [DOI: 10.1039/d0ce00733a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Highlight of experimental and computational studies about the interaction of CO with transition and coinage metal clusters, particularly discussing the influence of dopant atoms.
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Affiliation(s)
- Piero Ferrari
- Quantum Solid-State Physics
- Department of Physics and Astronomy
- KU Leuven
- 3001 Leuven
- Belgium
| | - Guillaume Libeert
- Quantum Solid-State Physics
- Department of Physics and Astronomy
- KU Leuven
- 3001 Leuven
- Belgium
| | - Nguyen Minh Tam
- Computational Chemistry Research Group & Faculty of Applied Sciences
- Ton Duc Thang University
- Ho Chi Minh City
- Vietnam
| | - Ewald Janssens
- Quantum Solid-State Physics
- Department of Physics and Astronomy
- KU Leuven
- 3001 Leuven
- Belgium
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111
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Li XN, Jiang LX, Wang LN, Ou SH, Zhang MQ, Yang Y, Ma TM, He SG. An Eight-Atom Iridium-Aluminum Oxide Cluster IrAlO 6+ Catalytically Oxidizes Six CO Molecules. J Phys Chem Lett 2019; 10:7850-7855. [PMID: 31790248 DOI: 10.1021/acs.jpclett.9b03056] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Fundamental understanding regarding oxygen storage capacity involving how and why an active site can buffer a large number of oxygen atoms in redox processes is vital to the design of advanced oxygen storage materials, while it is challenging because of the complexity of heterogeneous catalysis. Herein, we identified that an eight-atom iridium-aluminum oxide cluster IrAlO6+ can transfer all the oxygen atoms to catalytically oxidize six CO molecules. This finding represents a breakthrough in cluster catalysis where at most three oxygen atoms from a heteronuclear metal oxide cluster can be catalytically involved in CO oxidation. We found that oxygen prefers to be stored on aluminum to form an O3-• radical in the energetically unfavorable IrAlO6+ isomer and generate the low-coordinated iridium that is pivotal to capturing CO and triggering the catalysis. The powerful electron cycling capability of iridium and the cooperative iridium-aluminum interplay are emphasized to drive the oxygen atom-transfer behavior.
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Affiliation(s)
- 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 and 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 and CAS Research/Education Center of Excellence in Molecular Sciences , Beijing 100190 , China
| | - 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 and CAS Research/Education Center of Excellence in Molecular Sciences , Beijing 100190 , China
| | - Shu-Hua Ou
- 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 510641 , China
| | - Mei-Qi Zhang
- 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 and CAS Research/Education Center of Excellence in Molecular Sciences , Beijing 100190 , China
| | - Yuan Yang
- 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 and CAS Research/Education Center of Excellence in Molecular Sciences , Beijing 100190 , China
| | - Tong-Mei Ma
- School of Chemistry and Chemical Engineering , South China University of Technology , 381 Wushan Road, Tianhe District , Guangzhou 510641 , 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 and CAS Research/Education Center of Excellence in Molecular Sciences , Beijing 100190 , China
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112
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Lu F, Li L, Zhang X, Nie Y, Geng Z. Enhancement of the Catalytic Activities of Heteronuclear Bimetallic Cations for the C-H Bond Activation of Cyclohexane. J Phys Chem A 2019; 123:10397-10405. [PMID: 31693370 DOI: 10.1021/acs.jpca.9b05715] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Heterometallic cations NiCu+ and CoNi+ can easily induce triple dehydrogenation of cyclohexane with high yield, and monometallic cations Ni+ and Co+ only give rise to double dehydrogenation with low yield. Reaction mechanisms of the six C-H bond activations for cyclohexane are systematically investigated by comparing the difference between bimetallic cations and monometallic ones. Fragment molecular orbital analysis clearly indicates that charge transfer (CT) occurs from the occupied interacting orbital of the metallic cation to the σ*-antibonding orbital of the first, third, and fifth activated C-H bonds in transition states. The synergistic effects of heteronuclear bimetallic cations result in the destabilization of the occupied interacting orbital in bimetallic cations, which raise the reactivity of bimetallic cations and enhance the CT between catalysts and substrates. Contrary to the absence of the third dehydrogenation product in the mononuclear metallic cation catalytic reaction, a significant amount of the third dehydrogenation product is observed in the presence of heteronuclear cations (NiCu+ and CoNi+). π back-bonding between Ni of heteronuclear metallic cations and the substrate cyclohexadiene plays an essential role in lowering the energies of transition states, which accelerate the third dehydrogenation. The reasons why heteronuclear bimetallic cations are more reactive than monometallic ones are discussed in detail.
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Affiliation(s)
- Feng Lu
- Gansu Key Laboratory of Polymer Materials, College of Chemistry and Chemical Engineering, Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education , Northwest Normal University , Lanzhou , Gansu 730070 , P. R. China.,Department of Metallurgical and Chemical Engineering , Gansu Vocational & Technical College of Nonferrous Metallurgy , Jinchang , Gansu 737100 , P. R. China
| | - Li Li
- Gansu Key Laboratory of Polymer Materials, College of Chemistry and Chemical Engineering, Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education , Northwest Normal University , Lanzhou , Gansu 730070 , P. R. China.,Department of Metallurgical and Chemical Engineering , Gansu Vocational & Technical College of Nonferrous Metallurgy , Jinchang , Gansu 737100 , P. R. China
| | - Xiaoxia Zhang
- Gansu Key Laboratory of Polymer Materials, College of Chemistry and Chemical Engineering, Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education , Northwest Normal University , Lanzhou , Gansu 730070 , P. R. China
| | - Yuxiu Nie
- Gansu Key Laboratory of Polymer Materials, College of Chemistry and Chemical Engineering, Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education , Northwest Normal University , Lanzhou , Gansu 730070 , P. R. China
| | - Zhiyuan Geng
- Gansu Key Laboratory of Polymer Materials, College of Chemistry and Chemical Engineering, Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education , Northwest Normal University , Lanzhou , Gansu 730070 , P. R. China
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113
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Mason JL, Harb H, Topolski JE, Hratchian HP, Jarrold CC. Exceptionally Complex Electronic Structures of Lanthanide Oxides and Small Molecules. Acc Chem Res 2019; 52:3265-3273. [PMID: 31702894 DOI: 10.1021/acs.accounts.9b00474] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Lanthanide (Ln) oxide clusters and molecular systems provide a bottom-up look at the electronic structures of the bulk materials because of close parallels in the patterns of Ln 4fN subshell occupancy between the molecular and bulk Ln2O3 size limits. At the same time, these clusters and molecules offer a challenge to the theory community to find appropriate and robust treatments for the 4fN patterns across the Ln series. Anion photoelectron (PE) spectroscopy provides a powerful experimental tool for studying these systems, mapping the energies of the ground and low-lying excited states of the neutral relative to the initial anion state, providing spectroscopic patterns that reflect the Ln 4fN occupancy. In this Account, we review our anion PE spectroscopic and computational studies on a range of small lanthanide molecules and cluster species. The PE spectra of LnO- (Ln = Ce, Pr, Sm, Eu) diatomic molecules show spectroscopic signatures associated with detachment of an electron from what can be described as a diffuse Ln 6s-like orbital. While the spectra of all four diatomics share this common transition, the fine structure in the transition becomes more complex with increasing 4f occupancy. This effect reflects increased coupling between the electrons occupying the corelike 4f and diffuse 6s orbitals with increasing N. Understanding the PE spectra of these diatomics sets the stage for interpreting the spectra of polyatomic molecular and cluster species. In general, the results confirm that the partial 4fN subshell occupancy is largely preserved between molecular and bulk oxides and borides. However, they also suggest that surfaces and edges of bulk materials may support a low-energy, diffuse Ln 6s band, in contrast to bulk interiors, in which the 6s band is destabilized relative to the 5d band. We also identify cases in which the molecular Ln centers have 4fN+1 occupancy rather than bulklike 4fN, which results in weaker Ln-O bonding. Specifically, Sm centers in mixed Ce-Sm oxides or in SmxOy- (y ≤ x) clusters have this higher 4fN+1 occupancy. The PE spectra of these particular species exhibit a striking increase in the relative intensities of excited-state transitions with decreasing photon energy (resulting in lower photoelectron kinetic energy). This is opposite of what is expected on the basis of the threshold laws that govern photodetachment. We relate this phenomenon to strong electron-neutral interactions unique to these complex electronic structures. The time scale of the interaction, which shakes up the electronic configuration of the neutral, increases with decreasing electron momentum. From a computational standpoint, we point out that special care must be taken when considering Ln cluster and molecular systems toward the center of the Ln series (e.g., Sm, Eu), where treatment of electrons explicitly or using an effective core potential can yield conflicting results on competing subshell occupancies. However, despite the complex electronic structures associated with partially filled 4fN subshells, we demonstrate that inexpensive and tractable calculations yield useful qualitative insight into the general electronic structural features.
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Affiliation(s)
- Jarrett L. Mason
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Hassan Harb
- Department of Chemistry and Chemical Biology and Center for Chemical Computation and Theory, University of California, Merced, 5200 North Lake Road, Merced, California 95343, United States
| | - Josey E. Topolski
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Hrant P. Hratchian
- Department of Chemistry and Chemical Biology and Center for Chemical Computation and Theory, University of California, Merced, 5200 North Lake Road, Merced, California 95343, United States
| | - Caroline Chick Jarrold
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
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114
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Wang M, Sun CX, Zhao Y, Cui JT, Ma JB. Efficient Liberation of Ammonia from Thermal Reaction of ScNH + Cations and Water. J Phys Chem A 2019; 123:7576-7581. [PMID: 31393727 DOI: 10.1021/acs.jpca.9b05890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ammonia synthesis by using water as a hydrogen source is a challenging task. Laser-ablation-generated ScNH+ cations have been mass-selected using a quadrupole mass filter and reacted with H2O in a linear ion trap reactor under thermal collision conditions. Through mass spectrometry in conjunction with density functional theory calculations, we found that ammonia is released as the product in the reaction of ScNH+ with H2O, and this reaction is with high efficiency and selectivity, and the rate constant for the reaction is (1.14 ± 0.23) × 10-10 cm3 molecule-1 s-1, corresponding to the reaction efficiency of 15%. Metal imido complexes (*MNH) are one of the important intermediates in the currently reported NH3 synthetic reactions. The gas-phase ScNH+ cation can be a simplified model of *MNH over catalysts of NH3 synthesis, and the facile proton transfer mechanism obtained in this model system may offer fundamental mechanistic insights into how to design catalysts for ammonia production by using water as the hydrogen source under ambient conditions.
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Affiliation(s)
- Ming Wang
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 100081 Beijing, China
| | - Chuan-Xin Sun
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 100081 Beijing, China
| | - Yue Zhao
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 100081 Beijing, China
| | - Jia-Tong Cui
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 100081 Beijing, China
| | - Jia-Bi Ma
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 100081 Beijing, China
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115
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Kratzl K, Kratky T, Günther S, Tomanec O, Zbořil R, Michalička J, Macak JM, Cokoja M, Fischer RA. Generation and Stabilization of Small Platinum Clusters Pt12±x Inside a Metal–Organic Framework. J Am Chem Soc 2019; 141:13962-13969. [DOI: 10.1021/jacs.9b07083] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kathrin Kratzl
- Catalysis Research Center, Technical University of Munich, Garching 85748, Germany
| | - Tim Kratky
- Catalysis Research Center, Technical University of Munich, Garching 85748, Germany
| | - Sebastian Günther
- Catalysis Research Center, Technical University of Munich, Garching 85748, Germany
| | - Ondřej Tomanec
- Regional Center of Advanced Technologies and Materials, Olomouc 78371, Czech Republic
| | - Radek Zbořil
- Regional Center of Advanced Technologies and Materials, Olomouc 78371, Czech Republic
| | - Jan Michalička
- Central European Institute of Technology, Brno 61200, Czech Republic
| | - Jan M. Macak
- Central European Institute of Technology, Brno 61200, Czech Republic
| | - Mirza Cokoja
- Catalysis Research Center, Technical University of Munich, Garching 85748, Germany
| | - Roland A. Fischer
- Catalysis Research Center, Technical University of Munich, Garching 85748, Germany
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116
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Li Y, Kong T, Shen S. Artificial Photosynthesis with Polymeric Carbon Nitride: When Meeting Metal Nanoparticles, Single Atoms, and Molecular Complexes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1900772. [PMID: 30977981 DOI: 10.1002/smll.201900772] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 03/17/2019] [Indexed: 05/28/2023]
Abstract
Artificial photosynthesis for solar water splitting and CO2 reduction to produce hydrogen and hydrocarbon fuels has been considered as one of the most promising ways to solve increasingly serious energy and environmental problems. As a well-documented metal-free semiconductor, polymeric carbon nitride (PCN) has been widely used and intensively investigated for photocatalytic water splitting and CO2 reduction, owing to its physicochemical stability, visible-light response, and facile synthesis. However, PCN as a photocatalyst still suffers from the fast recombination of electron-hole pairs and poor water redox reaction kinetics, greatly restricting its activity for artificial photosynthesis. Among the various modification approaches developed so far, decorating PCN with metals in different existences of nanoparticles, single atoms and molecular complexes, has been evidently very effective to overcome these limitations to improve photocatalytic performances. In this Review article, a systematic introduction to the state-of-the-art metal/PCN photocatalyst systems is given, with metals in versatility of nanoparticles, single atoms, and molecular complexes. Then, the recent processes of the metal/PCN photocatalyst systems in the applications of artificial photosynthesis, e.g., water splitting and CO2 reduction, are reviewed. Finally, the remaining challenges and opportunities for the development of high efficiency metal/PCN photocatalyst systems are presented and prospected.
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Affiliation(s)
- Yanrui Li
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Tingting Kong
- College of Chemistry and Chemical Engineering, Xi'an Shiyou University, Xi'an, 710054, China
| | - Shaohua Shen
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China
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117
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Hirabayashi S, Ichihashi M. Dehydrogenation of Methane by Partially Oxidized Tungsten Cluster Cations: High Reactivity Comparable to That of Platinum Cluster Cations. J Phys Chem A 2019; 123:6840-6847. [DOI: 10.1021/acs.jpca.9b04606] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
| | - Masahiko Ichihashi
- Cluster Research Laboratory, Toyota Technological Institute: in East Tokyo Laboratory, Genesis Research Institute, Inc., 717-86 Futamata, Ichikawa, Chiba 272-0001, Japan
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118
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Paz-Borbón LO, Buendía F, Garzón IL, Posada-Amarillas A, Illas F, Li J. CeO 2(111) electronic reducibility tuned by ultra-small supported bimetallic Pt-Cu clusters. Phys Chem Chem Phys 2019; 21:15286-15296. [PMID: 31090767 DOI: 10.1039/c9cp01772k] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Controlling Ce4+ to Ce3+ electronic reducibility in a rare-earth binary oxide such as CeO2 has enormous applications in heterogeneous catalysis, where a profound understanding of reactivity and selectivity at the atomic level is yet to be reached. Thus, in this work we report an extensive DFT-based Basin Hopping global optimization study to find the most stable bimetallic Pt-Cu clusters supported on the CeO2(111) oxide surface, involving up to 5 atoms in size for all compositions. Our PBE+U global optimization calculations indicate a preference for Pt-Cu clusters to adopt 2D planar geometries parallel to the oxide surface, due to the formation of strong metal bonds to oxygen surface sites and charge transfer effects. The calculated adsorption energy values (Eads) for both mono- and bimetallic systems are of the order of 1.79 up to 4.07 eV, implying a strong metal cluster interaction with the oxide surface. Our calculations indicate that at such sub-nanometer sizes, the number of Ce4+ surface atoms reduced to Ce3+ cations is mediated by the amount of Cu atoms within the cluster, reaching a maximum of three Ce3+ for a supported Cu5 cluster. Our computational results have critical implications on the continuous understanding of the strong metal-support interactions over reducible oxides such as CeO2, as well as the advancement of frontier research areas such as heterogeneous single-atom catalysts (SAC) and single-cluster catalysts (SCC).
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Affiliation(s)
- Lauro Oliver Paz-Borbón
- Instituto de Física, Universidad Nacional Autónoma de México, Apartado Postal 20-364, 01000 CDMX, Mexico.
| | - Fernando Buendía
- Instituto de Física, Universidad Nacional Autónoma de México, Apartado Postal 20-364, 01000 CDMX, Mexico.
| | - Ignacio L Garzón
- Instituto de Física, Universidad Nacional Autónoma de México, Apartado Postal 20-364, 01000 CDMX, Mexico.
| | - Alvaro Posada-Amarillas
- Departamento de Investigación en Física, Universidad de Sonora, Blvd. Luis Encinas & Rosales, 83000 Hermosillo, Sonora, Mexico
| | - Francesc Illas
- Departament de Ciència de Materials i Química Física & Institut de Quιmica Teòrica i Computacional (IQTCUB), de la Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Jun Li
- Department of Chemistry, Tsinghua University, Haidian District, Beijing 100084, China and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
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119
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Zhao Y, Cui JT, Wang M, Valdivielso DY, Fielicke A, Hu LR, Cheng X, Liu QY, Li ZY, He SG, Ma JB. Dinitrogen Fixation and Reduction by Ta3N3H0,1– Cluster Anions at Room Temperature: Hydrogen-Assisted Enhancement of Reactivity. J Am Chem Soc 2019; 141:12592-12600. [DOI: 10.1021/jacs.9b03168] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yue Zhao
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 100081 Beijing, China
| | - Jia-Tong Cui
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 100081 Beijing, China
| | - Ming Wang
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 100081 Beijing, China
| | - David Yubero Valdivielso
- Institute for Optics and Atomic Physics, Technische Universität Berlin, 10623 and Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4-6, 14195 Berlin, Germany
| | - André Fielicke
- Institute for Optics and Atomic Physics, Technische Universität Berlin, 10623 and Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4-6, 14195 Berlin, Germany
| | - Lian-Rui Hu
- School of Science, Xihua University, 610039 Chengdu, China
| | - Xin Cheng
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, 100190 Beijing, China
| | - Qing-Yu Liu
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, 100190 Beijing, China
| | - Zi-Yu Li
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, 100190 Beijing, China
| | - Sheng-Gui He
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, 100190 Beijing, China
| | - Jia-Bi Ma
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 100081 Beijing, China
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120
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Li XN, Wang LN, Mou LH, He SG. Catalytic CO Oxidation by Gas-Phase Metal Oxide Clusters. J Phys Chem A 2019; 123:9257-9267. [DOI: 10.1021/acs.jpca.9b05185] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- 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 and CAS Research/Education Center of Excellence in Molecular Sciences, Beijing 100190, China
| | - 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 and CAS Research/Education Center of Excellence in Molecular Sciences, Beijing 100190, China
| | - Li-Hui Mou
- 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 and 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 and CAS Research/Education Center of Excellence in Molecular Sciences, Beijing 100190, China
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121
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Ammonia borane dehydrogenation tendencies using Pt4, Au4, and Pt2Au2 clusters as catalysts. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2019.04.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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122
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Lang SM. Gas Phase Model Systems for Catalysis. Z PHYS CHEM 2019. [DOI: 10.1515/zpch-2019-1066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Sandra M. Lang
- Institute of Surface Chemistry and Catalysis, University of Ulm , Ulm , Germany
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123
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Lang SM, Bernhardt TM, Bakker JM, Yoon B, Landman U. Methanol C–O Bond Activation by Free Gold Clusters Probed via Infrared Photodissociation Spectroscopy. Z PHYS CHEM 2019. [DOI: 10.1515/zpch-2018-1368] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The activation of methanol (CD3OD and CD3OH) by small cationic gold clusters has been investigated via infrared multiphoton dissociation (IR-MPD) spectroscopy in the 615–1760 cm−1 frequency range. The C–O stretch mode around 925 cm−1 and a coupled CD3 deformation/C–O stretch mode around 1085 cm−1 are identified to be sensitive to the interaction between methanol and the gold clusters, whereas all other modes in the investigated spectral region remain unaffected. Based on the spectral shift of these modes, the largest C–O bond activation is observed for the mono-gold Au(CD3OD)+ cluster. This activation decreases with increasing the cluster size (number of gold atoms) and the number of adsorbed methanol molecules. Supporting density functional theory (DFT) calculations reveal that the C–O bond activation is caused by a methanol to gold charge donation, whereas the C–D and O–D bonds are not significantly activated by this process. The results are discussed with respect to previous experimental and theoretical investigations of neutral and cationic gold-methanol complexes focusing on the C–O stretch mode.
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Affiliation(s)
- Sandra M. Lang
- Institute of Surface Chemistry and Catalysis, University of Ulm , Albert-Einstein-Allee 47 , 89069 Ulm , Germany
- School of Physics, Georgia Institute of Technology , Atlanta , GA 30332-0430, USA
| | - Thorsten M. Bernhardt
- Institute of Surface Chemistry and Catalysis, University of Ulm , Albert-Einstein-Allee 47 , 89069 Ulm , Germany
| | - Joost M. Bakker
- Radboud University, Institute for Molecules and Materials, FELIX Laboratory , Toernooiveld 7c , 6525 ED Nijmegen , The Netherlands
| | - Bokwon Yoon
- School of Physics, Georgia Institute of Technology , Atlanta , GA 30332-0430, USA
| | - Uzi Landman
- School of Physics, Georgia Institute of Technology , Atlanta , GA 30332-0430, USA
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124
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Vanbuel J, Fernández EM, Jia MY, Ferrari P, Schöllkopf W, Balbás LC, Nguyen MT, Fielicke A, Janssens E. Hydrogen Chemisorption on Doubly Vanadium Doped Aluminum Clusters. Z PHYS CHEM 2019. [DOI: 10.1515/zpch-2019-1395] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The interaction of hydrogen with doubly vanadium doped aluminum clusters, Al
n
V2
+ (n = 1–12), is studied experimentally by time-of-flight mass spectrometry and infrared multiple photon dissociation spectroscopy. The hydrogen binding geometry is inferred from comparison with infrared spectra predicted by density functional theory and shows that for the more reactive clusters the hydrogen adsorbs dissociatively. Three sizes, n = 4, 5 and 7, are remarkably unreactive compared to the other clusters. For larger sizes the reactivity decreases, a behavior that is similar to that of singly vanadium doped aluminum clusters, and that might be attributed to geometric and/or electronic shielding of the dopants. By examining the electronic structure of Al6V2
+ and Al7V2
+, interactions between the frontier orbitals of the clusters and those of H2 that explain the size-dependent reactivity are identified.
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Affiliation(s)
- Jan Vanbuel
- Laboratory of Solid-State Physics and Magnetism , KU Leuven , 3001 Leuven , Belgium
| | - Eva M Fernández
- Departamento de Física Fundamental , Universidad Nacional de Educación a Distancia , 28040 Madrid , Spain
| | - Mei-ye Jia
- Laboratory of Solid-State Physics and Magnetism , KU Leuven , 3001 Leuven , Belgium
| | - Piero Ferrari
- Laboratory of Solid-State Physics and Magnetism , KU Leuven , 3001 Leuven , Belgium
| | - Wieland Schöllkopf
- Fritz-Haber-Institut der Max-Planck-Gesellschaft , 14195 Berlin , Germany
| | - Luis C Balbás
- Departamento de Física Teórica , Universidad de Valladolid , 47011 Valladolid , Spain
| | | | - André Fielicke
- Fritz-Haber-Institut der Max-Planck-Gesellschaft , 14195 Berlin , Germany
| | - Ewald Janssens
- Laboratory of Solid-State Physics and Magnetism , KU Leuven , 3001 Leuven , Belgium
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125
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Hao Z, Guo S, Guo L. Mechanisms investigation of the WGSR catalyzed by single noble metal atoms supported on vanadium oxide clusters. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4960] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zijun Hao
- The School of Chemical and Material ScienceShanxi Normal University Linfen 041004 China
| | - Sibei Guo
- The Second Clinical Medical College of Shanxi Medical University Taiyuan 030001 China
| | - Ling Guo
- The School of Chemical and Material ScienceShanxi Normal University Linfen 041004 China
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126
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Zhang J, Li Y, Liu Z, Li G, Fan H, Jiang L, Xie H. Ligand-Mediated Reactivity in CO Oxidation of Niobium-Nickel Monoxide Carbonyl Complexes: The Crucial Roles of the Multiple Adsorption of CO Molecules. J Phys Chem Lett 2019; 10:1566-1573. [PMID: 30840827 DOI: 10.1021/acs.jpclett.9b00205] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The heteronuclear metal oxide complexes are of great significance in heterogeneous catalytic oxidation of CO. However, previous studies are mainly focused on the composition of metal oxide, charge state, the support and the active oxygen species, with little attention paid to adsorbed CO ligands. Herein, the ligand-mediated reactivity in CO oxidation of niobium-nickel monoxide carbonyl complexes has been successfully identified. The NbNiO(CO) n- ( n = 5-6) anions are determined to be O-bridged complexes. In contrast, the NbNiO(CO) n- ( n = 7-8) anions are characterized to be η2-CO2-tagged complexes. The crucial roles of the multiply adsorbed CO molecules that can facilitate not only the competitive binding with bridging oxygen atom to the transition metal centers but also the electron accumulation of transition metal atoms have been discovered. The fascinating results are of substantial importance to understand the mechanisms of CO oxidation over heteronuclear metal oxide under CO-rich feed condition.
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Affiliation(s)
- Jumei Zhang
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials(iChEM) , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , 457 Zhongshan Road , Dalian 116023 , China
- University of Chinese Academy of Sciences , 19A Yuquan Road , Beijing 100049 , China
| | - Ya Li
- School of Chemical and Material Science, Key Laboratory of Magnetic Molecules & Magnetic Information Materials, Ministry of Education , Shanxi Normal University , No. 1, Gongyuan Street , Linfen , Shanxi 041004 , China
| | - Zhiling Liu
- School of Chemical and Material Science, Key Laboratory of Magnetic Molecules & Magnetic Information Materials, Ministry of Education , Shanxi Normal University , No. 1, Gongyuan Street , Linfen , Shanxi 041004 , China
| | - Gang Li
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials(iChEM) , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , 457 Zhongshan Road , Dalian 116023 , China
| | - Hongjun Fan
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials(iChEM) , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , 457 Zhongshan Road , Dalian 116023 , China
| | - Ling Jiang
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials(iChEM) , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , 457 Zhongshan Road , Dalian 116023 , China
| | - Hua Xie
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials(iChEM) , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , 457 Zhongshan Road , Dalian 116023 , China
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127
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Ou SH, Chen JJ, Li XN, Wang LN, Ma TM, He SG. CO oxidation by neutral gold-vanadium oxide clusters. CHINESE J CHEM PHYS 2019. [DOI: 10.1063/1674-0068/cjcp1812300] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Shu-hua Ou
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Jiao-jiao Chen
- 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 for 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 for Excellence in Molecular Sciences, Beijing 100190, China
| | - 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 for Excellence in Molecular Sciences, Beijing 100190, China
| | - Tong-mei Ma
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, 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 for Excellence in Molecular Sciences, Beijing 100190, China
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128
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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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129
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Wang LN, Li XN, He SG. Catalytic CO Oxidation by Noble-Metal-Free Ni 2VO 4,5- Clusters: A CO Self-Promoted Mechanism. J Phys Chem Lett 2019; 10:1133-1138. [PMID: 30802062 DOI: 10.1021/acs.jpclett.9b00047] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Catalytic CO oxidation is an important model reaction in gas-phase studies to provide a clear structure-reactivity understanding in related heterogeneous catalysis, whereas CO oxidation catalyzed by noble-metal (NM) free species has been scarcely reported, and the fundamental aspects are elusive. Herein a CO self-promoted mechanism of catalytic CO oxidation by O2 mediated with the Ni2VO4,5- clusters was experimentally identified and theoretically rationalized. The catalysis was characterized by mass spectrometry and quantum chemistry calculations. Ni2VO5- can oxidize CO to generate an oxygen-deficient product Ni2VO4-, which can only adsorb CO to give rise to Ni2VO4CO-, and the oxidative reactivity of Ni2VO4- can be boosted by the adsorbed CO. This finding reinforces the significance that the attached CO can modify the electronic structure of the Ni2 unit in Ni2VO4CO- and make the Ni2 unit behave like NM atoms to store the released electrons in an oxygen atom transfer process.
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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 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
- Beijing National Laboratory for Molecular Sciences , CAS Research/Education Center for Excellence in Molecular Sciences , Beijing 100190 , P. R. China
| | - Xiao-Na Li
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , P. R. China
- Beijing National Laboratory for Molecular Sciences , CAS Research/Education Center for Excellence in Molecular Sciences , Beijing 100190 , P. R. China
| | - Sheng-Gui He
- 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
- Beijing National Laboratory for Molecular Sciences , CAS Research/Education Center for Excellence in Molecular Sciences , Beijing 100190 , P. R. China
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130
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Greis K, Canty AJ, O’Hair RAJ. Gas-Phase Reactions of the Group 10 Organometallic Cations, [(phen)M(CH 3)] + with Acetone: Only Platinum Promotes a Catalytic Cycle via the Enolate [(phen)Pt(OC(CH 2)CH 3)] +. Z PHYS CHEM 2019. [DOI: 10.1515/zpch-2018-1355] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Electrospray ionisation of the ligated group 10 metal complexes [(phen)M(O2CCH3)2] (M = Ni, Pd, Pt) generates the cations [(phen)M(O2CCH3)]+, whose gas-phase chemistry was studied using multistage mass spectrometry experiments in an ion trap mass spectrometer with the combination of collision-induced dissociation (CID) and ion-molecule reactions (IMR). A new catalytic cycle has been discovered. In step 1, decarboxylation of [(phen)M(O2CCH3)]+ under CID conditions generates the organometallic cations [(phen)M(CH3)]+, which react with acetone to generate the [(phen)M(CH3)(OC(CH3)2)]+ adducts in competition with formation of the coordinated enolate for M = Pt (step 2). For M = Ni and Pd, the adducts regenerate [(phen)M(CH3)]+ upon CID. In the case of M = Pt, loss of methane is favored over loss of acetone and results in the formation of the enolate complex, [(phen)Pt(OC(CH2)CH3)]+. Upon further CID, both methane and CO loss can be observed resulting in the formation of the ketenyl and ethyl complexes [(phen)Pt(OCCH)]+ and [(phen)Pt(CH2CH3)]+ (step 3), respectively. In step 4, CID of [(phen)Pt(CH2CH3)]+ results in a beta-hydride elimination reaction to yield the hydride complex, [(phen)Pt(H)]+, which reacts with acetic acid to regenerate the acetate complex [(phen)Pt(O2CCH3)]+ and H2 in step 5. Thus, the catalytic cycle is formally closed, which corresponds to the decomposition of acetone and acetic acid into methane, CO, CO2, ethene and H2. All except the last step of the catalytic cycle are modelled using DFT calculations with optimizations of structures at the M06/SDD 6-31G(d) level of theory.
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Affiliation(s)
- Kim Greis
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne , Parkville, Victoria 3010 , Australia
- Institut Für Chemie, Humboldt-Universität zu Berlin , Brook-Taylor Straße 2 , 12489 Berlin , Germany
| | - Allan J. Canty
- School of Natural Sciences – Chemistry, University of Tasmania , Private Bag 75 , Hobart, Tasmania 7001 , Australia
| | - Richard A. J. O’Hair
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne , Parkville, Victoria 3010 , Australia
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131
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Sun X, Zhou S, Yue L, Schlangen M, Schwarz H. Thermal Activation of CH 4 and H 2 as Mediated by the Ruthenium Oxide Cluster Ions [RuO x ] + (x=1-3): On the Influence of Oxidation States. Chemistry 2019; 25:3550-3559. [PMID: 30681209 DOI: 10.1002/chem.201806187] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Indexed: 12/12/2022]
Abstract
Thermal gas-phase reactions of the ruthenium-oxide clusters [RuOx ]+ (x=1-3) with methane and dihydrogen have been explored by using FT-ICR mass spectrometry complemented by high-level quantum chemical calculations. For methane activation, as compared to the previously studied [RuO]+ /CH4 couple, the higher oxidized Ru systems give rise to completely different product distributions. [RuO2 ]+ brings about the generations of [Ru,O,C,H2 ]+ /H2 O, [Ru,O,C]+ /H2 /H2 O, and [Ru,O,H2 ]+ /CH2 O, whereas [RuO3 ]+ exhibits a higher selectivity and efficiency in producing formaldehyde and syngas (CO+H2 ). Regarding the reactions with H2 , as compared to CH4 , both [RuO]+ and [RuO2 ]+ react similarly inefficiently with oxygen-atom transfer being the main reaction channel; in contrast, [RuO3 ]+ is inert toward dihydrogen. Theoretical analysis reveals that the reduction of the metal center drives the overall oxidation of methane, whereas the back-bonding orbital interactions between the cluster ions and dihydrogen control the H-H bond activation. Furthermore, the reactivity patterns of [RuOx ]+ (x=1-3) with CH4 and H2 have been compared with the previously reported results of Group 8 analogues [OsOx ]+ /CH4 /H2 (x=1-3) and the [FeO]+ /H2 system. The electronic origins for their distinctly different reaction behaviors have been addressed.
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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.,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
| | - 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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132
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Chen JJ, Li XN, Chen Q, Liu QY, Jiang LX, He SG. Neutral Au 1-Doped Cluster Catalysts AuTi 2O 3-6 for CO Oxidation by O 2. J Am Chem Soc 2019; 141:2027-2034. [PMID: 30595020 DOI: 10.1021/jacs.8b11118] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Oxide supported gold catalysts (e.g., Au/TiO2) are of great significance in heterogeneous catalysis owing to their extraordinary catalytic activity. Study of heteronuclear metal oxide clusters (HMOCs, e.g., Au xTi yO z q) is an important way to uncover the molecular-level mechanisms of gold catalysis in the related heterogeneous catalytic systems. However, the current studies of HMOCs are focused on charged clusters with little attention paid to neutral species. The reactivity study of neutral HMOCs is vital to have a comprehensive understanding of heterogeneous catalysis, but it is experimentally challenging because of the difficulty of cluster ionization and detection without fragmentation. Herein, benefiting from a homemade time-of-flight mass spectrometer coupled with a vacuum ultraviolet laser system, the reactivity of neutral Au1-doped titanium oxide clusters AuTi2O3-6 in catalytic CO oxidation by O2 has been successfully identified. The mechanistic details of the catalysis have been elucidated by quantum chemistry calculations. The crucial roles of the mobile AuCO species that can facilitate not only the process of CO oxidation but also the process of O2 activation have been discovered in the cluster catalysis. The fascinating results are of substantial importance to understand the mechanisms of CO oxidation over Au/TiO2, one type of the best studied gold catalysts.
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Affiliation(s)
- Jiao-Jiao Chen
- 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
| | - Qiang Chen
- 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
| | - 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
| | - 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
| | - 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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133
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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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134
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Schwarz H, Asmis KR. Identification of Active Sites and Structural Characterization of Reactive Ionic Intermediates by Cryogenic Ion Trap Vibrational Spectroscopy. Chemistry 2019; 25:2112-2126. [PMID: 30623993 DOI: 10.1002/chem.201805836] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 01/07/2019] [Indexed: 01/02/2023]
Abstract
Cryogenic ion trap vibrational spectroscopy paired with quantum chemistry currently represents the most generally applicable approach for the structural investigation of gaseous cluster ions that are not amenable to direct absorption spectroscopy. Here, we give an overview of the most popular variants of infrared action spectroscopy and describe the advantages of using cryogenic ion traps in combination with messenger tagging and vibrational predissociation spectroscopy. We then highlight a few recent studies that apply this technique to identify highly reactive ionic intermediates and to characterize their reactive sites. We conclude by commenting on future challenges and potential developments in the field.
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Affiliation(s)
- Helmut Schwarz
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Knut R Asmis
- Wilhelm-Ostwald Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Linnéstr. 2, 04103, Leipzig, Germany
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135
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Zhang Y, Masuzaki D, Mafuné F. Hydrophilicity and oxophilicity of the isolated CaMn4O5 cationic cluster modeling inorganic core of the oxygen-evolving complex. Chem Commun (Camb) 2019; 55:14327-14330. [DOI: 10.1039/c9cc07818e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Isolated CaMn4O5+ was hardly formed in the presence of oxygen, whereas CaMn4O4(OH)2+ was formed stably in the presence of water.
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Affiliation(s)
- Yufei Zhang
- Department of Basic Science
- School of Arts and Sciences
- The University of Tokyo Komaba
- Tokyo 153-8902
- Japan
| | - Daigo Masuzaki
- Department of Basic Science
- School of Arts and Sciences
- The University of Tokyo Komaba
- Tokyo 153-8902
- Japan
| | - Fumitaka Mafuné
- Department of Basic Science
- School of Arts and Sciences
- The University of Tokyo Komaba
- Tokyo 153-8902
- Japan
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136
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DeVine JA, Babin MC, Neumark DM. Photoelectron spectra of Al2O2− and Al3O3−via slow electron velocity-map imaging. Faraday Discuss 2019; 217:235-255. [DOI: 10.1039/c8fd00165k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
High-resolution photoelectron spectroscopy of cryogenically-cooled aluminum oxide anions shows new subtleties in the vibronic structure of Al2O2−/0 and Al3O3−/0.
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Affiliation(s)
- Jessalyn A. DeVine
- Department of Chemistry
- University of California
- Berkeley
- USA
- Chemical Sciences Division
| | - Mark C. Babin
- Department of Chemistry
- University of California
- Berkeley
- USA
- Chemical Sciences Division
| | - Daniel M. Neumark
- Department of Chemistry
- University of California
- Berkeley
- USA
- Chemical Sciences Division
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137
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Lang SM, Bernhardt TM, Bakker JM, Yoon B, Landman U. The interaction of ethylene with free gold cluster cations: infrared photodissociation spectroscopy combined with electronic and vibrational structure calculations. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2018; 30:504001. [PMID: 30465551 DOI: 10.1088/1361-648x/aaeafd] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The interaction of ethylene with free gold clusters of different sizes and charge states has been previously shown theoretically to involve two different adsorption modes of the C2H4 molecule, namely: the di-σ- and π-bonded ethylene adsorption configurations. Here, we present the first experimental investigation of the structure of a series of gas-phase gold-ethylene complexes, [Formula: see text]. By employing infrared multiple-photon dissociation spectroscopy in conjunction with first-principles calculations it is revealed that up to three C2H4 molecules preferably bind to gold cations in a π-bonded configuration. The binding of all ethylene molecules is found to be dominated by partial electron donation from the ethylene molecules to the gold clusters leading to an activation of the C-C bond. The cooperative action of multiple coadsorbed C2H4 on [Formula: see text] is shown to enable additional charge back-donation and an enhanced C-C bond activation. In contrast, the strong C-H bond is not weakened and the experimental spectra do not give any indication for C-H bond dissociation. The possible correlations of the C-C bond stretch vibration with the C-C bond length and the net charge transfer are discussed.
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Affiliation(s)
- Sandra M Lang
- Institute of Surface Chemistry and Catalysis, University of Ulm, Albert-Einstein-Allee 47, 89069 Ulm, Germany. School of Physics, Georgia Institute of Technology, Atlanta, GA 30332-0430, United States of America
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138
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Samanta B, Sengupta T, Pal S. Aluminum cluster for CO and O 2 adsorption. J Mol Model 2018; 25:2. [PMID: 30523420 DOI: 10.1007/s00894-018-3869-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 10/31/2018] [Indexed: 10/27/2022]
Abstract
Low temperature oxidation of CO to CO2 is an important process for the environment. Similarly adsorption of CO from the releasing sources is also of major concern today. Whereas the potential of gold and silver clusters is well proven for the catalysis of the above mentioned reaction, the potential of aluminum (Al) clusters remains unexplored. The present study proves that, similar to the transition metals, Al clusters can also be used for adsorption of gases. We first tested the potential of Al cluster as adsorbents for CO. The high binding energy (BE) values prove that Al clusters can be used for adsorbing both CO and O2. Since oxygen binding is more facile, we adsorbed oxygen on Al and then checked the effect of this O2 on the BE of CO. The results were obtained by DFT calculations at M062X/TZVP level of theory. Graphical abstract Activation of carbon monoxide (CO) on oxygen-adsorbed aluminum (Al) cluster.
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Affiliation(s)
- Bipasa Samanta
- Department of Chemistry, Indian Institute of Technology, Powai, Mumbai, 400076, India.
| | - Turbasu Sengupta
- Physical Chemistry Division, CSIR National Chemical Laboratory, Pune, 411008, India
| | - Sourav Pal
- Department of Chemistry, Indian Institute of Technology, Powai, Mumbai, 400076, India. .,Department of Chemical Science, Indian Institute of Science Education and Research, Kolkata, Mohanpur, Nadia, West Bengal, 741246, India.
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139
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Abstract
The increasing supply of natural gas has created a strong demand for developing efficient catalytic processes to upgrade methane, the most stable alkane molecule, into value-added chemicals. Currently, methane conversion in laboratory and industry is mostly performed under high-temperature conditions. A lot of effort has been devoted to exploring chemical entities that are able to activate the C-H bond of methane at lower temperatures, preferably room temperature. Gas phase atomic clusters with limited numbers of atoms are ideal models of active sites on heterogeneous catalysts. The cluster systems are being actively studied to activate methane under room-temperature conditions. State-of-the-art mass spectrometry, photoelectron imaging spectroscopy, and quantum chemistry calculations have been combined in our laboratory to reveal the molecular-level mechanisms of methane activation by atomic clusters. In this Account, we summarize our recent progress on thermal methane activation by metal oxide clusters doped with noble-metal atoms (Au, Pt, and Rh) as well as by oxygen-free species including carbides and borides of base metals (V, Ta, Mo, and Fe). In contrast to the generations of CH3• free radicals in many of the previously reported cluster reactions with methane, the generations of stable products such as formaldehyde, acetylene, and syngas as well as closed-shell species AuCH3 and B3CH3 have been identified for the cluster reaction systems herein. Besides the well recognized mechanisms of methane activation by the O-• radicals through hydrogen atom abstraction and by metal atoms through oxidative addition, the new mechanisms of synergistic methane activation by Lewis acid-base pairs (such as Auδ+-Oδ- and Bδ+-Bδ-) and by dinuclear metal centers (such as Ta-Ta) have been recently revealed. In the reactions between methane and oxide clusters doped with noble-metal atoms, the oxide cluster "supports" can accept the H atoms and the CH x species delivered through the noble-metal atoms and then transform methane into stable oxygenated compounds. The product selectivity (such as formaldehyde versus syngas) can be controlled by different noble-metal atoms (such as Pt versus Rh). The electronic structures of base metal centers can be engineered through carburization so that the low-spin states can be accessible to reduce the C-H bond of methane. Such active base metal centers in low-spin states resemble related noble-metal atoms in methane activation. The boron clusters (such as B3 in VB3+) can be polarized by the metal cations to form the Lewis acid-base pair Bδ+-Bδ- to cleave the C-H bond of methane very easily. These molecular-level mechanisms may well be operative in related heterogeneous catalysis and can be a fundamental basis to design efficient catalysts for activation and conversion of methane under mild conditions.
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Affiliation(s)
- Yan-Xia Zhao
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- Beijing National
Laboratory for Molecular Sciences, CAS Research/Education Center of
Excellence in Molecular Sciences, Beijing 100190, P. R. China
| | - Zi-Yu Li
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- Beijing National
Laboratory for Molecular Sciences, CAS Research/Education Center of
Excellence in Molecular Sciences, Beijing 100190, P. R. China
| | - Yuan Yang
- 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
- Beijing National
Laboratory for Molecular Sciences, CAS Research/Education Center of
Excellence in Molecular Sciences, Beijing 100190, P. R. China
| | - Sheng-Gui He
- 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
- Beijing National
Laboratory for Molecular Sciences, CAS Research/Education Center of
Excellence in Molecular Sciences, Beijing 100190, P. R. China
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140
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Chen YM, Wang LN, Chen JJ, Chen Q, Jiang LX, Zhao YX, Ding XL, He SG. Mechanistic Variants in Methane Activation Mediated by Gold(I) Supported on Silicon Oxide Clusters. Chemistry 2018; 24:17506-17512. [DOI: 10.1002/chem.201803432] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Yi-Ming Chen
- State Key Laboratory for Structural Chemistry, of Unstable and Stable Species; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
- Department of Mathematics and Physics; North China Electric Power University; Beinong Road 2, Huilongguan Beijing 102206 P. R. China
| | - Li-Na Wang
- 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
- Beijing National Laboratory for Molecular Sciences, CAS; Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 P. R. China
| | - Jiao-Jiao Chen
- 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
- Beijing National Laboratory for Molecular Sciences, CAS; Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 P. R. China
| | - Qiang Chen
- State Key Laboratory for Structural Chemistry, of Unstable and Stable Species; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
- Beijing National Laboratory for Molecular Sciences, CAS; Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 P. R. China
| | - Li-Xue Jiang
- 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
- Beijing National Laboratory for Molecular Sciences, CAS; Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 P. R. China
| | - Yan-Xia Zhao
- State Key Laboratory for Structural Chemistry, of Unstable and Stable Species; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
- Beijing National Laboratory for Molecular Sciences, CAS; Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 P. R. China
| | - Xun-Lei Ding
- Department of Mathematics and Physics; North China Electric Power University; Beinong Road 2, Huilongguan Beijing 102206 P. R. China
| | - Sheng-Gui He
- 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
- Beijing National Laboratory for Molecular Sciences, CAS; Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 P. R. China
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141
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Ta 2 +-mediated ammonia synthesis from N 2 and H 2 at ambient temperature. Proc Natl Acad Sci U S A 2018; 115:11680-11687. [PMID: 30352846 DOI: 10.1073/pnas.1814610115] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
In a full catalytic cycle, bare Ta2 + in the highly diluted gas phase is able to mediate the formation of ammonia in a Haber-Bosch-like process starting from N2 and H2 at ambient temperature. This finding is the result of extensive quantum chemical calculations supported by experiments using Fourier transform ion cyclotron resonance MS. The planar Ta2N2 +, consisting of a four-membered ring of alternating Ta and N atoms, proved to be a key intermediate. It is formed in a highly exothermic process either by the reaction of Ta2 + with N2 from the educt side or with two molecules of NH3 from the product side. In the thermal reaction of Ta2 + with N2, the N≡N triple bond of dinitrogen is entirely broken. A detailed analysis of the frontier orbitals involved in the rate-determining step shows that this unexpected reaction is accomplished by the interplay of vacant and doubly occupied d-orbitals, which serve as both electron acceptors and electron donors during the cleavage of the triple bond of N≡N by the ditantalum center. The ability of Ta2 + to serve as a multipurpose tool is further shown by splitting the single bond of H2 in a less exothermic reaction as well. The insight into the microscopic mechanisms obtained may provide guidance for the rational design of polymetallic catalysts to bring about ammonia formation by the activation of molecular nitrogen and hydrogen at ambient conditions.
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142
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Masuzaki D, Takehashi Y, Mafuné F. Stability and Effect of Hydration on Calcium Oxide Cluster Ions, CanOm+, in the Gas Phase. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2018. [DOI: 10.1246/bcsj.20180149] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Daigo Masuzaki
- Department of Basic Science, School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
| | - Yuma Takehashi
- Department of Basic Science, School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
| | - Fumitaka Mafuné
- Department of Basic Science, School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
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143
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Pakiari AH, Salarhaji M. Introducing nano-particle-type properties of Ti (n=2–6) clusters. J Mol Graph Model 2018; 85:294-303. [DOI: 10.1016/j.jmgm.2018.09.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Revised: 09/08/2018] [Accepted: 09/10/2018] [Indexed: 10/28/2022]
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144
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Sweeny BC, Ard SG, Shuman NS, Viggiano AA. The Role of Non‐Reactive Binding Sites in the AlVO
4
+
+CO/AlVO
3
+
+N
2
O Catalytic Cycle. Chemphyschem 2018; 19:2835-2838. [DOI: 10.1002/cphc.201800714] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Indexed: 01/02/2023]
Affiliation(s)
- Brendan C. Sweeny
- National Academy of Sciences Washington DC 20001
- Air Force Research Laboratory, Space Vehicles Directorate Kirtland Air Force Base New Mexico 87117
| | - Shaun G. Ard
- Institute for Scientific Research Boston College Boston MA 02467
- Air Force Research Laboratory, Space Vehicles Directorate Kirtland Air Force Base New Mexico 87117
| | - Nicholas S. Shuman
- Air Force Research Laboratory, Space Vehicles Directorate Kirtland Air Force Base New Mexico 87117
| | - Albert A. Viggiano
- Air Force Research Laboratory, Space Vehicles Directorate Kirtland Air Force Base New Mexico 87117
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145
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Taylor WS, Pedder RE, Eden AB, Emmerling CL. Systematic Ligand Effects in the Reactions of Fe +( 6D) and FeX +( 5Δ) with CF 3X (X = Cl, Br, I). Ion Mobility Measurements of FeX +( 5Δ) (X = F, Cl, Br, I) in He. J Phys Chem A 2018; 122:6509-6523. [PMID: 30020785 DOI: 10.1021/acs.jpca.8b05708] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The gas phase reactions of Fe+(6D) and FeX+(5Δ) with CF3X (X = Cl, Br, I) were examined using a selected-ion drift cell reactor under near-thermal energetic conditions. All reactions were carried out in a uniform electric field at a total pressure of 3.5 Torr at room temperature. In addition, reduced zero-field mobilities were measured for FeX+(5Δ) (X = F, Cl, Br, I) in He, yielding values of 14.2 ± 0.4, 13.7 ± 0.3, 13.3 ± 0.2, and 13.0 ± 0.3 cm2·V-1·s-1, respectively. Fe+(6D) reacts slowly with CF3Cl and CF3Br, producing an adduct exclusively with the former and FeBr+ with the latter. Conversely, Fe+(6D) exhibits efficient chemistry with CF3I to yield FeI+, FeCF3+, and FeFI+ in parallel reactions. Dependent on the halogen, FeX+(5Δ) reactions display one or more of four different processes: F- abstraction, X- abstraction, halogen switching, and association. In general, the presence of the halogen ligand enhances the rate of reaction over that of Fe+(6D) with the same molecular substrate. With CF3Cl, this ligand effect is observed to vary systematically with the electron-withdrawing capability of the halogen. This is illustrated by the correlation between reaction efficiency and the charge distribution on FeX+(5Δ) as determined from DFT calculations. Specific reaction outcomes for the FeX+(5Δ) reactions lead to upper and lower bounds on XFe-Y bond strengths (X, Y = F, Cl, Br, I) that are generally consistent with one another and with known trends.
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Affiliation(s)
- William S Taylor
- Department of Chemistry University of Central Arkansas Conway , Arkansas 72035 , United States
| | - Randall E Pedder
- Department of Chemistry University of Central Arkansas Conway , Arkansas 72035 , United States
| | - Angela B Eden
- Department of Chemistry University of Central Arkansas Conway , Arkansas 72035 , United States
| | - Christopher L Emmerling
- Department of Chemistry University of Central Arkansas Conway , Arkansas 72035 , United States
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146
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Topolski JE, Kafader JO, Marrero-Colon V, Iyengar SS, Hratchian HP, Jarrold CC. Exotic electronic structures of SmxCe3−xOy (x = 0-3; y = 2-4) clusters and the effect of high neutral density of low-lying states on photodetachment transition intensities. J Chem Phys 2018; 149:054305. [DOI: 10.1063/1.5043490] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
- Josey E. Topolski
- Department of Chemistry, Indiana University, 800 East Kirkwood Ave., Bloomington, Indiana 47405, USA
| | - Jared O. Kafader
- Department of Chemistry, Indiana University, 800 East Kirkwood Ave., Bloomington, Indiana 47405, USA
| | - Vicmarie Marrero-Colon
- Department of Chemistry, Indiana University, 800 East Kirkwood Ave., Bloomington, Indiana 47405, USA
| | - Srinivasan S. Iyengar
- Department of Chemistry, Indiana University, 800 East Kirkwood Ave., Bloomington, Indiana 47405, USA
| | - Hrant P. Hratchian
- Department of Chemistry and Chemical Biology, University of California, Merced, 5200 North Lake Road, Merced, California 95343, USA
| | - Caroline Chick Jarrold
- Department of Chemistry, Indiana University, 800 East Kirkwood Ave., Bloomington, Indiana 47405, USA
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147
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Jiang LX, Li XN, Li ZY, Li HF, He SG. H2 dissociation by Au1-doped closed-shell titanium oxide cluster anions. CHINESE J CHEM PHYS 2018. [DOI: 10.1063/1674-0068/31/cjcp1805107] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- 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
| | - 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
| | - Zi-yu 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
| | - Hai-fang 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
| | - 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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148
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Pellizzeri S, Barona M, Bernales V, Miró P, Liao P, Gagliardi L, Snurr RQ, Getman RB. Catalytic descriptors and electronic properties of single-site catalysts for ethene dimerization to 1-butene. Catal Today 2018. [DOI: 10.1016/j.cattod.2018.02.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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149
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Zou XP, Wang LN, Li XN, Liu QY, Zhao YX, Ma TM, He SG. Noble-Metal-Free Single-Atom Catalysts CuAl4
O7-9
−
for CO Oxidation by O2. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807056] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xiu-Ping Zou
- 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 510641 China
| | - 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
| | - 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
| | - Yan-Xia Zhao
- 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
| | - Tong-Mei Ma
- School of Chemistry and Chemical Engineering; South China University of Technology; 381 Wushan Road, Tianhe District Guangzhou 510641 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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150
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Zou XP, Wang LN, Li XN, Liu QY, Zhao YX, Ma TM, He SG. Noble-Metal-Free Single-Atom Catalysts CuAl4
O7-9
−
for CO Oxidation by O2. Angew Chem Int Ed Engl 2018; 57:10989-10993. [DOI: 10.1002/anie.201807056] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Xiu-Ping Zou
- 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 510641 China
| | - 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
| | - 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
| | - Yan-Xia Zhao
- 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
| | - Tong-Mei Ma
- School of Chemistry and Chemical Engineering; South China University of Technology; 381 Wushan Road, Tianhe District Guangzhou 510641 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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