1
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Kolodney E, Armon E, Bekkerman A, Bernstein V, Tsipinyuk B. Velocity correlated emission of secondary clusters by a single surface impact of a polyatomic ion: A new mechanism of clusters emission and subpicosecond probing of extreme spike conditions. Phys Chem Chem Phys 2022; 24:19634-19658. [DOI: 10.1039/d2cp00145d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Emission of secondary clusters off clean solid surfaces following impact of a projectile ion at kiloelectronvolt (keV) kinetic energies is important from both the practical and fundamental points of view....
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2
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High throughput computational screening of tantalum based small metal clusters for nitrogen fixation. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2021.120700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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3
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Lu SJ, Wang K. Structural Determination and Bonding Properties of Gas-Phase Ternary [O, Ta, 2C] - Anions. J Phys Chem A 2021; 125:8907-8911. [PMID: 34601877 DOI: 10.1021/acs.jpca.1c07412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A combined anion photoelectron spectroscopic and quantum chemical investigation was performed to explore the structures and bonding properties of ternary [O, Ta, 2C]- anions. The atomic bonding connectivity of the ternary anion was found to be (O-Ta-C2)- rather than (Ta-O-C2)-. The photoelectron spectrum using 266 nm photons was measured, and the theoretical simulated spectrum was calculated, with good agreement between experimental and theoretical results being found. Computations obtained electronic energies and low-energy structures and enabled chemical bonding analyses. The experimental vertical detachment energies of OTaC2- were measured to be 2.85 ± 0.08 eV. OTaC2- exhibits π aromaticity with two delocalized π electrons and σ antiaromaticity.
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Affiliation(s)
- Sheng-Jie Lu
- College of Chemistry and Chemical Engineering, Heze University, Heze, Shandong 274015, China.,Beijing National Laboratory for Molecular Sciences, Beijing 100190, China
| | - Kang Wang
- College of Physics and Electronic Engineering, Heze University, Heze, Shandong Province 274015, China
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4
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Jiang GD, Mou LH, Chen JJ, Li ZY, He SG. Reactivity of Neutral Tantalum Sulfide Clusters Ta 3S n ( n = 0-4) with N 2. J Phys Chem A 2020; 124:7749-7755. [PMID: 32840105 DOI: 10.1021/acs.jpca.0c06462] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Nitrogen (N2) fixation is a challenging and vital issue in chemistry. Inspired by the fact that the active sites of nitrogenases are polynuclear metal sulfide clusters, the reactivity of gas-phase metal sulfide clusters toward N2 has received considerable attention to gain fundamental insights into nitrogen fixation. Herein, neutral tantalum sulfide clusters have been prepared and their reactivity toward N2 has been investigated by mass spectrometry in conjunction with density functional theory (DFT) calculations. The experimental results showed that Ta3Sn (n = 0-3) could adsorb N2, while Ta3S4 was inert to N2. The DFT calculations revealed that the complete cleavage of the N≡N bond on the trinuclear metal center in the Ta3S0-3/N2 reaction systems was overall barrierless under thermal collision conditions. The sulfur ligands can facilitate the approaching of N2 toward the metal center but weaken the electron-donating ability of the metal center. The inertness of Ta3S4 is ascribed to the electron-deficient state of Ta3 in Ta3S4 and the least effective orbital interaction in the Ta3S4/N2 couple. This study provides new insights into the ligand effect on the interaction of the metal clusters with N2.
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Affiliation(s)
- Gui-Duo 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 and CAS Research/Education Center of Excellence in Molecular Sciences, Beijing 100190, P. R. China
| | - Li-Hui Mou
- 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 and 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 and 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 and 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 and CAS Research/Education Center of Excellence in Molecular Sciences, Beijing 100190, P. R. China
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5
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Hardy RA, Karayilan AM, Metha GF. Using Photoionization Efficiency Spectroscopy and Density Functional Theory to Investigate Charge Transfer Interactions in AuCe3On Clusters. J Phys Chem A 2020; 124:5812-5823. [DOI: 10.1021/acs.jpca.0c02310] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Robert A. Hardy
- Department of Chemistry, The University of Adelaide, South Australia 5005, Australia
| | - Aidan M. Karayilan
- Department of Chemistry, The University of Adelaide, South Australia 5005, Australia
| | - Gregory F. Metha
- Department of Chemistry, The University of Adelaide, South Australia 5005, Australia
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6
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Hardy RA, Karayilan AM, Metha GF. Investigating Charge Transfer Interactions in AuCe2On Clusters Using Photoionization Efficiency Spectroscopy and Density Functional Theory. J Phys Chem A 2019; 123:10158-10168. [DOI: 10.1021/acs.jpca.9b09199] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Robert A. Hardy
- Department of Chemistry, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Aidan M. Karayilan
- Department of Chemistry, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Gregory F. Metha
- Department of Chemistry, The University of Adelaide, Adelaide, South Australia 5005, Australia
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7
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Li X, Chen Y, Basnet P, Luo J, Wang H. Probing the properties of size dependence and correlation for tantalum clusters: geometry, stability, vibrational spectra, magnetism, and electronic structure. RSC Adv 2019; 9:1015-1028. [PMID: 35517637 PMCID: PMC9059546 DOI: 10.1039/c8ra09240k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 12/20/2018] [Indexed: 11/30/2022] Open
Abstract
A comprehensive investigation on the equilibrium geometry, relative stability, vibrational spectra, and magnetic and electronic properties of neutral tantalum clusters (Tan, n = 2–17) was performed using density functional theory (DFT). We perform a study of the size dependence and correlations among those descriptors of parameters, and showed these could provide a novel way to confirm and predict experimental results. Some new isomer configurations that have never been reported before for tantalum clusters were found. The growth behaviors revealed that a compact geometrical growth route is preferred and develops a body-centered-cubic (BCC) structure with the cluster size increasing. The perfectly fitted functional curve, strong linear evolution, and obvious odd–even oscillation behavior proved their corresponding properties depended on the cluster size. Multiple demonstrations of the magic number were confirmed through the correlated relationships with the relative stability, including the second difference in energy, maximum hardness, and minimum polarizability. An inverse evolution trend between the energy gap and electric dipole moment and strong linear correlation between ionization potentials and polarizability indicated the strong correlation between the magnetic and electronic properties. Vibrational spectroscopy as a fingerprint was used to distinguish the ground state among the competitive geometrical isomers close in energy. The charge density difference isosurface, density of states, and molecular orbitals of selected representative clusters were analyzed to investigate the difference and evolutional trend of the relative stability and electronic structure. In addition, we first calculated the ionization potential and magnetic moment and compared these with the current available experimental data for tantalum clusters. A comprehensive investigation on the equilibrium geometry, relative stability, vibrational spectra, and magnetic and electronic properties of neutral tantalum clusters (Tan, n = 2–17) was performed using density functional theory (DFT).![]()
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Affiliation(s)
- Xibo Li
- Science and Technology on Plasma Physics Laboratory
- Laser Fusion Research Center
- China Academy of Engineering Physics
- Mianyang
- China
| | - Yuqi Chen
- School of Physical Science and Technology
- Southwest Jiaotong University
- Chengdu
- China
| | - Pradip Basnet
- School of Materials Science and Engineering
- Georgia Institute of Technology
- Atlanta
- USA
| | - Jiangshan Luo
- Science and Technology on Plasma Physics Laboratory
- Laser Fusion Research Center
- China Academy of Engineering Physics
- Mianyang
- China
| | - Hongyan Wang
- School of Physical Science and Technology
- Southwest Jiaotong University
- Chengdu
- China
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8
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Mou LH, Liu QY, Zhang T, Li ZY, He SG. Reactivity of Tantalum Carbide Cluster Anions TaC n- ( n = 1-4) with Dinitrogen. J Phys Chem A 2018; 122:3489-3495. [PMID: 29547291 DOI: 10.1021/acs.jpca.8b01329] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Dinitrogen activation/fixation is one of the most important and challenging subjects in synthetic as well as theoretical chemistry. In this study, the adsorption reactions of N2 onto TaC n- ( n = 1-4) cluster anions have been investigated by means of mass spectrometry in conjunction with density functional theory calculations. Following the experimental results that only TaC4- was observed to adsorb N2, theoretical calculations predicted that the TaC4- reaction system (TaC4- + N2 → TaC4N2-) has a negligible barrier on the approach of N2 molecule while insurmountable barriers are located on the reaction pathways of TaC1-3-/N2 reaction systems. The natural bond orbital and molecular orbital analysis indicated that the more positive charge on the metal center of TaC1-4- would facilitate the initial approach of the nonpolar N2 molecule, and the appropriate frontier orbital of TaC1-4- with proper symmetry (π-type 5d orbital) which can match up well with the π* antibonding orbital of the N2 molecule with less σ repulsion and more possibility for π back-donation would be helpful for the formation of the stable encounter complexes. This study reveals the fundamental rules and key factors governing the N2 adsorption.
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Affiliation(s)
- Li-Hui Mou
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China.,University of Chinese Academy of Sciences, Beijing 100049 , P. R. China
| | - Qing-Yu Liu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China
| | - Ting Zhang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China.,University of Chinese Academy of Sciences, Beijing 100049 , P. R. China
| | - Zi-Yu Li
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China
| | - Sheng-Gui He
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China.,University of Chinese Academy of Sciences, Beijing 100049 , P. R. China
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9
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Hudson RJ, Falcinella A, Metha GF. Molecular geometries and relative stabilities of titanium oxide and gold-titanium oxide clusters. Chem Phys 2016. [DOI: 10.1016/j.chemphys.2016.08.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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10
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Armon E, Bekkerman A, Cohen Y, Bernstein J, Tsipinyuk B, Kolodney E. Direct experimental observation of a new mechanism for sputtering of solids by a large polyatomic projectile: velocity-correlated cluster emission. PHYSICAL REVIEW LETTERS 2014; 113:027604. [PMID: 25062236 DOI: 10.1103/physrevlett.113.027604] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Indexed: 06/03/2023]
Abstract
We have measured kinetic energy distributions of Ta(n)C(n)(+) (n=1-10) and Ag(n)(+) (n=1-9) cluster ions sputtered off Ta and Ag targets, following impact of C(60)(-) at 14 keV kinetic energy. A gradual increase of the most probable kinetic energies with increased size of the emitted cluster was observed (nearly the same velocity for all n values). This behavior is in sharp contrast to that reported for cluster emission induced by the impact of a monoatomic projectile. Our observation is in good agreement with a mechanism based on the new concept of a superhot moving precursor as the source of the emitted clusters.
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Affiliation(s)
- E Armon
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - A Bekkerman
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Y Cohen
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - J Bernstein
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - B Tsipinyuk
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - E Kolodney
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
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11
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Harding DJ, Kerpal C, Meijer G, Fielicke A. Unusual Bonding in Platinum Carbido Clusters. J Phys Chem Lett 2013; 4:892-896. [PMID: 26291352 DOI: 10.1021/jz400256d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Vibrational spectroscopy and density functional theory calculations are used to determine the structures of small gas-phase platinum carbido clusters PtnC(+), n = 3-5. The carbon atom is found to prefer three-coordinate binding sites near the center of the cluster, in contrast to most previously investigated adatoms on transition metal clusters. The Pt3C unit is particularly stable, and binding of the carbon atom also leads to significant rearrangement of the metal framework when compared to the bare clusters.
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Affiliation(s)
- Dan J Harding
- †Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
- ‡Institut für Physikalische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 6, D-37077 Göttingen, Germany
- §Dept. of Dynamics at Surfaces, Max-Planck-Institut für biophysikalische Chemie, Am Fassberg 11, D-37077 Göttingen, Germany
| | - Christian Kerpal
- †Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
| | - Gerard Meijer
- †Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
| | - André Fielicke
- †Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
- ∥Institut für Optik und Atomare Physik, Technische Universität Berlin, Hardenbergstrasse 36, D-10623, Germany
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12
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13
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Blumling DE, Sayres SG, Castleman AW. Strong-Field Ionization and Dissociation Studies on Small Early Transition Metal Carbide Clusters via Time-of-Flight Mass Spectrometry. J Phys Chem A 2011; 115:5038-43. [DOI: 10.1021/jp200506r] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Daniel E. Blumling
- Departments of Chemistry and §Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Scott G. Sayres
- Departments of Chemistry and §Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - A. W. Castleman
- Departments of Chemistry and §Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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14
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Dryza V, Alvino JF, Metha GF. Onset of Carbon−Carbon Bonding in Ta5Cy(y= 0−6) Clusters: A Threshold Photoionization and Density Functional Theory Study. J Phys Chem A 2010; 114:4080-5. [PMID: 20192196 DOI: 10.1021/jp100118r] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Viktoras Dryza
- Department of Chemistry, The University of Adelaide, South Australia 5005, Australia
| | - Jason F. Alvino
- Department of Chemistry, The University of Adelaide, South Australia 5005, Australia
| | - Gregory F. Metha
- Department of Chemistry, The University of Adelaide, South Australia 5005, Australia
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15
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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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16
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Dong F, Heinbuch S, Xie Y, Rocca JJ, Bernstein ER. Experimental and theoretical study of neutral AlmCn and AlmCnHx clusters. Phys Chem Chem Phys 2010; 12:2569-81. [DOI: 10.1039/b922026g] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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17
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Dryza V, Metha GF. Threshold photoionization and density functional theory studies of bimetallic-carbide nanocrystals and fragments: Ta3ZrC(y) (y = 0-4). J Chem Phys 2009; 130:244301. [PMID: 19566147 DOI: 10.1063/1.3154384] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Gas-phase bimetallic tantalum-zirconium-carbide clusters are generated using a constructed double ablation cluster source. The Ta(3)ZrC(y) (y = 0-4) clusters are examined by photoionization efficiency spectroscopy to extract experimental ionization energies (IEs). The IE trend for the Ta(3)ZrC(y) cluster series is reasonably similar to that of the Ta(4)C(y) cluster series [V. Dryza et al., J. Phys. Chem. A 109, 11180 (2005)], although the IE reductions upon carbon addition are greater for the former. Complementary density functional theory calculations are performed for the various isomers constructed by attaching carbon atoms to the different faces of the tetrahedral Ta(3)Zr cluster. The good agreement between the experimental IE trend and that calculated for these isomers support a 2x2x2 face centered cubic nanocrystal structure for Ta(4)ZrC(4) and nanocrystal fragment structures for the smaller clusters.
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Affiliation(s)
- V Dryza
- Department of Chemistry, The University of Adelaide, South Australia 5005, Australia
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18
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Addicoat MA, Metha GF. Excited states of Nb3N2 and Nb3C2: Density functional theory, CASSCF, and MRCI studies. J Chem Phys 2009; 130:164308. [DOI: 10.1063/1.3122542] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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19
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Gentleman AS, Addicoat MA, Dryza V, Gascooke JR, Buntine MA, Metha GF. Photoionization efficiency spectroscopy and density functional theory investigations of RhHo2On (n=0–2) clusters. J Chem Phys 2009; 130:164311. [DOI: 10.1063/1.3120442] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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20
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Dryza V, Gascooke JR, Buntine MA, Metha GF. Onset of carbon–carbon bonding in the Nb5Cy(y = 0–6) clusters: a threshold photo-ionisation and density functional theory study. Phys Chem Chem Phys 2009; 11:1060-8. [DOI: 10.1039/b813359j] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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21
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Ticknor BW, Bandyopadhyay B, Duncan MA. Photodissociation of Noble Metal-Doped Carbon Clusters. J Phys Chem A 2008; 112:12355-66. [DOI: 10.1021/jp807867r] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- B. W. Ticknor
- Department of Chemistry, University of Georgia, Athens, Georgia 30602-2556
| | - B. Bandyopadhyay
- Department of Chemistry, University of Georgia, Athens, Georgia 30602-2556
| | - M. A. Duncan
- Department of Chemistry, University of Georgia, Athens, Georgia 30602-2556
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22
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Wang B, Zhai HJ, Huang X, Wang LS. On the Electronic Structure and Chemical Bonding in the Tantalum Trimer Cluster. J Phys Chem A 2008; 112:10962-7. [DOI: 10.1021/jp806166h] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bin Wang
- Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, P. R. China, State Key Laboratory of Structural Chemistry, Fuzhou, Fujian 350002, P. R. China, Department of Physics, Washington State University, 2710 University Drive, Richland, Washington 99354, and Chemical & Materials Sciences Division, Pacific Northwest National Laboratory, MS K8-88, Post Office Box 999, Richland, Washington 99352
| | - Hua-Jin Zhai
- Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, P. R. China, State Key Laboratory of Structural Chemistry, Fuzhou, Fujian 350002, P. R. China, Department of Physics, Washington State University, 2710 University Drive, Richland, Washington 99354, and Chemical & Materials Sciences Division, Pacific Northwest National Laboratory, MS K8-88, Post Office Box 999, Richland, Washington 99352
| | - Xin Huang
- Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, P. R. China, State Key Laboratory of Structural Chemistry, Fuzhou, Fujian 350002, P. R. China, Department of Physics, Washington State University, 2710 University Drive, Richland, Washington 99354, and Chemical & Materials Sciences Division, Pacific Northwest National Laboratory, MS K8-88, Post Office Box 999, Richland, Washington 99352
| | - Lai-Sheng Wang
- Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, P. R. China, State Key Laboratory of Structural Chemistry, Fuzhou, Fujian 350002, P. R. China, Department of Physics, Washington State University, 2710 University Drive, Richland, Washington 99354, and Chemical & Materials Sciences Division, Pacific Northwest National Laboratory, MS K8-88, Post Office Box 999, Richland, Washington 99352
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23
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Pan Y, Zhang L, Guo H, Qi F. Dissociative Photoionization Mechanism of 1,8-Dihydroxyanthraquinone: An Experimental and Theoretical Study. J Phys Chem A 2008; 112:10977-84. [DOI: 10.1021/jp806171h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yang Pan
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Lidong Zhang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Huijun Guo
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Fei Qi
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
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24
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Dryza V, Addicoat MA, Gascooke JR, Buntine MA, Metha GF. Threshold Photoionization and Density Functional Theory Studies of the Niobium Carbide Clusters Nb3Cn (n = 1−4) and Nb4Cn (n = 1−6). J Phys Chem A 2008; 112:5582-92. [DOI: 10.1021/jp800691s] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Viktoras Dryza
- Department of Chemistry, The University of Adelaide, South Australia 5005, Australia
| | - Matthew A. Addicoat
- Department of Chemistry, The University of Adelaide, South Australia 5005, Australia
| | - Jason R. Gascooke
- Department of Chemistry, The University of Adelaide, South Australia 5005, Australia
| | - Mark. A. Buntine
- Department of Chemistry, The University of Adelaide, South Australia 5005, Australia
| | - Gregory F. Metha
- Department of Chemistry, The University of Adelaide, South Australia 5005, Australia
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Addicoat MA, Metha GF. Computational Study of CO Reactivity with Nb3X Heteronuclear Clusters. Aust J Chem 2008. [DOI: 10.1071/ch08269] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Density functional calculations were performed to determine the equilibrium structures, ionization potentials, and electron affinities of Nb3X clusters (X = Na, Al, Sc, Sr, Y, Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd). Pseudo-tetrahedral geometries were preferred for all Nb3X clusters except Nb3Cd. The equilibrium structures and binding energies of the associatively and dissociatively bound products of the Nb3X + CO reaction were calculated at the same level of theory. All clusters were found to thermodynamically dissociate CO. Only Nb3Al and Nb3Cd reduced the enthalpy of dissociation relative to Nb4, whereas all other heteroatoms increased it.
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