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Junxi L, Bomiao Q, Mengmeng L, Fupeng Z, Fang R, Zhibin L, Shaofeng P, Shujuan M, Yanbin W, Qiong S. Insights into selectivity of some oxygen containing gases by the CHCl •– anion from molecular simulation. MOLECULAR SIMULATION 2023. [DOI: 10.1080/08927022.2023.2189983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
Affiliation(s)
- Liang Junxi
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Gansu Provincial Biomass Function Composites Engineering Research Center, Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou, People’s Republic of China
| | - Qi Bomiao
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Gansu Provincial Biomass Function Composites Engineering Research Center, Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou, People’s Republic of China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, People’s Republic of China
| | - Lu Mengmeng
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Gansu Provincial Biomass Function Composites Engineering Research Center, Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou, People’s Republic of China
| | - Zhang Fupeng
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Gansu Provincial Biomass Function Composites Engineering Research Center, Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou, People’s Republic of China
| | - Ren Fang
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Gansu Provincial Biomass Function Composites Engineering Research Center, Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou, People’s Republic of China
| | - Lu Zhibin
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, People’s Republic of China
| | - Pang Shaofeng
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Gansu Provincial Biomass Function Composites Engineering Research Center, Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou, People’s Republic of China
| | - Meng Shujuan
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Gansu Provincial Biomass Function Composites Engineering Research Center, Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou, People’s Republic of China
| | - Wang Yanbin
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Gansu Provincial Biomass Function Composites Engineering Research Center, Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou, People’s Republic of China
| | - Su Qiong
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Gansu Provincial Biomass Function Composites Engineering Research Center, Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou, People’s Republic of China
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Megha, Banerjee A, Ghanty TK. Role of metcar on the adsorption and activation of carbon dioxide: a DFT study. Phys Chem Chem Phys 2021; 23:5559-5570. [PMID: 33651070 DOI: 10.1039/d0cp05756h] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Metallocarbohedrenes or metcars belong to one of the classes of stable nanoclusters having a specific stoichiometry. In spite of the available theoretical and experimental studies, the structure of pristine Ti8C12 metcar is still uncertain. We study the geometric structure of a titanium metcar, Ti8C12, together with its electronic properties and chemical activity towards adsorption and activation of CO2 molecule by means of density functional theory. Our results suggest that the CO2 molecule is strongly adsorbed and undergoes a significantly high degree of activation onto the Ti8C12 metcar. The migration of charge from titanium metcar to CO2 molecule attributes the high degree of activation of this molecule. In the infrared vibrational spectra for CO2 molecule adsorbed onto Ti8C12, we find a new signal which is absent in the corresponding spectra for gaseous CO2. In addition to adsorption energy, we also estimate the energy barrier for the dissociation of CO2 molecule to CO and O fragments on a Ti8C12 cluster. As a whole, this work reveals the ground state geometry of Ti8C12 metcar and highlights the role of this metcar in CO2 adsorption and activation, which are the key steps in designing potential catalysts for CO2 capture and its conversion to industrially valuable chemicals.
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Affiliation(s)
- Megha
- Human Resources Development Section, Raja Ramanna Centre for Advanced Technology, Indore 452013, India and Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Arup Banerjee
- Human Resources Development Section, Raja Ramanna Centre for Advanced Technology, Indore 452013, India and Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Tapan K Ghanty
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India and Theoretical Chemistry Section, Chemistry Group, Bhabha Atomic Research Centre, Mumbai 400085, India and Bio-Science Group, Bhabha Atomic Research Centre, Mumbai 400085, India.
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Sengupta T, Khan MS, Pal S. Mechanistic Investigation of the Carbon-Iodine Bond Activation on the Niobium-Carbon Cluster. ACS OMEGA 2017; 2:5335-5347. [PMID: 31457802 PMCID: PMC6644337 DOI: 10.1021/acsomega.7b00894] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 08/18/2017] [Indexed: 05/10/2023]
Abstract
The activation process of carbon-iodine (C-I) bond on neutral and cationic niobium metcars (Nb8C12) is investigated using density functional theory and related computational techniques. Metallocarbohedrenes or metcars are a class of stable metal-carbide clusters of specific stoichiometry and of great interest to cluster chemists since their first discovery. The detailed reaction mechanism along with the overall energy profile of the C-I dissociation reaction on niobium metcar and its cations is presented in this paper. The tunneling-corrected rate constants and their related reaction parameters such as the pre-exponential factor are also included alongside. The major differences between the reaction mechanism of the neutral and cationic metcars are also highlighted as well. Despite the available experimental results, the C-I bond dissociation on metcars has remained an unexplored problem in the theoretical and computational domains. Thus, the present investigation can fill in the gap and may also provide new insights provoking further developments in cluster and materials chemistry in future.
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Affiliation(s)
- Turbasu Sengupta
- Physical
Chemistry Division, CSIR National Chemical
Laboratory, Pune 411008, India
| | - Muntazir S. Khan
- Physical
Chemistry Division, CSIR National Chemical
Laboratory, Pune 411008, India
| | - Sourav Pal
- Department
of Chemistry, Indian Institute of Technology
Bombay, Powai, Mumbai 400076, India
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Affiliation(s)
- Stefan Vajda
- Materials
Science Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
- Nanoscience
and Technology Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
- Institute
for Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
- Department
of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520, United States
| | - Michael G. White
- Chemistry
Department, Brookhaven National Laboratory, Upton, New York 11973, United States
- Department
of Chemistry, Stony Brook University, Stony Brook, New York 11794, United States
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5
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Clayborne PA, Jones CE, Gupta U, Melko JJ, Khanna SN, Castleman AW. Structural evolution of triniobium carbide clusters: evidence of large Cn chains (n = 3-4) in Nb3Cn- (n = 5-10) clusters. J Phys Chem A 2010; 114:1290-7. [PMID: 19673506 DOI: 10.1021/jp905022p] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
First-principle density functional calculations and photoelectron spectroscopy experiments show that triniobium carbide clusters exist in multiple motifs. The Nb(3)C(n)(-) (n = 5-10) series have isomers surrounding a triangular Nb(3) base while incorporating Nb-C bonding. We provide evidence of not only C(2) carbon chains but also stable isomers with previously unidentified C(3) and C(4) carbon chains in triniobium carbide clusters.
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Affiliation(s)
- Peneé A Clayborne
- Department of Physics, Virginia Commonwealth University, Richmond, Virginia 23284-2000, USA
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Henderson MA, Kwok S, McIndoe JS. Gas-phase reactivity of ruthenium carbonyl cluster anions. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2009; 20:658-666. [PMID: 19185511 DOI: 10.1016/j.jasms.2008.12.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2008] [Revised: 12/02/2008] [Accepted: 12/02/2008] [Indexed: 05/27/2023]
Abstract
Partially-ligated anionic ruthenium carbonyl clusters react with alkenes, arenes, and alkanes in the gas phase; the products undergo extensive C-H activation and lose dihydrogen and carbon monoxide under collision-induced dissociation conditions. Triethylsilane and phenylsilane are also reactive towards the unsaturated clusters, and oxygen was shown to rapidly break down the cluster core by oxidative cleavage of the metal-metal bonds. These qualitative gas-phase reactivity studies were conducted using an easily-installed and inexpensive modification of a commercial electrospray ionization mass spectrometer. Interpretation of the large amounts of data generated in these studies is made relatively straightforward by employing energy-dependent electrospray ionization mass spectrometry (EDESI-MS).
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Affiliation(s)
- Matthew A Henderson
- Department of Chemistry, University of Victoria, Victoria, British Columbia, Canada
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Patterson MJ, Lightstone JM, White MG. Structure of Molybdenum and Tungsten Sulfide MxSy+ Clusters: Experiment and DFT Calculations. J Phys Chem A 2008; 112:12011-21. [DOI: 10.1021/jp807318c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Melissa J. Patterson
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11974, and Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973
| | - James M. Lightstone
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11974, and Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973
| | - Michael G. White
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11974, and Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973
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Viñes F, Rodriguez JA, Liu P, Illas F. Catalyst size matters: Tuning the molecular mechanism of the water–gas shift reaction on titanium carbide based compounds. J Catal 2008. [DOI: 10.1016/j.jcat.2008.09.011] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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