1
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Rojas-González FE, Castillo-Quevedo C, Rodríguez-Kessler PL, Jimenez-Halla JOC, Vásquez-Espinal A, Eithiraj RD, Cortez-Valadez M, Cabellos JL. Exploration of Free Energy Surface of the Au 10 Nanocluster at Finite Temperature. Molecules 2024; 29:3374. [PMID: 39064952 PMCID: PMC11279810 DOI: 10.3390/molecules29143374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2024] [Revised: 07/08/2024] [Accepted: 07/15/2024] [Indexed: 07/28/2024] Open
Abstract
The first step in comprehending the properties of Au10 clusters is understanding the lowest energy structure at low and high temperatures. Functional materials operate at finite temperatures; however, energy computations employing density functional theory (DFT) methodology are typically carried out at zero temperature, leaving many properties unexplored. This study explored the potential and free energy surface of the neutral Au10 nanocluster at a finite temperature, employing a genetic algorithm coupled with DFT and nanothermodynamics. Furthermore, we computed the thermal population and infrared Boltzmann spectrum at a finite temperature and compared it with the validated experimental data. Moreover, we performed the chemical bonding analysis using the quantum theory of atoms in molecules (QTAIM) approach and the adaptive natural density partitioning method (AdNDP) to shed light on the bonding of Au atoms in the low-energy structures. In the calculations, we take into consideration the relativistic effects through the zero-order regular approximation (ZORA), the dispersion through Grimme's dispersion with Becke-Johnson damping (D3BJ), and we employed nanothermodynamics to consider temperature contributions. Small Au clusters prefer the planar shape, and the transition from 2D to 3D could take place at atomic clusters consisting of ten atoms, which could be affected by temperature, relativistic effects, and dispersion. We analyzed the energetic ordering of structures calculated using DFT with ZORA and single-point energy calculation employing the DLPNO-CCSD(T) methodology. Our findings indicate that the planar lowest energy structure computed with DFT is not the lowest energy structure computed at the DLPN0-CCSD(T) level of theory. The computed thermal population indicates that the 2D elongated hexagon configuration strongly dominates at a temperature range of 50-800 K. Based on the thermal population, at a temperature of 100 K, the computed IR Boltzmann spectrum agrees with the experimental IR spectrum. The chemical bonding analysis on the lowest energy structure indicates that the cluster bond is due only to the electrons of the 6 s orbital, and the Au d orbitals do not participate in the bonding of this system.
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Affiliation(s)
| | - César Castillo-Quevedo
- Departamento de Fundamentos del Conocimiento, Centro Universitario del Norte, Universidad de Guadalajara, Carretera Federal No. 23, km. 191, Colotlán 46200, Jalisco, Mexico;
| | | | - José Oscar Carlos Jimenez-Halla
- Departamento de Química, División de Ciencias Exactas y Naturales, Universidad de Guanajuato, Noria Alta s/n, Guanajuato 36050, Guanajuato, Mexico;
| | - Alejandro Vásquez-Espinal
- Química y Farmacia, Facultad de Ciencias de la Salud, Universidad Arturo Prat. Casilla 121, Iquique 1100000, Chile;
| | | | - Manuel Cortez-Valadez
- CONAHCYT-Departamento de Investigación en Física, Universidad de Sonora, Apdo. Postal 5-88, Hermosillo 83190, Sonora, Mexico;
| | - José Luis Cabellos
- Coordinación de Investigación y Desarrollo Tecnológico, Universidad Politécnica de Tapachula, Carretera Tapachula a Puerto Madero km. 24, Tapachula 30830, Chiapas, Mexico
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2
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Miyajima K, Nagata T, Mafuné F, Ichino T, Maeda S, Yoshinaga T, Miura M, Hayashi T. Size-dependent reactivity of Rh cationic clusters to reduce NO by CO in the gas phase at high temperatures. Phys Chem Chem Phys 2024; 26:13131-13139. [PMID: 38629236 DOI: 10.1039/d3cp05862j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
The reactivity of the reduction of NO pre-adsorbed on Rh2-9+ clusters by CO was investigated using a combination of an alternate on-off gas injection method and thermal desorption spectrometry. The reduction of RhnNxOy+ clusters by CO was evaluated by varying the CO concentration at T = 903 K. Among the RhnNxOx+ clusters, the Rh3N2O2+ cluster exhibited the highest reduction activity, whereas the other clusters, Rh2,4-9NxOx+, showed lower reactivity. Density functional theory (DFT) calculations for Rh3+ and Rh6+ revealed that the rate-determining step for NO reduction in the presence of CO was NO bond dissociation through the kinetics analysis using the RRKM theory. The reduction of Rh3N2O2+ is kinetically preferable to that of Rh6N2O2+. The DFT results were in qualitative agreement with the experimental results.
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Affiliation(s)
- Ken Miyajima
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, Komaba, Meguro-ku, Tokyo 153-8902, Japan.
| | - Toshiaki Nagata
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, Komaba, Meguro-ku, Tokyo 153-8902, Japan.
| | - Fumitaka Mafuné
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, Komaba, Meguro-ku, Tokyo 153-8902, Japan.
| | - Tomoya Ichino
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, N21-W10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan
| | - Satoshi Maeda
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, N21-W10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan
- Department of Chemistry, Faculty of Science, Hokkaido University, N10-W8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| | - Taizo Yoshinaga
- Advanced Material Engineering Division, Toyota Motor Corporation, 1200, Mishuku, Susono, Shizuoka 410-1193, Japan
| | - Masahide Miura
- Advanced Material Engineering Division, Toyota Motor Corporation, 1200, Mishuku, Susono, Shizuoka 410-1193, Japan
| | - Takahiro Hayashi
- Advanced Material Engineering Division, Toyota Motor Corporation, 1200, Mishuku, Susono, Shizuoka 410-1193, Japan
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3
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Fielicke A. Probing the binding and activation of small molecules by gas-phase transition metal clusters via IR spectroscopy. Chem Soc Rev 2023. [PMID: 37162518 DOI: 10.1039/d2cs00104g] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Isolated transition metal clusters have been established as useful models for extended metal surfaces or deposited metal particles, to improve the understanding of their surface chemistry and of catalytic reactions. For this objective, an important milestone has been the development of experimental methods for the size-specific structural characterization of clusters and cluster complexes in the gas phase. This review focusses on the characterization of molecular ligands, their binding and activation by small transition metal clusters, using cluster-size specific infrared action spectroscopy. A comprehensive overview and a critical discussion of the experimental data available to date is provided, reaching from the initial results obtained using line-tuneable CO2 lasers to present-day studies applying infrared free electron lasers as well as other intense and broadly tuneable IR laser sources.
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Affiliation(s)
- André Fielicke
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, 14195 Berlin, Germany.
- Institut für Optik und Atomare Physik, Technische Universität Berlin, 10623 Berlin, Germany
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4
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Meizyte G, Pearcy PAJ, Watson PD, Brewer EI, Green AE, Doll M, Duda OA, Mackenzie SR. An Infrared Study of Gas-Phase Metal Nitrosyl Ion-Molecule Complexes. J Phys Chem A 2022; 126:9414-9422. [PMID: 36480929 PMCID: PMC9791661 DOI: 10.1021/acs.jpca.2c07228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We present a combined experimental and quantum chemical study of gas-phase group 9 metal nitrosyl complexes, M(NO)n+ (M = Co, Rh, Ir). Experimental infrared photodissociation spectra of mass-selected ion-molecule complexes are presented in the region 1600 cm-1 to 2000 cm-1 which includes the NO stretch. These are interpreted by comparison with the simulated spectra of energetically low-lying structures calculated using density functional theory. A mix of linear and nonlinear ligand binding is observed, often within the same complex, and clear evidence of coordination shell closing is observed at n = 4 for Co(NO)n+ and Ir(NO)n+. Calculations of Rh(NO)n+ complexes suggest additional low-lying five-coordinate structures. In all cases, once a second coordination shell is occupied, new spectral features appear which are assigned to (NO)2 dimer moieties. Further evidence of such motifs comes from differences in the spectra recorded in the dissociation channels corresponding to single and double ligand loss.
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5
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Yamaguchi M, Zhang Y, Lushchikova OV, Bakker JM, Mafuné F. NO Bond Cleavage on Gas-Phase Ir n+ Clusters Investigated by Infrared Multiple Photon Dissociation Spectroscopy. J Phys Chem A 2022; 126:6668-6677. [PMID: 36126291 DOI: 10.1021/acs.jpca.2c05029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The adsorption forms of NO on Irn+ (n = 3-6) clusters were investigated using infrared multiple photon dissociation (IRMPD) spectroscopy and density functional theory (DFT) calculations. Spectral features indicative both for molecular NO adsorption (the NO stretching vibration in the 1800-1900 cm-1 range) and for dissociative NO adsorption (the terminal Ir-O vibration around 940 cm-1) were observed, elucidating the co-existence of molecular and dissociative adsorption of NO. In all calculated structures for molecular adsorption, NO is adsorbed via the N atom on on-top sites. For dissociative adsorption, the O atom adsorbs exclusively on on-top sites (μ1) of the clusters, whereas the N atom is found on either a bridge (μ2) or a hollow (μ3) site. For Ir5+ and Ir6+, the N atom is also found on the on-top sites. The observed propensity for NO dissociation on Irn+ (n = 3-6) is higher than that for Rh6+, which can be explained by the higher metal-oxygen bond strengths for iridium.
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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
| | - Olga V Lushchikova
- Radboud University, Institute for Molecules and Materials, FELIX Laboratory, Toernooiveld 7, 6525 ED Nijmegen, the Netherlands
| | - Joost M Bakker
- Radboud University, Institute for Molecules and Materials, FELIX Laboratory, Toernooiveld 7, 6525 ED Nijmegen, the 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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6
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Vekeman J, Wang Q, Deraet X, Bazin D, De Proft F, Guesmi H, Tielens F. Synergistic Effects in the Activity of Nano-Transition-Metal Clusters Pt12M (M = Ir, Ru or Rh) for NO Dissociation. Chemphyschem 2022; 23:e202200374. [PMID: 35686671 DOI: 10.1002/cphc.202200374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Indexed: 11/10/2022]
Abstract
The dissociation of environmentally hazardous NO through dissociative adsorption on metallic clusters supported by oxides, is receiving growing attention. Building on previous research on monometallic M 13 clusters [J. Phys. Chem. C, 2019, 123(33), 20314-20318], this work considers bimetallic Pt 12 M (M = Rh, Ru or Ir) clusters. The adsorption energy and activation energy of NO dissociation on the clusters have been calculated in vacuum using Koh,-Sham DFT, while their trends were rationalized using reactivity indices such as molecular electrostatic potential and global Fermi softness. The results shown that doping of the Pt clusters lowered the adsorption energy as well as the activation energy for NO dissociation. Furthermore, reactivity indices were calculated as a first estimate of the performance of the clusters in realistic amorphous silica pores (MCM-41) through ab initio molecular dynamics simulations.
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Affiliation(s)
- Jelle Vekeman
- Ghent University: Universiteit Gent, Center for Molecular Modeling (CMM), Pleinlaan 2, BELGIUM
| | - Qing Wang
- Universite de Montpellier, ICGM: Institut Charles Gerhardt de Montpellier, FRANCE
| | - Xavier Deraet
- Vrije Universiteit Brussel, Eenheid Algemene Chemie, BELGIUM
| | - Dominique Bazin
- Université Paris-Sud: Universite Paris-Saclay, Institut de Chimie Physique, FRANCE
| | - Frank De Proft
- Vrije Universiteit Brussel, Eenheid Algemene Chemie, BELGIUM
| | - Hazar Guesmi
- Universite de Montpellier, ICGM: Institut Charles Gerhardt de Montpellier, FRANCE
| | - Frederik Tielens
- Vrije Universiteit Brussel Faculteit Wetenschappen en Bio-ingenieurswetenschappen, ALGC, Pleinlaan 2, 1050, Elsene, BELGIUM
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7
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Bakker JM, Mafuné F. Zooming in on the initial steps of catalytic NO reduction using metal clusters. Phys Chem Chem Phys 2022; 24:7595-7610. [PMID: 35297928 PMCID: PMC8966623 DOI: 10.1039/d1cp05760j] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The study of reactions relevant to heterogeneous catalysis on the surface of well-defined metal clusters with full control over the number of consituent atoms and elemental composition can lead to a detailed insight into the interactions between metal and reactants. We here review experimental and theoretical studies involving the adsorption of NO molecules on mostly rhodium-based clusters under near-thermal conditions in a molecular beam. We show how IR spectrosopic characterization can give information on the binding nature of NO to the clusters for at least the first three NO molecules. The complementary technique of thermal desorption spectrometry reveals at what temperatures multiple NO molecules on the cluster surface desorb or combine to form rhodium oxides followed by N2 elimination. Variation of the cluster elemental composition can be a powerful method to identify how the propensity of the critical first step of NO dissociation can be increased. The testing of such concepts with atomic detail can be of great help in guiding the choices in rational catalyst design. The study of reactions relevant to heterogeneous catalysis on metal clusters with full control over the number of constituent atoms and elemental composition can lead to a detailed insight into the interactions governing catalytic functionality.![]()
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Affiliation(s)
- Joost M Bakker
- Radboud University, Institute for Molecules and Materials, FELIX Laboratory, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands.
| | - 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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8
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Zhang Y, Yamaguchi M, Kawada K, Kudoh S, Lushchikova OV, Bakker JM, Mafuné F. Adsorption Forms of NO on Iridium-Doped Rhodium Clusters in the Gas Phase Revealed by Infrared Multiple Photon Dissociation Spectroscopy. J Phys Chem A 2022; 126:36-43. [PMID: 34978823 DOI: 10.1021/acs.jpca.1c08628] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The adsorption of an NO molecule on a cationic iridium-doped rhodium cluster, Rh5Ir+, was investigated by infrared multiple photon dissociation spectroscopy (IRMPD) of Rh5IrNO+·Arp complexes in the 300-2000 cm-1 spectral range, where the Ar atoms acted as a messenger signaling IR absorption. Complementary density functional theory (DFT) calculations predicted two near-isoenergetic structures as the putative global minimum: one with NO adsorbed in molecular form in the on-top configuration on the Ir atom in Rh5Ir+, and one where NO is dissociated with the O atom bound to the Ir atom in the on-top configuration and the N atom on a hollow site formed by three Rh atoms. A comparison between the experimental IRMPD spectrum of Rh5IrNO+ and calculated spectra indicated that NO mainly adsorbs molecularly on Rh5Ir+, but evidence was also found for structures with dissociatively adsorbed NO. The estimated fraction of Rh5IrNO+ structures with dissociatively adsorbed NO is approximately 10%, which was higher than that found for Rh6+, but lower than that for Ir6+. The DFT calculations indicated the existence of an energy barrier in the NO dissociation pathway that is exothermic with respect to the reactants, which was considered to prevent NO from dissociating readily on Rh5Ir+. The height of the barrier is lower than that for NO dissociation over Rh6+, which is attributed to the higher binding energy of atomic O to the Ir atom in Rh5Ir+ than to a Rh atom in Rh6+.
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Affiliation(s)
- Yufei Zhang
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, Komaba, Meguro-ku, Tokyo 153-8902, Japan
| | - Masato Yamaguchi
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, Komaba, Meguro-ku, Tokyo 153-8902, Japan
| | - Kimihiro Kawada
- 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
| | - Olga V Lushchikova
- Radboud University, Institute for Molecules and Materials, FELIX laboratory, Toernooiveld 7, 6525 ED Nijmegen, Netherlands
| | - Joost M Bakker
- Radboud University, Institute for Molecules and Materials, FELIX laboratory, Toernooiveld 7, 6525 ED Nijmegen, Netherlands
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9
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Zhao YX, Zhao XG, Yang Y, Ruan M, He SG. Rhodium chemistry: A gas phase cluster study. J Chem Phys 2021; 154:180901. [PMID: 34241019 DOI: 10.1063/5.0046529] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Due to the extraordinary catalytic activity in redox reactions, the noble metal, rhodium, has substantial industrial and laboratory applications in the production of value-added chemicals, synthesis of biomedicine, removal of automotive exhaust gas, and so on. The main drawback of rhodium catalysts is its high-cost, so it is of great importance to maximize the atomic efficiency of the precious metal by recognizing the structure-activity relationship of catalytically active sites and clarifying the root cause of the exceptional performance. This Perspective concerns the significant progress on the fundamental understanding of rhodium chemistry at a strictly molecular level by the joint experimental and computational study of the reactivity of isolated Rh-based gas phase clusters that can serve as ideal models for the active sites of condensed-phase catalysts. The substrates cover the important organic and inorganic molecules including CH4, CO, NO, N2, and H2. The electronic origin for the reactivity evolution of bare Rhx q clusters as a function of size is revealed. The doping effect and support effect as well as the synergistic effect among heteroatoms on the reactivity and product selectivity of Rh-containing species are discussed. The ingenious employment of diverse experimental techniques to assist the Rh1- and Rh2-doped clusters in catalyzing the challenging endothermic reactions is also emphasized. It turns out that the chemical behavior of Rh identified from the gas phase cluster study parallels the performance of condensed-phase rhodium catalysts. The mechanistic aspects derived from Rh-based cluster systems may provide new clues for the design of better performing rhodium catalysts including the single Rh atom catalysts.
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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, People's Republic of China
| | - Xi-Guan Zhao
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Yuan Yang
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Man Ruan
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Sheng-Gui He
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
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10
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Exploration of Free Energy Surface and Thermal Effects on Relative Population and Infrared Spectrum of the Be 6B 11- Flux-Ional Cluster. MATERIALS 2020; 14:ma14010112. [PMID: 33383889 PMCID: PMC7796227 DOI: 10.3390/ma14010112] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 12/23/2020] [Accepted: 12/24/2020] [Indexed: 02/06/2023]
Abstract
The starting point to understanding cluster properties is the putative global minimum and all the nearby local energy minima; however, locating them is computationally expensive and difficult. The relative populations and spectroscopic properties that are a function of temperature can be approximately computed by employing statistical thermodynamics. Here, we investigate entropy-driven isomers distribution on Be6B11− clusters and the effect of temperature on their infrared spectroscopy and relative populations. We identify the vibration modes possessed by the cluster that significantly contribute to the zero-point energy. A couple of steps are considered for computing the temperature-dependent relative population: First, using a genetic algorithm coupled to density functional theory, we performed an extensive and systematic exploration of the potential/free energy surface of Be6B11− clusters to locate the putative global minimum and elucidate the low-energy structures. Second, the relative populations’ temperature effects are determined by considering the thermodynamic properties and Boltzmann factors. The temperature-dependent relative populations show that the entropies and temperature are essential for determining the global minimum. We compute the temperature-dependent total infrared spectra employing the Boltzmann factor weighted sums of each isomer’s infrared spectrum and find that at finite temperature, the total infrared spectrum is composed of an admixture of infrared spectra that corresponds to the spectra of the lowest-energy structure and its isomers located at higher energies. The methodology and results describe the thermal effects in the relative population and the infrared spectra.
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11
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Koyasu K, Tomihara R, Nagata T, Wu JWJ, Nakano M, Ohshimo K, Misaizu F, Tsukuda T. Sequential growth of iridium cluster anions based on simple cubic packing. Phys Chem Chem Phys 2020; 22:17842-17846. [DOI: 10.1039/d0cp03122d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ion mobility measurements and DFT calculations revealed cubic growth of Irn− in contrast to fcc structures in bulk and nanoparticles.
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Affiliation(s)
- Kiichirou Koyasu
- Department of Chemistry, Graduate School of Science
- The University of Tokyo, 7-3-1 Hongo
- Tokyo 113-0033
- Japan
- Elements Strategy Initiative for Catalysts & Batteries (ESICB)
| | - Ryohei Tomihara
- Department of Chemistry, Graduate School of Science
- The University of Tokyo, 7-3-1 Hongo
- Tokyo 113-0033
- Japan
| | - Toshiaki Nagata
- Department of Chemistry
- Graduate School of Science
- Tohoku University
- Sendai 980-8578
- Japan
| | - Jenna W. J. Wu
- Department of Chemistry
- Graduate School of Science
- Tohoku University
- Sendai 980-8578
- Japan
| | - Motoyoshi Nakano
- Department of Chemistry
- Graduate School of Science
- Tohoku University
- Sendai 980-8578
- Japan
| | - Keijiro Ohshimo
- Department of Chemistry
- Graduate School of Science
- Tohoku University
- Sendai 980-8578
- Japan
| | - Fuminori Misaizu
- Department of Chemistry
- Graduate School of Science
- Tohoku University
- Sendai 980-8578
- Japan
| | - Tatsuya Tsukuda
- Department of Chemistry, Graduate School of Science
- The University of Tokyo, 7-3-1 Hongo
- Tokyo 113-0033
- Japan
- Elements Strategy Initiative for Catalysts & Batteries (ESICB)
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12
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A Systematic Study on Bond Activation Energies of NO, N 2
, and O 2
on Hexamers of Eight Transition Metals. ChemCatChem 2019. [DOI: 10.1002/cctc.201801595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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13
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Cunningham EM, Gentleman AS, Beardsmore PW, Mackenzie SR. Structural isomers and low-lying electronic states of gas-phase M+(N2O)n (M = Co, Rh, Ir) ion–molecule complexes. Phys Chem Chem Phys 2019; 21:13959-13967. [DOI: 10.1039/c8cp05995k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The structures of gas-phase group nine cation–nitrous oxide metal–ligand complexes, M+(N2O)n (M = Co, Rh, Ir; n = 2–7) have been determined by a combination of infrared photodissociation spectroscopy and density functional theory.
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Affiliation(s)
- Ethan M. Cunningham
- Department of Chemistry
- University of Oxford
- Physical and Theoretical Chemistry Laboratory
- Oxford
- UK
| | - Alexander S. Gentleman
- Department of Chemistry
- University of Oxford
- Physical and Theoretical Chemistry Laboratory
- Oxford
- UK
| | - Peter W. Beardsmore
- Department of Chemistry
- University of Oxford
- Physical and Theoretical Chemistry Laboratory
- Oxford
- UK
| | - Stuart R. Mackenzie
- Department of Chemistry
- University of Oxford
- Physical and Theoretical Chemistry Laboratory
- Oxford
- UK
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14
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Dutta A, Mondal P. A density functional study on the electronic structure, nature of bonding and reactivity of NO adsorbing Rh0/±n ( n = 2–8) clusters. NEW J CHEM 2018. [DOI: 10.1039/c7nj04166g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Systematic investigations on lowest energy NO adsorbing neutral and ionic Rhn (n = 2–8) clusters in the gas phase are executed with an all electron relativistic method using density functional theory (DFT) within the generalized gradient approximation.
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Affiliation(s)
- Abhijit Dutta
- Department of Chemistry, Assam University
- Silchar 788011
- India
| | - Paritosh Mondal
- Department of Chemistry, Assam University
- Silchar 788011
- India
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15
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Density Functional Study on Structure and Bonding Nature of CO Adsorbed Rh
n
+/−
(n = 2–8) Clusters. J CLUST SCI 2017. [DOI: 10.1007/s10876-017-1241-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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16
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Hirabayashi S, Ichihashi M. Effects of Second-Metal (Al, V, Co) Doping on the NO Reactivity of Small Rhodium Cluster Cations. J Phys Chem A 2017; 121:2545-2551. [PMID: 28319381 DOI: 10.1021/acs.jpca.6b11613] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Reactions of pure and doped rhodium cluster cations, RhnX+ (n = 2-6; X = Al, V, Co, Rh), with NO molecules were investigated at near-thermal energy using a guided ion beam tandem mass spectrometer. We found that the doping with Al and V increases the total reaction cross section mostly. Under single-collision conditions, Rh2X+ reacts with NO to produce Rh2N+ with release of metal monoxide, XO, whereas RhnX+ (n = 3-6) adsorb NO. For the specific clusters RhnAl+ (n = 3 and 4) and RhnV+ (n = 4-6), the NO adsorption is often accompanied by the release of one Rh atom. In addition, we examined the reactions of Rh5X+ (X = Al, V, Co, Rh) with NO under multiple-collision conditions and observed the cluster dioxide formation and the N2 release, i.e., NO decomposition. Particularly, the V-doping is most effective for the NO decomposition. One possible explanation for the present results is that the formation of a stable dopant metal-oxygen bond directly leads to the increase of NO dissociative adsorption energy and the reduction of the energy barrier between the molecular and dissociative adsorption, thereby encouraging the NO decomposition on the small RhnX+ clusters studied.
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Affiliation(s)
- Shinichi Hirabayashi
- East Tokyo Laboratory, Genesis Research Institute, Inc. , 717-86 Futamata, Ichikawa, Chiba 272-0001, Japan
| | - 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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Mafuné F, Tawaraya Y, Kudoh S. Reactivity Control of Rhodium Cluster Ions by Alloying with Tantalum Atoms. J Phys Chem A 2016; 120:861-7. [DOI: 10.1021/acs.jpca.5b11898] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fumitaka Mafuné
- Department of Basic Science,
School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
| | - Yuki Tawaraya
- Department of Basic Science,
School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
| | - Satoshi Kudoh
- Department of Basic Science,
School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
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18
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Yang HQ, Fu HQ, Su BF, Xiang B, Xu QQ, Hu CW. Theoretical Study on the Catalytic Reduction Mechanism of NO by CO on Tetrahedral Rh4 Subnanocluster. J Phys Chem A 2015; 119:11548-64. [DOI: 10.1021/acs.jpca.5b07713] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hua-Qing Yang
- College of Chemical Engineering and ‡Key Laboratory of Green Chemistry
and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610065, People’s Republic of China
| | - Hong-Quan Fu
- College of Chemical Engineering and ‡Key Laboratory of Green Chemistry
and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610065, People’s Republic of China
| | - Ben-Fang Su
- College of Chemical Engineering and ‡Key Laboratory of Green Chemistry
and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610065, People’s Republic of China
| | - Bo Xiang
- College of Chemical Engineering and ‡Key Laboratory of Green Chemistry
and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610065, People’s Republic of China
| | - Qian-Qian Xu
- College of Chemical Engineering and ‡Key Laboratory of Green Chemistry
and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610065, People’s Republic of China
| | - Chang-Wei Hu
- College of Chemical Engineering and ‡Key Laboratory of Green Chemistry
and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610065, People’s Republic of China
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19
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20
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Tawaraya Y, Kudoh S, Miyajima K, Mafuné F. Thermal Desorption and Reaction of NO Adsorbed on Rhodium Cluster Ions Studied by Thermal Desorption Spectroscopy. J Phys Chem A 2015; 119:8461-8. [DOI: 10.1021/acs.jpca.5b04224] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yuki Tawaraya
- Department of Basic Science,
School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
| | - Satoshi Kudoh
- Department of Basic Science,
School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
| | - Ken Miyajima
- 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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21
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Parry IS, Kartouzian A, Hamilton SM, Balaj OP, Beyer MK, Mackenzie SR. Chemical Reactivity on Gas-Phase Metal Clusters Driven by Blackbody Infrared Radiation. Angew Chem Int Ed Engl 2014; 54:1357-60. [DOI: 10.1002/anie.201409483] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Revised: 11/05/2014] [Indexed: 12/27/2022]
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22
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Parry IS, Kartouzian A, Hamilton SM, Balaj OP, Beyer MK, Mackenzie SR. Durch Schwarzkörperstrahlung angetriebene chemische Reaktivität auf Metallclustern in der Gasphase. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201409483] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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23
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Mora MA, Mora-Ramirez MA. Structural and electronic study of neutral, positive, and negative small rhodium clusters [Rh(n), Rh(n)(+), Rh(n)(-) ; n = 10-13]. J Mol Model 2014; 20:2299. [PMID: 24944092 DOI: 10.1007/s00894-014-2299-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 05/06/2014] [Indexed: 11/29/2022]
Abstract
We have carried out a systematic study for the determination of the structure and the fundamental state of neutral and ionic small rhodium clusters [Rhn, Rhn(+), Rhn(-); n = 10-13] using ab initio Hartree-Fock methods with a LANL2DZ basis set. A range of spin multiplicities is investigated for each cluster. We present the bond lengths, angles, and geometric configuration adopted by the clusters in its minimum energy conformation showing the differences when the clusters have different number of unpaired electrons. Also we report the vertical ionization potential and the adiabatic one calculated by the Koopmans' theorem.
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Affiliation(s)
- M A Mora
- Departamento de Química, Universidad Autónoma Metropolitana, campus Iztapalapa, Av. San Rafael Atlixco 186, México, 09340, D. F, México,
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24
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Kim Y, Choi S, Kim WY. Efficient Basin-Hopping Sampling of Reaction Intermediates through Molecular Fragmentation and Graph Theory. J Chem Theory Comput 2014; 10:2419-26. [DOI: 10.1021/ct500136x] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Yeonjoon Kim
- Department
of Chemistry, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Korea
| | - Sunghwan Choi
- Department
of Chemistry, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Korea
| | - Woo Youn Kim
- Department
of Chemistry, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Korea
- KAIST
Institute for NanoCentury, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Korea
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25
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Lecours MJ, Chow WCT, Hopkins WS. Density Functional Theory Study of RhnS0,± and Rhn+10,± (n = 1–9). J Phys Chem A 2014; 118:4278-87. [PMID: 24784348 DOI: 10.1021/jp412457m] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Michael J. Lecours
- Department of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada
| | - W. C. Theodore Chow
- Department of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada
| | - W. Scott Hopkins
- Department of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada
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26
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Rondina GG, Da Silva JLF. Revised Basin-Hopping Monte Carlo Algorithm for Structure Optimization of Clusters and Nanoparticles. J Chem Inf Model 2013; 53:2282-98. [DOI: 10.1021/ci400224z] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Gustavo G. Rondina
- Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, 13560-970, São
Carlos, SP, Brazil
| | - Juarez L. F. Da Silva
- Instituto de Química de São Carlos, Universidade de São Paulo, Caixa Postal 780, 13560-970, São
Carlos, SP, Brazil
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27
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Parry IS, Kartouzian A, Hamilton SM, Balaj OP, Beyer MK, Mackenzie SR. Collisional Activation of N2O Decomposition and CO Oxidation Reactions on Isolated Rhodium Clusters. J Phys Chem A 2013; 117:8855-63. [DOI: 10.1021/jp405267p] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Imogen S. Parry
- Department
of Chemistry, University of Oxford, Physical and Theoretical Chemistry Laboratory, Oxford OX1 3QZ, United Kingdom
| | - Aras Kartouzian
- Department
of Chemistry, University of Oxford, Physical and Theoretical Chemistry Laboratory, Oxford OX1 3QZ, United Kingdom
| | - Suzanne M. Hamilton
- Department
of Chemistry, University of Oxford, Physical and Theoretical Chemistry Laboratory, Oxford OX1 3QZ, United Kingdom
| | - O. Petru Balaj
- Institut
für Physikalische Chemie, Christian-Albrechts-Universität zu Kiel, Olshausenstr. 40, 24098 Kiel, Germany
| | - Martin K. Beyer
- Institut
für Physikalische Chemie, Christian-Albrechts-Universität zu Kiel, Olshausenstr. 40, 24098 Kiel, Germany
| | - Stuart R. Mackenzie
- Department
of Chemistry, University of Oxford, Physical and Theoretical Chemistry Laboratory, Oxford OX1 3QZ, United Kingdom
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28
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Addicoat MA, Fukuoka S, Page AJ, Irle S. Stochastic structure determination for conformationally flexible heterogenous molecular clusters: application to ionic liquids. J Comput Chem 2013; 34:2591-600. [PMID: 24022891 DOI: 10.1002/jcc.23420] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Revised: 08/02/2013] [Accepted: 08/05/2013] [Indexed: 12/26/2022]
Abstract
We present a novel method that enables accurate and efficient computational determination of conformationally flexible clusters, "Kick(3)" This method uses stochastically generated structures in combination with fast quantum mechanical methods. We demonstrate the power of this method by elucidating the structure of ionic liquid (IL) ([xMIM(+)][NO3(-)])n clusters (x = E, B, D, n = 1-10,15). Dispersion-corrected, third-order self-consistent-charge density-functional tight-binding (DFTB3) is shown to be a computationally efficient, yet reliable approximation to density functional theory for predicting and understanding IL structure and stability. The presented approach, therefore, enables the accurate and efficient screening of ILs with high potential toward practical applications, without recourse to more expensive quantum chemical methods.
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Affiliation(s)
- Matthew A Addicoat
- Department of Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-4602, Japan
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29
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Electronic and Structural Properties of Neutral, Anionic, and Cationic Rh x Cu4−x (x = 0–4) Small Clusters: A DFT Study. J CLUST SCI 2013. [DOI: 10.1007/s10876-013-0550-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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31
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Romo-Ávila SL, Guirado-López RA. Adsorption of Nitric Oxide on Small Rhn± Clusters: Role of the Local Atomic Environment on the Dissociation of the N–O Bond. J Phys Chem A 2012; 116:1059-68. [DOI: 10.1021/jp208847r] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- S. L. Romo-Ávila
- Facultad de Ciencias, Universidad Autónoma de San Luis Potosí, Lateral Av. Salvador Nava s/n, 78290, San Luis Potosí, México
| | - R. A. Guirado-López
- Instituto de Física “Manuel Sandoval Vallarta”, Universidad Autónoma de San Luis Potośi, Alvaro Obregón 64, 78000, San Luis Potosí, México
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32
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Xie H, Ren M, Lei Q, Fang W. Nitric oxide adsorption and reduction reaction mechanism on the Rh7(+) cluster: a density functional theory study. J Phys Chem A 2011; 115:14203-8. [PMID: 22029266 DOI: 10.1021/jp2044652] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The transition metal rhodium has been proved the effective catalyst to convert from NO(x) to N(2.) In the present work, we are mainly focused on the NO adsorption and decomposition reaction mechanism on the surface of the Rh(7)(+) cluster, and the calculated results suggest that the reaction can proceed via three steps. First, the NO can adsorb on the surface of the Rh(7)(+) cluster; second, the NO decomposes to N and O atoms; finally, the N atom reacts with the second adsorbed NO and reduces to a N(2) molecule. The N-O bond breaks to yield N and O atoms in the second step, which is the rate-limiting step of the whole catalytic cycle. This step goes over a relatively high barrier (TS(12)) of 39.6 kcal/mol and is strongly driven by a large exothermicity of 55.1 kcal/mol during the formation of stable compound 3, accompanied by the N and O atoms dispersed on the different Rh atoms of the Rh(7)(+) cluster. In addition, the last step is very complex due to the different possibilities of reaction mechanism. On the basis of the calculations, in contrast to the reaction path II that generates N(2) from two nitrogen atoms coupling, the reaction path I for the formation of intermediate N(2)O is found to be energetically more favorable. Present work would provide some valuable fundamental insights into the behavior of the nitric oxide adsorption and reduction reaction mechanism on the Rh(7)(+) cluster.
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Affiliation(s)
- Hujun Xie
- Department of Applied Chemistry, Zhejiang Gongshang University, Hangzhou, China.
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CHEN JIAN, TAN KAI, LIN MENGHAI. THEORETICAL STUDY OF NITROGEN MONOXIDE ADSORPTION ON RHODIUM CLUSTERS AT DIFFERENT SITES. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2011. [DOI: 10.1142/s0219633608004040] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The adsorption of nitrogen monoxide NO with charged and neutral [Formula: see text] clusters at atop, bridge, and threefold hollow sites had been investigated by density functional theory calculations. The results showed that rhodium clusters had strong orbital interactions with NO and formed the complex [ Rh n NO ]-/0/+. The stretching vibrational frequencies of the N–O bonds changed with the different adsorption sites and clusters sizes. The interactions between rhodium clusters and NO molecular could be described through the donation and back-donation of their frontier orbitals. The more back donation from Rh to NO , the weaker the N–O bonds, exhibiting that the lengthening of the N–O bond length and the lowering of its vibrational frequency. In general, the donation and back-donation interactions followed the tendencies: anionic > neutral > cationic, big size > small size, threefold hollow site > bridge site > atop site.
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Affiliation(s)
- JIAN CHEN
- State Key Laboratory for Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - KAI TAN
- State Key Laboratory for Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - MENG-HAI LIN
- State Key Laboratory for Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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Torres MB, Aguilera-Granja F, Balbás LC, Vega A. Ab Initio Study of the Adsorption of NO on the Rh6+Cluster. J Phys Chem A 2011; 115:8350-60. [DOI: 10.1021/jp202511w] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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35
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Hamilton SM, Hopkins WS, Harding DJ, Walsh TR, Haertelt M, Kerpal C, Gruene P, Meijer G, Fielicke A, Mackenzie SR. Infrared-Induced Reactivity of N2O on Small Gas-Phase Rhodium Clusters. J Phys Chem A 2011; 115:2489-97. [DOI: 10.1021/jp201171p] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Suzanne M. Hamilton
- Department of Chemistry, Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QZ, U.K
| | - W. Scott Hopkins
- Department of Chemistry, Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QZ, U.K
| | - Dan J. Harding
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
| | - Tiffany R. Walsh
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL, U.K
- Centre for Scientific Computing, University of Warwick, Coventry, CV4 7AL, U.K
| | - Marko Haertelt
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
| | - Christian Kerpal
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
| | - Philipp Gruene
- 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
| | - Stuart R. Mackenzie
- Department of Chemistry, Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QZ, U.K
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36
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Wang H, Ko YJ, García LG, Sen P, Beltrán MR, Bowen KH. Joint photoelectron and theoretical study of (RhmCon)− (m = 1–5, n = 1–2) cluster anions and their neutral counterparts. Phys Chem Chem Phys 2011; 13:7685-91. [DOI: 10.1039/c0cp01674h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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37
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Harding DJ, Gruene P, Haertelt M, Meijer G, Fielicke A, Hamilton SM, Hopkins WS, Mackenzie SR, Neville SP, Walsh TR. Probing the structures of gas-phase rhodium cluster cations by far-infrared
spectroscopy. J Chem Phys 2010; 133:214304. [DOI: 10.1063/1.3509778] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- D. J. Harding
- Fritz-Haber-Institut der
Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin,
Germany
- Department of Chemistry, University of
Warwick, Coventry CV4 7AL, United Kingdom
| | - P. Gruene
- Fritz-Haber-Institut der
Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin,
Germany
| | - M. Haertelt
- Fritz-Haber-Institut der
Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin,
Germany
| | - G. Meijer
- Fritz-Haber-Institut der
Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin,
Germany
| | - A. Fielicke
- Fritz-Haber-Institut der
Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin,
Germany
| | - S. M. Hamilton
- Department of Chemistry, Physical and Theoretical Chemistry
Laboratory, University of Oxford, South Parks Road, Oxford OX1
3QZ, United Kingdom
| | - W. S. Hopkins
- Department of Chemistry, Physical and Theoretical Chemistry
Laboratory, University of Oxford, South Parks Road, Oxford OX1
3QZ, United Kingdom
| | - S. R. Mackenzie
- Department of Chemistry, Physical and Theoretical Chemistry
Laboratory, University of Oxford, South Parks Road, Oxford OX1
3QZ, United Kingdom
| | - S. P. Neville
- Department of Chemistry, University of
Warwick, Coventry CV4 7AL, United Kingdom
| | - T. R. Walsh
- Department of Chemistry, University of
Warwick, Coventry CV4 7AL, United Kingdom
- Centre for Scientific Computing, University of
Warwick, Coventry CV4 7AL, United Kingdom
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38
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Fielicke A, Gruene P, Haertelt M, Harding DJ, Meijer G. Infrared Spectroscopy and Binding Geometries of Oxygen Atoms Bound to Cationic Tantalum Clusters. J Phys Chem A 2010; 114:9755-61. [DOI: 10.1021/jp102084n] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- André Fielicke
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
| | - Philipp Gruene
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
| | - Marko Haertelt
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
| | - Dan J. Harding
- 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
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Harding DJ, Walsh TR, Hamilton SM, Hopkins WS, Mackenzie SR, Gruene P, Haertelt M, Meijer G, Fielicke A. Communications: The structure of Rh8+ in the gas phase. J Chem Phys 2010; 132:011101. [DOI: 10.1063/1.3285266] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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40
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Grybos R, Benco L, Bučko T, Hafner J. Interaction of NO molecules with Pd clusters:Ab initiodensity-functional study. J Comput Chem 2009; 30:1910-22. [DOI: 10.1002/jcc.21174] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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41
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Harding D, Mackenzie S, Walsh T. Density functional theory calculations of vibrational spectra of rhodium oxide clusters. Chem Phys Lett 2009. [DOI: 10.1016/j.cplett.2008.12.053] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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42
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Addicoat MA, Metha GF. Kick: constraining a stochastic search procedure with molecular fragments. J Comput Chem 2008; 30:57-64. [PMID: 18506695 DOI: 10.1002/jcc.21026] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
An extension of the Kick program developed by Bera et al. (J Phys Chem A 2006, 110, 4287) is described in which chemically sensible molecular fragments are used in an automated stochastic search algorithm. This results in a vastly reduced region of the potential energy surface which can be explored very quickly. We present use of this modified algorithm to the search for low-lying isomers, and we present candidates for the global energy minimum, for a range of chemical systems. We highlight the usefulness of this procedure for exploring reactions of molecules with transition metal clusters and to the microsolvation of a small dipeptide.
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Affiliation(s)
- Matthew A Addicoat
- Department of Chemistry, University of Adelaide, Adelaide, South Australia 5005
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Harding DJ, Davies RDL, Mackenzie SR, Walsh TR. Oxides of small Rhodium clusters: Theoretical investigation of experimental reactivities. J Chem Phys 2008; 129:124304. [DOI: 10.1063/1.2981810] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ghosh P, Pushpa R, de Gironcoli S, Narasimhan S. Interplay between bonding and magnetism in the binding of NO to Rh clusters. J Chem Phys 2008; 128:194708. [DOI: 10.1063/1.2913242] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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45
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Grönbeck H, Thomas JM. Structural and electronic properties of a trimetallic nanoparticle catalyst: Ru5PtSn. Chem Phys Lett 2007. [DOI: 10.1016/j.cplett.2007.06.096] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Grönbeck H, Hellman A, Gavrin A. Structural, Energetic, and Vibrational Properties of NOx Adsorption on Agn, n = 1−8. J Phys Chem A 2007; 111:6062-7. [PMID: 17579372 DOI: 10.1021/jp071117d] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The density functional theory is used to explore structural, electronic, and vibrational properties of NO, NO(2), and NO(3) adsorption on small silver clusters, Ag(n), with n =1-8. Generally, NO adsorbs in a top configuration, whereas NO(2) and NO(3) are adsorbed in bridge configuration. NO2 and NO3 introduce pronounced structural relaxations in the clusters. In particular, the transition size from planar to three-dimensional structures is modified. For each cluster size, the adsorption energies follow the trend E(a) (NO) < E(a) (NO(2)) < E(a) (NO(3)). The adsorption energies show a marked odd/even alternation with a stronger bonding to odd clusters. Analysis of the electronic structure reveals an ionic bond mechanism for NO(2) and NO(3). Odd/even effects are also present in vibrational properties of the adsorbed radicals. With respect to the gas phase, the largest shifts are calculated for adsorption on odd clusters. Possible implications of the results for Ag/Al(2)O(3) HC-SCR catalysts are discussed.
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Affiliation(s)
- Henrik Grönbeck
- Department of Applied Physics and Competence Centre for Catalysis, Chalmers University of Technology, SE-412 96 Göteborg, Sweden.
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Harding D, Ford MS, Walsh TR, Mackenzie SR. Dramatic size effects and evidence of structural isomers in the reactions of rhodium clusters, Rhn±, with nitrous oxide. Phys Chem Chem Phys 2007; 9:2130-6. [PMID: 17464394 DOI: 10.1039/b618299b] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The reactions of gas phase rhodium clusters, Rhn+/- (n<30), with nitrous oxide, N2O, have been investigated under single collision conditions by Fourier transform ion cyclotron resonance mass spectrometry. The only significant reaction observed is the sequential generation of oxides. Absolute rate constants for the reactions of all clusters have been determined and, in the case of the cationic clusters especially, they exhibit large fluctuations as a function of cluster size with local minima observed for n=5, 19, 28. Striking similarities are observed with the variation in rate constants for these clusters in reactions with small hydrocarbons (C. Adlhart and E. Uggerud, J. Chem. Phys., 2005, 123, 214709). Corresponding size effects are also observed but are less marked in the reactions of the anionic clusters. The reactions of several clusters exhibit marked deviations from simple pseudo-first-order kinetics suggesting the presence of multiple isomeric forms: Rh11+, Rh12+ and Rh8- exhibit characteristic biexponential decays which are interpreted in terms of the existence of different structural forms of the cluster which have markedly different reactivity. By contrast, Rh6+, Rh7+ and Rh8+ show rates which apparently increase with time, probably due to collisional activation. Thermalisation of the clusters prior to reaction by exposure to pulses of argon results in changes to the kinetics of these anomalous systems which can be explained in terms of collision induced isomerisation.
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Affiliation(s)
- Daniel Harding
- Department of Chemistry, University of Warwick, Coventry, UK CV4 7AL
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