1
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Cui C, Zhang H, Gu Y, Geng L, Jia Y, Lin S, Ma J, Luo Z. Tailoring Titanium Carbide Clusters for New Materials: from Met-Cars to Carbon-Doped Superatoms. J Am Chem Soc 2024; 146:9302-9310. [PMID: 38506150 PMCID: PMC10996009 DOI: 10.1021/jacs.4c01068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/08/2024] [Accepted: 03/11/2024] [Indexed: 03/21/2024]
Abstract
Tailoring materials with prescribed properties and regular structures is a critical and challenging research topic. Early transition metals were found to form supermagic M8C12 metallocarbohedrenes (Met-Cars); however, stable metal carbides are not limited to this common stoichiometry. Utilizing self-developed deep-ultraviolet laser ionization mass spectrometry, here, we report a strategy to generate new titanium carbides by reacting pure Tin clusters with acetylene. Interestingly, two products corresponding to Ti17C2 and Ti19C10 exhibit superior abundances in addition to the Ti8C12 Met-Cars. Using global-minimum search, the structures of Ti17C2 and Ti19C10 are determined to be an ellipsoidal D4d and a rod-shaped D5h geometry, respectively, both with carbon-capped Ti4C moieties and superatomic features. We illustrate the electronic structures and bonding nature in these carbon-doped superatoms concerning their enhanced stability and local aromaticity, shedding light on a new class of metal-carbide nanomaterials with atomic precision.
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Affiliation(s)
- Chaonan Cui
- Beijing
National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory
for Structural Chemistry of Unstable and Stable Species, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Hanyu Zhang
- Beijing
National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory
for Structural Chemistry of Unstable and Stable Species, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yuming Gu
- School
of Chemistry and Chemical Engineering, Nanjing
University, Nanjing 210023, China
| | - Lijun Geng
- Beijing
National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory
for Structural Chemistry of Unstable and Stable Species, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yuhan Jia
- Beijing
National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory
for Structural Chemistry of Unstable and Stable Species, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- School
of Chemical Science, University of Chinese
Academy of Sciences, Beijing 100049, China
| | - Shiquan Lin
- Beijing
National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory
for Structural Chemistry of Unstable and Stable Species, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- School
of Chemical Science, University of Chinese
Academy of Sciences, Beijing 100049, China
| | - Jing Ma
- School
of Chemistry and Chemical Engineering, Nanjing
University, Nanjing 210023, China
| | - Zhixun Luo
- Beijing
National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory
for Structural Chemistry of Unstable and Stable Species, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- School
of Chemical Science, University of Chinese
Academy of Sciences, Beijing 100049, China
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2
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Geng L, Sengupta T, Li X, Cui C, Lin S, Xu XL, Reber AC, Khanna SN, Zheng WJ, Luo Z. Unusually High-Spin Fe 12C 12- Metallo-Carbohedrene Clusters. J Am Chem Soc 2023. [PMID: 38041728 DOI: 10.1021/jacs.3c09690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2023]
Abstract
Ferromagnets constructed from nanometals of atomic precision are important for innovative advances in information storage, energy conversion, and spintronic microdevices. Considerable success has been achieved in designing molecular magnets, which, however, are challenging in preparation and may suffer from drawbacks on the incompatibility of high stability and strong ferromagnetism. Utilizing a state-of-the-art self-developed mass spectrometer and a homemade laser vaporization source, we have achieved a highly efficient preparation of pure iron clusters, and here, we report the finding of a strongly ferromagnetic metal-carbon cluster, Fe12C12-, simply by reacting the Fen- clusters with acetylene in proper conditions. The unique stability of this ferromagnetic Fe12C12- cluster is rooted in a plumb-bob structure pertaining to Jahn-Teller distortion. We classify Fe12C12- as a new member of metallo-carbohedrenes and elucidate its structural stability mechanism as well as its soft-landing deposition and magnetization measurements, providing promise for the exploration of potential applications.
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Affiliation(s)
- Lijun Geng
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Turbasu Sengupta
- Department of Physics, Virginia Commonwealth University, Richmond, Virginia 23284-2000, United States
| | - Xilong Li
- State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Chaonan Cui
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Shiquan Lin
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Xi-Ling Xu
- State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Arthur C Reber
- Department of Physics, Virginia Commonwealth University, Richmond, Virginia 23284-2000, United States
| | - Shiv N Khanna
- Department of Physics, Virginia Commonwealth University, Richmond, Virginia 23284-2000, United States
| | - Wei-Jun Zheng
- State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical Science, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhixun Luo
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical Science, University of Chinese Academy of Sciences, Beijing 100049, China
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3
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Ranjan P, Saptal VB, Bera JK. Recent Advances in Carbon Dioxide Adsorption, Activation and Hydrogenation to Methanol using Transition Metal Carbides. CHEMSUSCHEM 2022; 15:e202201183. [PMID: 36036640 DOI: 10.1002/cssc.202201183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 08/29/2022] [Indexed: 06/15/2023]
Abstract
The inevitable emission of carbon dioxide (CO2 ) due to the burning of a substantial amount of fossil fuels has led to serious energy and environmental challenges. Metal-based catalytic CO2 transformations into commodity chemicals are a favorable approach in the CO2 mitigation strategy. Among these transformations, selective hydrogenation of CO2 to methanol is the most promising process that not only fulfils the energy demands but also re-balances the carbon cycle. The investigation of CO2 adsorption on the surface of heterogeneous catalyst is highly important because the formation of various intermediates which determines the selectivity of product. Transition metal carbides (TMCs) have received considerable attention in recent years because of their noble metal-like reactivity, ceramic-like properties, high chemical and thermal stability. These features make them excellent catalytic materials for a variety of transformations such as CO2 adsorption and its conversion into value-added chemicals. Herein, the catalytic properties of TMCs are summarize along with synthetic methods, CO2 binding modes, mechanistic studies, effects of dopant on CO2 adsorption, and carbon/metal ratio in the CO2 hydrogenation reaction to methanol using computational as well as experimental studies. Additionally, this Review provides an outline of the challenges and opportunities for the development of potential TMCs in CO2 hydrogenation reactions.
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Affiliation(s)
- Prabodh Ranjan
- Department of Chemistry and Center for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Vitthal B Saptal
- Department of Chemistry and Center for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Jitendra K Bera
- Department of Chemistry and Center for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
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4
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Huang B, Wu H, Yang M, Luo Z. An integrated instrument of a tandem quadrupole mass spectrometer for cluster reaction and soft-landing deposition. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2022; 93:113307. [PMID: 36461460 DOI: 10.1063/5.0112401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 10/11/2022] [Indexed: 06/17/2023]
Abstract
We have developed an integrated instrument system of a multiple-ion laminar flow tube (MIFT) reactor combined with a tandem quadrupole mass spectrometer (TQMS) and soft-landing deposition (SD) apparatus. A customized water-cooling magnetron sputtering (MagS) source is designed, by which we are able to attain a highly efficient preparation of metal clusters of 1-30 atoms with tunable size distributions. Following the MagS source, a laminar flow tube reactor is designed, allowing for sufficient gas-collision reactions of the as-prepared metal clusters, which is advantageous for probing magic clusters and minimizing wall effects when probing the reaction dynamics of such clusters. The customized TQMS analyzer involves a conical octupole, two linear octupoles, a quadruple ion deflector, and a 19 mm quadruple mass analyzer, allowing to decrease the pressure stepwise (from ∼5 to ∼10-9 Torr), thus ensuring high sensitivity and high resolution of the mass spectrometry analysis. In addition, we have designed a dual SD apparatus for the mass-selected deposition of clusters and their reaction products. For the whole system, abbreviated as MagS-MIFT-TQMS-SD, we have performed a detailed ions-fly simulation and quantitatively estimated the ions transfer efficiency under vacuum conditions determined by real experiments. Taking these advantages, well-resolved Pbn +, Agn +, and Nbn + clusters have been produced, allowing for meticulous studies of cluster reactions under sufficient gas-phase collisions free of electric field trapping. Also, we have tested the efficiency of the dual SD.
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Affiliation(s)
- Benben Huang
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Haiming Wu
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Mengzhou Yang
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Zhixun Luo
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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5
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Jimenez-Orozco C, Figueras M, Flórez E, Viñes F, Rodriguez JA, Illas F. Effect of nanostructuring on the interaction of CO 2 with molybdenum carbide nanoparticles. Phys Chem Chem Phys 2022; 24:16556-16565. [PMID: 35770743 DOI: 10.1039/d2cp01143c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Transition metal carbides are increasingly used as catalysts for the transformation of CO2 into useful chemicals. Recently, the effect of nanostructuring of such carbides has started to gain relevance in tailoring their catalytic capabilities. Catalytic materials based on molybdenum carbide nanoparticles (MoCy) have shown a remarkable ability to bind CO2 at room temperature and to hydrogenate it into oxygenates or light alkanes. However, the involved chemistry is largely unknown. In the present work, a systematic computational study is presented aiming to elucidate the chemistry behind the bonding of CO2 with a representative set of MoCy nanoparticles of increasing size, including stoichiometric and non-stoichiometric cases. The obtained results provide clear trends to tune the catalytic activity of these systems and to move towards more efficient CO2 transformation processes.
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Affiliation(s)
- Carlos Jimenez-Orozco
- Universidad de Medellín, Facultad de Ciencias Básicas, Grupo de Materiales con Impacto (Mat&mpac), Carrera 87 No 30-65, Medellín, Colombia.
| | - Marc Figueras
- Universitat de Barcelona, Departament de Ciència de Materials i Química Física & Institut de Química Teòrica i Computacional (IQTCUB), c/Martí i Franquès 1-11, 08028 Barcelona, Spain.
| | - Elizabeth Flórez
- Universidad de Medellín, Facultad de Ciencias Básicas, Grupo de Materiales con Impacto (Mat&mpac), Carrera 87 No 30-65, Medellín, Colombia.
| | - Francesc Viñes
- Universitat de Barcelona, Departament de Ciència de Materials i Química Física & Institut de Química Teòrica i Computacional (IQTCUB), c/Martí i Franquès 1-11, 08028 Barcelona, Spain.
| | - José A Rodriguez
- Brookhaven National Laboratory, Chemistry Division, Upton, New York 11973, USA
| | - Francesc Illas
- Universitat de Barcelona, Departament de Ciència de Materials i Química Física & Institut de Química Teòrica i Computacional (IQTCUB), c/Martí i Franquès 1-11, 08028 Barcelona, Spain.
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6
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Au12C68: a hollow noble metal carbide. Theor Chem Acc 2022. [DOI: 10.1007/s00214-022-02881-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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7
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Megha, Banerjee A, Ghanty TK. Role of metcar on the adsorption and activation of carbon dioxide: a DFT study. Phys Chem Chem Phys 2021; 23:5559-5570. [PMID: 33651070 DOI: 10.1039/d0cp05756h] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Metallocarbohedrenes or metcars belong to one of the classes of stable nanoclusters having a specific stoichiometry. In spite of the available theoretical and experimental studies, the structure of pristine Ti8C12 metcar is still uncertain. We study the geometric structure of a titanium metcar, Ti8C12, together with its electronic properties and chemical activity towards adsorption and activation of CO2 molecule by means of density functional theory. Our results suggest that the CO2 molecule is strongly adsorbed and undergoes a significantly high degree of activation onto the Ti8C12 metcar. The migration of charge from titanium metcar to CO2 molecule attributes the high degree of activation of this molecule. In the infrared vibrational spectra for CO2 molecule adsorbed onto Ti8C12, we find a new signal which is absent in the corresponding spectra for gaseous CO2. In addition to adsorption energy, we also estimate the energy barrier for the dissociation of CO2 molecule to CO and O fragments on a Ti8C12 cluster. As a whole, this work reveals the ground state geometry of Ti8C12 metcar and highlights the role of this metcar in CO2 adsorption and activation, which are the key steps in designing potential catalysts for CO2 capture and its conversion to industrially valuable chemicals.
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Affiliation(s)
- Megha
- Human Resources Development Section, Raja Ramanna Centre for Advanced Technology, Indore 452013, India and Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Arup Banerjee
- Human Resources Development Section, Raja Ramanna Centre for Advanced Technology, Indore 452013, India and Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Tapan K Ghanty
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India and Theoretical Chemistry Section, Chemistry Group, Bhabha Atomic Research Centre, Mumbai 400085, India and Bio-Science Group, Bhabha Atomic Research Centre, Mumbai 400085, India.
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8
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Li XN, Jiang LX, Liu QY, Ren Y, Wei GP. Hydrogen-assisted C-C coupling on reaction of CuC3H−Cluster anion with CO. CHINESE J CHEM PHYS 2020. [DOI: 10.1063/1674-0068/cjcp2006094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Xiao-na Li
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center of Excellence in Molecular Sciences, Beijing 100190, China
| | - Li-xue Jiang
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center of Excellence in Molecular Sciences, Beijing 100190, China
| | - Qing-yu Liu
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center of Excellence in Molecular Sciences, Beijing 100190, China
| | - Yi Ren
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center of Excellence in Molecular Sciences, Beijing 100190, China
| | - Gong-ping Wei
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center of Excellence in Molecular Sciences, Beijing 100190, China
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9
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Roy G, Chattopadhyay AP. The reactivity of CO on bimetallic Ni 3M clusters (M = Sc, Ti, V, Cr, Mn, Fe, Co, Cu, Rh, Ru, Ag, Pd and Pt) by density functional theory. NEW J CHEM 2019. [DOI: 10.1039/c9nj01842e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Surface C and O overlap with bimetallic clusters in σ, π and δ-type bonding; for example, C is a σ-donor at −15.23 eV and a π-donor at −9.29 eV, and O is a δ-acceptor at −7.76 eV in Ni3Fe clusters.
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10
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Rasaki SA, Zhang B, Anbalgam K, Thomas T, Yang M. Synthesis and application of nano-structured metal nitrides and carbides: A review. PROG SOLID STATE CH 2018. [DOI: 10.1016/j.progsolidstchem.2018.05.001] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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11
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Jena P, Sun Q. Super Atomic Clusters: Design Rules and Potential for Building Blocks of Materials. Chem Rev 2018; 118:5755-5870. [DOI: 10.1021/acs.chemrev.7b00524] [Citation(s) in RCA: 302] [Impact Index Per Article: 50.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Puru Jena
- Physics Department, Virginia Commonwealth University, Richmond, Virginia 23284-2000, United States
| | - Qiang Sun
- Physics Department, Virginia Commonwealth University, Richmond, Virginia 23284-2000, United States
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12
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Sengupta T, Khan MS, Pal S. Mechanistic Investigation of the Carbon-Iodine Bond Activation on the Niobium-Carbon Cluster. ACS OMEGA 2017; 2:5335-5347. [PMID: 31457802 PMCID: PMC6644337 DOI: 10.1021/acsomega.7b00894] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 08/18/2017] [Indexed: 05/10/2023]
Abstract
The activation process of carbon-iodine (C-I) bond on neutral and cationic niobium metcars (Nb8C12) is investigated using density functional theory and related computational techniques. Metallocarbohedrenes or metcars are a class of stable metal-carbide clusters of specific stoichiometry and of great interest to cluster chemists since their first discovery. The detailed reaction mechanism along with the overall energy profile of the C-I dissociation reaction on niobium metcar and its cations is presented in this paper. The tunneling-corrected rate constants and their related reaction parameters such as the pre-exponential factor are also included alongside. The major differences between the reaction mechanism of the neutral and cationic metcars are also highlighted as well. Despite the available experimental results, the C-I bond dissociation on metcars has remained an unexplored problem in the theoretical and computational domains. Thus, the present investigation can fill in the gap and may also provide new insights provoking further developments in cluster and materials chemistry in future.
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Affiliation(s)
- Turbasu Sengupta
- Physical
Chemistry Division, CSIR National Chemical
Laboratory, Pune 411008, India
| | - Muntazir S. Khan
- Physical
Chemistry Division, CSIR National Chemical
Laboratory, Pune 411008, India
| | - Sourav Pal
- Department
of Chemistry, Indian Institute of Technology
Bombay, Powai, Mumbai 400076, India
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13
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Abstract
Metal ions play significant roles in numerous fields including chemistry, geochemistry, biochemistry, and materials science. With computational tools increasingly becoming important in chemical research, methods have emerged to effectively face the challenge of modeling metal ions in the gas, aqueous, and solid phases. Herein, we review both quantum and classical modeling strategies for metal ion-containing systems that have been developed over the past few decades. This Review focuses on classical metal ion modeling based on unpolarized models (including the nonbonded, bonded, cationic dummy atom, and combined models), polarizable models (e.g., the fluctuating charge, Drude oscillator, and the induced dipole models), the angular overlap model, and valence bond-based models. Quantum mechanical studies of metal ion-containing systems at the semiempirical, ab initio, and density functional levels of theory are reviewed as well with a particular focus on how these methods inform classical modeling efforts. Finally, conclusions and future prospects and directions are offered that will further enhance the classical modeling of metal ion-containing systems.
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Affiliation(s)
| | - Kenneth M. Merz
- Department of Chemistry, Department of Biochemistry and Molecular Biology, and Institute of Cyber-Enabled Research, Michigan State University, East Lansing, Michigan 48824, United States
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14
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Affiliation(s)
- Zhixun Luo
- State
Key Laboratory for Structural Chemistry of Unstable and Stable Species,
Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - A. W. Castleman
- Departments
of Chemistry and Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Shiv N. Khanna
- Department
of Physics, Virginia Commonwealth University, Richmond, Virginia 23284, United States
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15
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Bonding-restricted structure search for novel 2D materials with dispersed C2 dimers. Sci Rep 2016; 6:29531. [PMID: 27403589 PMCID: PMC4941692 DOI: 10.1038/srep29531] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 06/17/2016] [Indexed: 01/11/2023] Open
Abstract
Currently, the available algorithms for unbiased structure searches are primarily atom-based, where atoms are manipulated as the elementary units, and energy is used as the target function without any restrictions on the bonding of atoms. In fact, in many cases such as nanostructure-assembled materials, the structural units are nanoclusters. We report a study of a bonding-restricted structure search method based on the particle swarm optimization (PSO) for finding the stable structures of two-dimensional (2D) materials containing dispersed C2 dimers rather than individual C atoms. The C2 dimer can be considered as a prototype of nanoclusters. Taking Si-C, B-C and Ti-C systems as test cases, our method combined with density functional theory and phonon calculations uncover new ground state geometrical structures for SiC2, Si2C2, BC2, B2C2, TiC2, and Ti2C2 sheets and their low-lying energy allotropes, as well as their electronic structures. Equally important, this method can be applied to other complex systems even containing f elements and other molecular dimers such as S2, N2, B2 and Si2, where the complex orbital orientations require extensive search for finding the optimal orientations to maximize the bonding with the dimers, predicting new 2D materials beyond MXenes (a family of transition metal carbides or nitrides) and dichalcogenide monolayers.
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16
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Abstract
An exceptionally stable hollow cage containing 20 scandium atoms and 60 carbon atoms has been identified. This Sc20C60 molecular cluster has a Th point group symmetry and a volleyball-like shape that we refer to below as "Volleyballene". Electronic structure analysis shows that the formation of delocalized π bonds between Sc atoms and the neighboring pentagonal rings made of carbon atoms is crucial for stabilizing the cage structure. A relatively large HOMO-LUMO gap (∼1.4 eV) was found. The results of vibrational frequency analysis and molecular dynamics simulations both demonstrate that this Volleyballene molecule is exceptionally stable.
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Affiliation(s)
- Jing Wang
- Department of Physics and Hebei Advanced Thin Film Laboratory, Hebei Normal University, Shijiazhuang 050024, Hebei, China. and State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Beijing 100083, China
| | - Hong-Man Ma
- Department of Physics and Hebei Advanced Thin Film Laboratory, Hebei Normal University, Shijiazhuang 050024, Hebei, China.
| | - Ying Liu
- Department of Physics and Hebei Advanced Thin Film Laboratory, Hebei Normal University, Shijiazhuang 050024, Hebei, China. and National Key Laboratory for Materials Simulation and Design, Beijing 100083, China
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17
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Deng Q, Heine T, Irle S, Popov AA. Self-assembly of endohedral metallofullerenes: a decisive role of cooling gas and metal-carbon bonding. NANOSCALE 2016; 8:3796-808. [PMID: 26815243 PMCID: PMC4847527 DOI: 10.1039/c5nr08645k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2015] [Accepted: 01/15/2016] [Indexed: 05/12/2023]
Abstract
The endohedral metallofullerene (EMF) self-assembly process in Sc/carbon vapor in the presence and absence of an inert cooling gas (helium) is systematically investigated using quantum chemical molecular dynamics simulations. It is revealed that the presence of He atoms accelerates the formation of pentagons and hexagons and reduces the size of the self-assembled carbon cages in comparison with analogous He-free simulations. As a result, the Sc/C/He system simulations produce a larger number of successful trajectories (i.e. leading to Sc-EMFs) with more realistic cage-size distribution than simulations of the Sc/C system. The main Sc encapsulation mechanism involves nucleation of several hexagons and pentagons with Sc atoms already at the early stages of carbon vapor condensation. In such proto-cages, both Sc-C σ-bonds and coordination bonds between Sc atoms and the π-system of the carbon network are present. Sc atoms are thus rather labile and can move along the carbon network, but the overall bonding is sufficiently strong to prevent dissociation even at temperatures around 2000 kelvin. Further growth of the fullerene cage results in the encapsulation of one or two Sc atoms within the fullerene. In agreement with experimental studies, an extension of the simulations to Fe and Ti as the metal component showed that Fe-EMFs are not formed at all, whereas Ti is prone to form Ti-EMFs with small cage sizes, including Ti@C28-Td and Ti@C30-C2v(3).
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Affiliation(s)
- Qingming Deng
- Leibniz-Institute for Solid State and Materials Research (IFW Dresden) , D-01171 Dresden , Germany .
- Department of Physics and Earth Science , Jacobs University Bremen , Campus Ring 1 , 28759 Bremen , Germany
- Institute of Transformative Bio-Molecules (WPI-ITbM) & Department of Chemistry , Nagoya University , 464-8602 Nagoya , Japan
| | - Thomas Heine
- Department of Physics and Earth Science , Jacobs University Bremen , Campus Ring 1 , 28759 Bremen , Germany
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie , Universität Leipzig , Linnéstr. 2 , 04103 Leipzig , Germany
| | - Stephan Irle
- Institute of Transformative Bio-Molecules (WPI-ITbM) & Department of Chemistry , Nagoya University , 464-8602 Nagoya , Japan
| | - Alexey A. Popov
- Leibniz-Institute for Solid State and Materials Research (IFW Dresden) , D-01171 Dresden , Germany .
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18
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Zhao T, Zhang S, Guo Y, Wang Q. TiC2: a new two-dimensional sheet beyond MXenes. NANOSCALE 2016; 8:233-42. [PMID: 26503155 DOI: 10.1039/c5nr04472c] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
MXenes are attracting attention due to their rich chemistry and intriguing properties. Here a new type of metal-carbon-based sheet composed of transition metal centers and C2 dimers rather than individual C atom is designed. Taking the Ti system as a test case, density functional theory calculations combined with a thermodynamic analysis uncover the thermal and dynamic stability of the sheet, as well as a metallic band structure, anisotropic Young's modulus and Poisson's ratio, a high heat capacity, and a large Debye stiffness. Moreover, the TiC2 sheet has an excellent Li storage capacity with a small migration barrier, a lower mass density compared with standard MXenes, and better chemical stability as compared to the MXene Ti2C sheet. When Ti is replaced with other transition metal centers, diverse new MC2 sheets containing C=C dimers can be formed, the properties of which merit further investigation.
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Affiliation(s)
- Tianshan Zhao
- Center for Applied Physics and Technology, College of Engineering, Peking University, Beijing 100871, China and IFSA Collaborative Innovation Center, and Key Laboratory of High Energy Density Physics Simulation, Ministry of Education, Beijing 100871, China.
| | - Shunhong Zhang
- Center for Applied Physics and Technology, College of Engineering, Peking University, Beijing 100871, China and IFSA Collaborative Innovation Center, and Key Laboratory of High Energy Density Physics Simulation, Ministry of Education, Beijing 100871, China.
| | - Yaguang Guo
- Center for Applied Physics and Technology, College of Engineering, Peking University, Beijing 100871, China and IFSA Collaborative Innovation Center, and Key Laboratory of High Energy Density Physics Simulation, Ministry of Education, Beijing 100871, China.
| | - Qian Wang
- Center for Applied Physics and Technology, College of Engineering, Peking University, Beijing 100871, China and IFSA Collaborative Innovation Center, and Key Laboratory of High Energy Density Physics Simulation, Ministry of Education, Beijing 100871, China.
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19
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Hernández-Valdés D, Alberto R, Jáuregui-Haza U. Quantum chemistry calculations of technetium and rhenium compounds with application in radiopharmacy: review. RSC Adv 2016. [DOI: 10.1039/c6ra23142j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Quantum chemistry calculations are a powerful tool in the development of new 99mTc and 186/188Re radiopharmaceuticals.
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Affiliation(s)
- Daniel Hernández-Valdés
- Instituto Superior de Tecnologías y Ciencias Aplicadas
- Universidad de La Habana
- La Habana
- Cuba
- Department of Chemistry
| | - Roger Alberto
- Department of Chemistry
- University of Zürich
- CH-8057 Zürich
- Switzerland
| | - Ulises Jáuregui-Haza
- Instituto Superior de Tecnologías y Ciencias Aplicadas
- Universidad de La Habana
- La Habana
- Cuba
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20
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Li ZY, Hu L, Liu QY, Ning CG, Chen H, He SG, Yao J. CH Bond Activation by Early Transition Metal Carbide Cluster Anion MoC3−. Chemistry 2015; 21:17748-56. [DOI: 10.1002/chem.201503060] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Indexed: 11/06/2022]
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21
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Li HF, Li ZY, Liu QY, Li XN, Zhao YX, He SG. Methane Activation by Iron-Carbide Cluster Anions FeC6(-). J Phys Chem Lett 2015; 6:2287-2291. [PMID: 26266606 DOI: 10.1021/acs.jpclett.5b00937] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Laser-ablation-generated and mass-selected iron-carbide cluster anions FeC6(-) were reacted with CH4 in a linear ion trap reactor under thermal collision conditions. The reactions were characterized by mass spectrometry and density functional theory calculations. Adsorption product of FeC6CH4(-) was observed in the experiments. The identified large kinetic isotope effect suggests that CH4 can be activated by FeC6(-) anions with a dissociative adsorption manner, which is further supported by the reaction mechanism calculations. The large dipole moment of FeC6(-) (19.21 D) can induce a polarization of CH4 and can facilitate the cleavage of C-H bond. This study reports the CH4 activation by transition-metal carbide anions, which provides insights into mechanistic understanding of iron-carbon centers that are important for condensed-phase catalysis.
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Affiliation(s)
- Hai-Fang Li
- †Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- ‡University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Zi-Yu Li
- †Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, 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, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- ‡University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Xiao-Na Li
- †Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yan-Xia Zhao
- †Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Sheng-Gui He
- †Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
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22
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A density functional study of small Ti C (x, y= 1–4) molecules and their thermochemical properties. Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2014.07.068] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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23
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Cheng SB, Castleman AW. Joint Photoelectron Imaging Spectroscopic and Theoretical Characterization on the Electronic Structures of the Anionic and Neutral ZrC2 Clusters. J Phys Chem A 2014; 118:6935-9. [DOI: 10.1021/jp505648u] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shi-Bo Cheng
- Department of Chemistry and ‡Department of
Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - A. W. Castleman
- Department of Chemistry and ‡Department of
Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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24
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25
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Li ZY, Yuan Z, Zhao YX, He SG. Methane Activation by Diatomic Molybdenum Carbide Cations. Chemistry 2014; 20:4163-9. [DOI: 10.1002/chem.201304042] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Indexed: 01/12/2023]
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26
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27
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Bernstein J, Armon E, Zemel E, Kolodney E. Formation of Indium Carbide Cluster Ions: Experimental and Computational Study. J Phys Chem A 2013; 117:11856-65. [DOI: 10.1021/jp403031p] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
| | - Eran Armon
- Schulich Faculty of Chemistry, Technion, Haifa 32000,
Israel
| | - Erez Zemel
- Schulich Faculty of Chemistry, Technion, Haifa 32000,
Israel
| | - Eli Kolodney
- Schulich Faculty of Chemistry, Technion, Haifa 32000,
Israel
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28
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Lamiel-Garcia O, Bromley ST, Illas F. Low-energy nanoscale clusters of (TiC) n n = 6, 12: a structural and energetic comparison with MgO. Theor Chem Acc 2013. [DOI: 10.1007/s00214-012-1312-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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29
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The Fourier transform microwave spectrum of YC2 () and its 13C isotopologues: Chemical insight into metal dicarbides. Chem Phys Lett 2013. [DOI: 10.1016/j.cplett.2012.10.062] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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31
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Berkdemir C, Castleman AW, Sofo JO. Metal-substituted Ti8C12 metallocarbohedrynes: toward less reactive clusters as building blocks of cluster-assembled materials. Phys Chem Chem Phys 2012; 14:9642-53. [DOI: 10.1039/c2cp40509a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Cüneyt Berkdemir
- Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, USA.
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32
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Hildebrandt A, Mansilla N, Rheinwald G, Rüffer T, Lang H. Alkynyl Ti–M complexes based on M(CO)4 and MO2 building blocks (M = Mo, W). J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2011.06.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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33
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34
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TSIPIS CONSTANTINOSA. ADVENTURES OF QUANTUM CHEMISTRY IN THE REALM OF INORGANIC CHEMISTRY. COMMENT INORG CHEM 2010. [DOI: 10.1080/02603590490486680] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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35
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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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36
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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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37
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Liu P, Choi Y, Yang Y, White MG. Methanol Synthesis from H2 and CO2 on a Mo6S8 Cluster: A Density Functional Study. J Phys Chem A 2009; 114:3888-95. [DOI: 10.1021/jp906780a] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Ping Liu
- Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11973, and Department of Chemistry, State University of New York (SUNY) Stony Brook, Stony Brook, New York 11794
| | - YongMan Choi
- Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11973, and Department of Chemistry, State University of New York (SUNY) Stony Brook, Stony Brook, New York 11794
| | - Yixiong Yang
- Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11973, and Department of Chemistry, State University of New York (SUNY) Stony Brook, Stony Brook, New York 11794
| | - Michael G. White
- Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11973, and Department of Chemistry, State University of New York (SUNY) Stony Brook, Stony Brook, New York 11794
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38
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Redondo P, Largo L, Barrientos C. Charged FeCn clusters: A comparison with (TM=Sc, Ti, V, Co and Zn, n=1–8) systems. Chem Phys 2009. [DOI: 10.1016/j.chemphys.2009.07.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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39
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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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40
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Largo L, Barrientos C, Redondo P. Small iron doped carbon clusters: A comparison with early and late first-row transition metal doped clusters. J Chem Phys 2009; 130:134304. [DOI: 10.1063/1.3095423] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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41
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Fukushima N, Miyajima K, Mafuné F. Ionization Energies of Niobium Carbide Clusters NbnCm (n = 3−10, m = 0−7). J Phys Chem A 2009; 113:2309-15. [DOI: 10.1021/jp809915c] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Naoya Fukushima
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, Komaba, Meguro-ku, Tokyo 153-8902, Japan
| | - Ken Miyajima
- 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
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42
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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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43
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Bernechea M, Berenguer JR, Lalinde E, Torroba J. Facile Single or Double C−H Bond Activation on a Cp* Ligand Promoted by the Presence of Alkynylphosphine Ligands. Organometallics 2008. [DOI: 10.1021/om800867h] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- María Bernechea
- Departamento de Química-Grupo de Síntesis Química de La Rioja, UA-CSIC, Universidad de La Rioja, 26006 Logroño, Spain
| | - Jesús R. Berenguer
- Departamento de Química-Grupo de Síntesis Química de La Rioja, UA-CSIC, Universidad de La Rioja, 26006 Logroño, Spain
| | - Elena Lalinde
- Departamento de Química-Grupo de Síntesis Química de La Rioja, UA-CSIC, Universidad de La Rioja, 26006 Logroño, Spain
| | - Javier Torroba
- Departamento de Química-Grupo de Síntesis Química de La Rioja, UA-CSIC, Universidad de La Rioja, 26006 Logroño, Spain
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44
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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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45
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Joswig JO, Springborg M. The influence of C2 dimers on the stability of TimCn metcar clusters. J Chem Phys 2008; 129:134311. [DOI: 10.1063/1.2989958] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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46
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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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47
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Reed ZD, Duncan MA. Photodissociation of Yttrium and Lanthanum Oxide Cluster Cations. J Phys Chem A 2008; 112:5354-62. [DOI: 10.1021/jp800588r] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Z. D. Reed
- 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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48
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Molek KS, Anfuso-Cleary C, Duncan MA. Photodissociation of Iron Oxide Cluster Cations. J Phys Chem A 2008; 112:9238-47. [DOI: 10.1021/jp8009436] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- K. S. Molek
- Department of Chemistry, University of Georgia, Athens, Georgia 30602-2556
| | - C. Anfuso-Cleary
- 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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49
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Jia LC, Zhao RN, Han JG, Sheng LS, Cai WP. Geometries and stabilities of the carbon clusters with the rhodium impurity: a computational investigation. J Phys Chem A 2008; 112:4375-81. [PMID: 18393542 DOI: 10.1021/jp711380x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A density functional study of the RhCn(n = 1-6) clusters with different spin states has been carried out systematically by using the B3LYP/Lan2DZ method. The equilibrium geometries associated with total energies and natural populations of RhCn (n = 1-6) clusters are calculated and presented. Stabilities and electronic properties are discussed in detail. The relative stabilities in term of the calculated fragmentation energies show that the lowest-energy RhCn clusters with rhodium atom being located at terminal of carbon chain are the linear geometries and the ground states of the RhCn clusters alternate between doublet (for n-odd members) and quartet (for n-even members) states. Furthermore, the calculated fragmentation energies of the RhCn show strong even-odd alternations: the RhCn clusters with an odd number of carbon atoms are more stable than those with an even number ones. In addition, we comment on the charge transfer and chemical bonding properties within the clusters.
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Affiliation(s)
- Li-Chao Jia
- Institute of Solid State Physics, The Chinese Academy of Sciences, Hefei 230031, People's Republic of China
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50
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Yuan Y, Deng K, Liu Y, Tang C, Tan W, Huang D, Yang J, Wang X. A theoretical study of the TiC5 cluster. J Chem Phys 2008; 128:064314. [PMID: 18282045 DOI: 10.1063/1.2828550] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The geometric and electronic properties of the titanium carbide TiC(5) cluster in its neutral and anionic charge states have been investigated using density functional theory (DFT) at the B3LYP level. The nonplanar six-membered ring-type or "butterflylike" structures are found to be the equilibrium geometric structures of TiC(5) and TiC(5) (-). Time-dependent DFT is used in the calculation of the excited states. The theoretical assignment at the B3LYP level for the features in the photoelectron spectrum is given. All results obtained are in good agreement with the available experimental data.
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Affiliation(s)
- Yongbo Yuan
- Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
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