1
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Hu J, Ma J, Jin Z, Liu W, Huang L, Wang X, Xing X. Reactivity of cationic silver clusters with O 2: a probe of interplay between clusters' geometric and electronic structures. Phys Chem Chem Phys 2024; 26:7407-7415. [PMID: 38351849 DOI: 10.1039/d3cp05082c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
We explored the size-dependent reactivity of Agn+ (n = 2-22) with O2 under mild conditions and found that only a few sizes of Agn+, with even values of n = 4, 6, 12, 16, 18, and 22, are reactive. Possible structures of Agn+ (n = 2-22) were determined using a genetic algorithm with incomplete local optimizations at the DFT level, and the calculated bonding strengths of O2 on these structures are consistent with experimental observations. Analyses revealed a close relationship between the reactivity of Agn+ with O2 and its HOMO-LUMO gap: cationic silver clusters with a small HOMO-LUMO gap are reactive, which can be rationalized by the covalent character of chemical bonds between Agn+ and O2 involving their frontier orbitals. The peculiar size-dependent HOMO-LUMO gaps and reactivity with O2 correlate with the subtle interplay between the electronic configurations and geometric structures of these silver cluster cations.
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Affiliation(s)
- Jin Hu
- School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai, 200092, China.
| | - Jun Ma
- School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai, 200092, China.
| | - Zhengqian Jin
- School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai, 200092, China.
| | - Wen Liu
- School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai, 200092, China.
| | - Lulu Huang
- School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai, 200092, China.
| | - Xuefeng Wang
- School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai, 200092, China.
| | - Xiaopeng Xing
- School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai, 200092, China.
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2
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Xu YS, Die D, Zheng BX. Growth pattern and electronic and magnetic properties of Cr-doped silver clusters. J Comput Chem 2023; 44:2284-2293. [PMID: 37578012 DOI: 10.1002/jcc.27197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 07/11/2023] [Accepted: 07/13/2023] [Indexed: 08/15/2023]
Abstract
Growth pattern and electronic and magnetic properties of Agn Cr (n = 1-16) clusters have been investigated via density functional theory (DFT) combined with CALYPSO structure search method. The optimized geometry shows that the growth of the global minimum structures of Agn Cr clusters have obvious rule. when n > 12, silver atoms grow around an icosahedron which is almost unchanged in each structure. Analyses of electronic properties indicate that the doped Cr atom can only enhance the stability of larger silver clusters. Optical absorption and photoelectron spectra of Agn Cr isomers have been predicted and can be used for their structural identification. The icosahedral Ag12 Cr cluster with large energy level gap can be seen as a superatom. The adsorption capacity of Cr atom in Agn Cr cluster to CO is much higher than that of free Cr atom. The intensity of IR and Ramam spectra can be dramatically enhanced when CO is absorbed on Agn Cr cluster that Cr atom is encapsulated by Ag atoms. Moreover, the red shift of IR and Raman spectra of CO adsorbed on these clusters is also very small compared to free CO. Magnetism calculations show that the magnetic moment of Agn Cr clusters decreases linearly from n = 6 to 12 and increases linearly from n = 12 to 16. The total magnetic moment of Agn Cr cluster is mainly localized on the Cr atom. The change of magnetic moment of Cr atom is related to the charge transfer between Cr and Ag atoms.
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Affiliation(s)
- Yu-Sheng Xu
- School of Science, Xihua University, Chengdu, China
| | - Dong Die
- School of Science, Xihua University, Chengdu, China
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3
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Zuo J, Zhang L, Chen B, He K, Dai W, Ding K, Lu C. Geometric and electronic structures of medium-sized boron clusters doped with plutonium. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2023; 36:015302. [PMID: 37767896 DOI: 10.1088/1361-648x/acfc0c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 09/21/2023] [Indexed: 09/29/2023]
Abstract
Doping metal heteroatoms is an effective strategy to regulate the geometric and electronic structure of boron based nanoclusters. However, the exploration of the ground state structures of metal-boron-based nanoclusters is still a challenge duo to the complexity of the bonding interactions between heterogeneous atoms and boron cluster and the number of isomers on the potential energy surface increases exponentially with cluster size. Here, we use the CALYPSO cluster structural search method in combination with density functional theory calculations to study the geometries and electronic properties of anionic boron clusters doped with plutonium (PuBn-,n= 10-20). Our results show that the medium-sized PuB14-cluster exhibits excellent stability with highest occupied molecular orbital-lowest unoccupied molecular orbital energy gap of 2.30 eV. The remarkable stability of the anionic PuB14-cluster is due to the robust interactions between the Pu metal and the B14skeleton, along with the strong covalent interactions between the B atoms. These findings enrich the geometric structure database of metal doped clusters and provide valuable insights for the future synthesis of boron based nanomaterials.
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Affiliation(s)
- Jingning Zuo
- School of Mathematics and Physics, China University of Geosciences (Wuhan), Wuhan 430074, People's Republic of China
| | - Lili Zhang
- School of Mathematics and Physics, China University of Geosciences (Wuhan), Wuhan 430074, People's Republic of China
| | - Bole Chen
- School of Science, Chongqing University of Posts and Telecommunications, Chongqing 400065, People's Republic of China
| | - Kaihua He
- School of Mathematics and Physics, China University of Geosciences (Wuhan), Wuhan 430074, People's Republic of China
| | - Wei Dai
- School of Mathematics and Physics, Jingchu University of Technology, Hubei 448000, People's Republic of China
| | - Kewei Ding
- State Key Laboratory of Fluorine and Nitrogen Chemicals, Xi'an 710065, People's Republic of China
- Xi'an Modern Chemistry Research Institute, Xi'an 710065, People's Republic of China
| | - Cheng Lu
- School of Mathematics and Physics, China University of Geosciences (Wuhan), Wuhan 430074, People's Republic of China
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4
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Ishikawa T, Kusakabe K, Makino Y, Sakamoto S, Okuyama N. Search for the Decomposition Process of 2,4,6-Trinitrotoluene by an Evolutionary Algorithm. J Phys Chem A 2022; 126:8082-8087. [PMID: 36264275 DOI: 10.1021/acs.jpca.2c04913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this paper, we explored stable states in the system of 2,4,6-trinitrotoluene (TNT) crystal with a few additional hydrogen radicals (Hadd's) using a structure-search scheme based on first-principles calculations and an evolutionary algorithm (EA) to get insights into the decomposition process of TNT. We introduced three evolutionary operators acting on Hadd's and transforming only local structures of TNT molecules: "displacement", "permutation", and "mating". We searched for stable structures by increasing the number of Hadd's (n) from 1 to 2, 3, 4, 6, and 8 and constructed a convex-hull diagram for the formation energy from solid TNT and solid hydrogen. We showed that the system of n = 6 had the largest energy reduction, in which five of the eight TNT molecules in the calculation cell were transformed into NO, H2O, C2H3N, C2NO3H3, C8N2O4H7, C9N2O8H5, and C14N7O12H11. Analysis of the structural transformations observed during the EA search indicates that (1) the Hadd's approaching the TNT molecules react with C, forming a six-membered ring, and with N and O in nitro groups, leaving the TNT molecules as NO, H2O, C2H3N, and C2NO3H3, and (2) the partially decomposed TNT molecules are bonded to one another via C, N, and O.
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Affiliation(s)
- Takahiro Ishikawa
- Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Koichi Kusakabe
- Graduate School of Science, University of Hyogo, 3-2-1 Koto, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
| | - Yuto Makino
- Daicel Corporation, Grand Front Osaka Tower-B 3-1, Ofuka-cho, Kita-ku, Osaka 530-0011, Japan
| | - Satoshi Sakamoto
- Daicel Corporation, Grand Front Osaka Tower-B 3-1, Ofuka-cho, Kita-ku, Osaka 530-0011, Japan
| | - Naoto Okuyama
- Daicel Corporation, Grand Front Osaka Tower-B 3-1, Ofuka-cho, Kita-ku, Osaka 530-0011, Japan
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5
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The Au12 Gold Cluster: Preference for a Non-Planar Structure. Symmetry (Basel) 2022. [DOI: 10.3390/sym14081665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The transition point from a two-dimensional (2D) to a three-dimensional (3D) structure in a series of small gold clusters remains a topic of continuing debate. In the present study, coupled-cluster CCSD(T) and DFT calculations are performed to re-examine the relative energies of several low-lying isomers of Au12, aiming to shed new light on this issue. At odds with many previous reports on the preference of a planar di-capped elongated-hexagon structure, the Au12 size is found to energetically prefer a globular cup-like form with C2v symmetry. While DFT results are not able to assign the most stable form of Au12 as the relative energies between the lowest-lying isomers are strongly functional-dependent, coupled-cluster theory calculations point out the preference of a 3D structure for having a D3h symmetry. Such a prediction is further supported by a comparison of the vibrational spectra computed using the revTPSS density functional with the available experimental infrared ones that were previously recorded from the far-IR multiple photon dissociation (FIR-MPD) experiment.
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6
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Tan LP, Die D, Zheng BX. Growth mechanism, electronic properties and spectra of aluminum clusters. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 267:120545. [PMID: 34739894 DOI: 10.1016/j.saa.2021.120545] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/29/2021] [Accepted: 10/24/2021] [Indexed: 06/13/2023]
Abstract
Density functional theory (DFT) and particle swarm optimization (PSO) have been applied to study the growth behavior, electronic properties and spectra of neutral, anionic and cationic aluminum clusters with 3-20 atoms. Many isomers have been obtained through a comprehensive structural search. The results indicate that the ground state structures of neutral and anionic aluminum clusters follow an identical periodic growth law. When the number of atoms is 6-11 and 13-18, Al atoms in these clusters grow around an octahedral cluster nucleus and an icosahedral cluster nucleus, respectively. For Aln+ (n ≤ 14 and n ≠ 7) clusters, the most stable structure is different from that of Aln or Aln-clusters. When n > 14, the ground state structure of Aln+ clusters is similar to that of Aln or Aln-clusters. The electronic properties of aluminum clusters have been analyzed by the averaged binding energy, second-order difference of energy, energy gap and dissociation energy. It is found that the Al7+ and Al13- clusters have very high stability and a large energy gap and can be regarded as two superatoms. The aluminum cluster with 18 or 40 valence electrons are the least likely to lose an electron. The dissociation behavior of Aln+ clusters caused by collision is reasonably explained by means of the dissociation energy. The optical absorption spectra of neutral aluminum clusters have been simulated by using the time-dependent density functional theory. The ground states of anionic aluminum clusters have been determined by comparing theoretical photoelectron spectra (PES) with experimental findings. Infrared and Raman spectra of cationic aluminum clusters have been forecasted and can assist in identifying the most stable structure in future experiments.
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Affiliation(s)
- Li-Ping Tan
- School of Science, Xihua University, Chengdu 610039, China
| | - Dong Die
- School of Science, Xihua University, Chengdu 610039, China.
| | - Ben-Xia Zheng
- School of Science, Xihua University, Chengdu 610039, China
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7
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Nhat PV, Si NT, Hang NTN, Nguyen MT. The lowest-energy structure of the gold cluster Au 10: planar vs. nonplanar? Phys Chem Chem Phys 2021; 24:42-47. [PMID: 34905595 DOI: 10.1039/d1cp04440k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The onset of the transition from 2D to 3D structures in pure gold clusters remains a matter of continuing debate. In this theoretical study we revisit several planar and non-planar structural motifs of the size Au10 with the aim to clarify this issue. Computations using a long-range corrected exchange-correlation functional LC-BLYP, coupled-cluster theories CCSD(T) and PNO-LCCSD(T)-F12 reveal that, at variance with previous reports on the preference of a planar elongated hexagon, both planar and nonplanar isomers of the neutral Au10 are energetically degenerated up to 300 K. Its 3D equilibrium geometry is a core-shell structure which can be built up from a trigonal prism by capping four extra Au atoms outside. A comparison to the available experimental vibrational spectra allows us to argue that both lowest-lying 2D and 3D isomers of Au10 likely coexist in the molecular beam during measurement of its FIR spectra. This result also suggests that the 2D-3D transition of neutral gold clusters occurs at the size Au10.
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Affiliation(s)
- Pham Vu Nhat
- Department of Chemistry, Can Tho University, Can Tho 900000, Vietnam.
| | - Nguyen Thanh Si
- Department of Chemistry, Can Tho University, Can Tho 900000, Vietnam.
| | - Nguyen Thi Nhat Hang
- Faculty of Food Science and Technology, Thu Dau Mot University, Thu Dau Mot, Vietnam
| | - Minh Tho Nguyen
- Institute for Computational Science and Technology (ICST), Quang Trung Software City, Ho Chi Minh City, Vietnam.
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8
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Deng Z, Zhou Y, Zhao L, Cheng D. Structures and structural evolution of MN (M = Pt, Ag, Au, N=2-20) from combined revised particle swarm optimization and density function theory. MOLECULAR SIMULATION 2021. [DOI: 10.1080/08927022.2021.1974431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Zhuoran Deng
- State Key Laboratory of Organic–Inorganic Composites, Beijing University of Chemical Technology, Beijing, People’s Republic of China
| | - Yingcheng Zhou
- College of Information Science and Technology, Beijing University of Chemical Technology, Beijing, People’s Republic of China
| | - Liqiang Zhao
- College of Information Science and Technology, Beijing University of Chemical Technology, Beijing, People’s Republic of China
| | - Daojian Cheng
- State Key Laboratory of Organic–Inorganic Composites, Beijing University of Chemical Technology, Beijing, People’s Republic of China
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9
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Jin S, Sun W, Chen B, Kuang X, Lu H, Lu C. Insights into the Structures and Bonding of Medium-Sized Cerium-Doped Boron Clusters. J Phys Chem A 2021; 125:4126-4132. [PMID: 33961432 DOI: 10.1021/acs.jpca.1c02148] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Since the discovery of metal-doped boron clusters attracted great significance to create a new class of materials, research interests have been directed to chemical bonding and structural evolution of lanthanide boride clusters. Here, we perform an extensive ground-state structure search for the CeBn and CeBn- clusters in the size range from 9 to 18 using the Crystal structure AnaLYsis by Particle Swarm Optimization method and density functional theory optimization. It is found that the ground-state structures in both neutral and anionic series possess half-sandwich geometry. The host boron moiety in neutral series has a tendency to form borophene-like geometry. The pentagonal and hexagonal holes are more common in the larger anionic CeBn- series. The theoretical photoelectron spectroscopy has been simulated by applying time-dependent density functional theory calculations. The neutral CeB14 cluster is identified as a magic cluster on the basis of its robust relative stability with respect to its neighbors. Electronic structure and chemical bonding analyses reveal that the CeB14 cluster possesses a large HOMO-LUMO gap and enhanced stability with strong delocalized π and δ bonding via interactions between the Ce 5d- and B 2p-AOs.
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Affiliation(s)
- Siyu Jin
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
| | - Weiguo Sun
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
| | - Bole Chen
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
| | - Xiaoyu Kuang
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
| | - Haiyan Lu
- Science and Technology on Surface Physics and Chemistry Laboratory, P.O. Box 9-35, Jiangyou 621908, China
| | - Cheng Lu
- School of Mathematics and Physics, China University of Geosciences (Wuhan), Wuhan 430074, China
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10
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Decrypting the Structural, Electronic and Spectroscopic Properties of GeMgn+(n = 2–12) Clusters: A DFT Study. J CLUST SCI 2021. [DOI: 10.1007/s10876-021-02039-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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11
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Zeng L, Deng PJ, Bi J, Zhu BC. Searching new structures of beryllium-doped in small-sized magnesium clusters: Be 2 Mg n Q (Q = 0, -1; n = 1-11) clusters DFT study. J Comput Chem 2020; 41:1885-1897. [PMID: 32510641 DOI: 10.1002/jcc.26359] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 04/05/2020] [Accepted: 05/22/2020] [Indexed: 01/05/2023]
Abstract
Using CALYPSO method to search new structures of neutral and anionic beryllium-doped magnesium clusters followed by density functional theory (DFT) calculations, an extensive study of the structures, electronic and spectral properties of Be2 Mgn Q (Q = 0, -1; n = 2-11) clusters is performed. Based on the structural optimization, it is found that the Be2 Mgn Q (Q = 0, -1) clusters are shown by tetrahedral-based geometries at n = 2-6 and tower-like-based geometries at n = 7-11. The calculations of stability indicate that Be2 Mg5 Q=0 , Be2 Mg5 Q=-1 , and Be2 Mg8 Q=-1 clusters are "magic" clusters with high stability. The NCP shows that the charges are transferred from Mg atoms to Be atoms. The s- and p-orbitals interactions of Mg and Be atoms are main responsible for their NEC. In particular, chemical bond analysis including molecular orbitals (MOs) and chemical bonding composition for magic clusters to further study their stability. The results confirmed that the high stability of these clusters is due to the interactions between the Be atom and the Mg5 or Mg8 host. Finally, theoretical calculations of infrared and Raman spectra of the ground state of Be2 Mgn Q (Q = 0, -1; n = 1-11) clusters were performed, which will be absolutely useful for future experiments to identify these clusters.
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Affiliation(s)
- Lu Zeng
- College of Materials Science and Engineering, Chongqing University, Chongqing, China
| | - Ping-Ji Deng
- School of Public Health and Management, Hubei University of Medicine, Shiyan, China
| | - Jie Bi
- School of Mathematics and Physics, China University of Geosciences (Wuhan), Wuhan, China
| | - Ben-Chao Zhu
- School of Public Health and Management, Hubei University of Medicine, Shiyan, China
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12
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Li HS, Wei D, Zhao X, Ren X, Zhang D, Ju W. Thermal Stability of Ag 13- Clusters Studied by Ab Initio Molecular Dynamics Simulations. J Phys Chem A 2020; 124:4325-4332. [PMID: 32390419 DOI: 10.1021/acs.jpca.0c00277] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Identification of the geometric structures of silver clusters is of great importance in future nanotechnologies due to their superior properties. Nevertheless, some ground-state structures are still in academic debate, partly because the experiments and theoretical calculations are not performed at the same temperatures. For example, silver clusters usually have compact configurations. However, a combined experimental and theoretical study proposed that the most stable structure of Ag13- had a two-coordinated atom. By using the CALYPSO approach for the global minima search followed by first-principles calculations, we discovered that a more compact trilayer Ag13- cluster was the ground state, in accordance with another three works published recently. In addition, its O2 adsorption structure is also energetically favored. By tracing characteristic bond changes in ab initio molecular dynamics (MD) simulations, we confirmed that, compared with other isomers, this trilayer structure and its O2 adsorption structure also had the highest thermal stability. This work emphasized the thermal stability concept in theoretical calculations, which may be a necessary supplement to explain the experimental observations on cluster science.
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Affiliation(s)
- Hai-Sheng Li
- School of Physics and Engineering, Henan University of Science and Technology, Luoyang City 471023, Henan Province, China
| | - Donghui Wei
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, Henan Province, P. R. China
| | - Xingju Zhao
- Department of Physics, Beijing Normal University, Beijing 100875, P.R. China
| | - Xiaoyan Ren
- International Laboratory for Quantum Functional Materials of Henan, School of Physics and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Dawei Zhang
- School of Physics and Engineering, Henan University of Science and Technology, Luoyang City 471023, Henan Province, China
| | - Weiwei Ju
- School of Physics and Engineering, Henan University of Science and Technology, Luoyang City 471023, Henan Province, China
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13
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Tang J, Zhang C, Chen H. C/N/O centred metal clusters: super valence bonding and magic structure with 26 valence electrons. Mol Phys 2020. [DOI: 10.1080/00268976.2019.1642526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Jianling Tang
- College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou, People’s Republic of China
| | - Cairong Zhang
- Department of Applied Physics, Lanzhou University of Technology, Lanzhou, People’s Republic of China
| | - Hongshan Chen
- College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou, People’s Republic of China
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14
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Fernandes GFS, Machado FBC, Ferrão LFA. Identification of Magic Numbers in Homonuclear Clusters: The ε 3 Stability Ranking Function. J Phys Chem A 2020; 124:454-463. [PMID: 31851825 DOI: 10.1021/acs.jpca.9b11264] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
With the rise of cluster-assembled materials, an index that is able to rank and identify stable clusters or molecules is of great interest in materials sciences and engineering. In the present work, we applied a stability ranking function (ε3) in nanoclusters formed by simple metals (Na, Mg), main group elements (Al), or transition metals (Ti, Cu). The ε3 function parameters are molecular properties derived from the wave function. These parameters can be divided into kinetic and thermodynamic descriptors, in which the kinetic descriptors are the ionization potential and electronic excitation energy, while the atomization free Gibbs energy is the thermodynamic one. This simple ε3 function was able to identify the possible magic numbers of the studied clusters across the periodic table in a good agreement with previous experimental and theoretical works.
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Affiliation(s)
- Gabriel F S Fernandes
- Departamento de Química , Instituto Tecnológico de Aeronáutica , São José dos Campos , SP 12228-900 , Brasil
| | - Francisco B C Machado
- Departamento de Química , Instituto Tecnológico de Aeronáutica , São José dos Campos , SP 12228-900 , Brasil
| | - Luiz F A Ferrão
- Departamento de Química , Instituto Tecnológico de Aeronáutica , São José dos Campos , SP 12228-900 , Brasil
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15
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Wang C, Yang Y, Liu X, Li Y, Song D, Tian Y, Zhang Z, Shen X. Dissociative chemisorption of O2 on Agn and Agn−1Ir (n = 3–26) clusters: a first-principle study. Phys Chem Chem Phys 2020; 22:9053-9066. [DOI: 10.1039/d0cp01005g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lower dissociation barriers and higher reaction rates of O2 on doped Agn−1Ir clusters, and a gradually weakened dopant effect.
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Affiliation(s)
- Chuangchuang Wang
- Engineering Research Center of Advanced Functional Material Manufacturing of Ministry of Education
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Yongpeng Yang
- Engineering Research Center of Advanced Functional Material Manufacturing of Ministry of Education
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Xiaojing Liu
- Engineering Research Center of Advanced Functional Material Manufacturing of Ministry of Education
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Yuanjie Li
- Engineering Research Center of Advanced Functional Material Manufacturing of Ministry of Education
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Dandan Song
- Engineering Research Center of Advanced Functional Material Manufacturing of Ministry of Education
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Yun Tian
- Engineering Research Center of Advanced Functional Material Manufacturing of Ministry of Education
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Zhaojun Zhang
- State Key Laboratory of Molecular Reaction Dynamics and Center for Theoretical Computational Chemistry
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- People's Republic of China
| | - Xiangjian Shen
- Engineering Research Center of Advanced Functional Material Manufacturing of Ministry of Education
- Zhengzhou University
- Zhengzhou 450001
- China
- State Key Laboratory of Molecular Reaction Dynamics and Center for Theoretical Computational Chemistry
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16
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Jin S, Chen B, Kuang X, Lu C, Gutsev GL. Structural evolution and electronic properties of medium-sized boron clusters doped with scandium. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2019; 31:485302. [PMID: 31412328 DOI: 10.1088/1361-648x/ab3b2b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Doping of boron-based materials with transition metal atoms allows one to tune or modify the properties and structure of the materials. In this work, an extensive search for the global minima on potential energy surfaces of ScB n and ScB[Formula: see text] clusters has been performed using the CALYPSO method. The structural evolution of scandium doped boron clusters of this range is found to proceed in three steps; namely, the formation of half-sandwich type structures is followed by the formation of drum-like structures with the Sc atom located at the center and terminates with the cage-like structures. It is also found that highly symmetrical geometric structures are more common for the smaller size range of [Formula: see text]. The neutral ScB13 cluster is identified as magic on the basis of an analysis of relative stabilities in the ScB n series. Our analysis of chemical bonding has shown that the stability of this cluster is mainly due to the formation of several delocalized [Formula: see text]-bonding molecular orbitals composed of Sc 3d and B 2s atomic orbitals. These bonds appear to be responsible for the enhanced stability of ScB13 with respect to other Sc-doped boron clusters.
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Affiliation(s)
- Siyu Jin
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, People's Republic of China
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17
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Zhu BC, Deng PJ, Zeng L. Systematic Theoretical Study on Structural, Stability, Electronic, and Spectral Properties of Si 2 Mg n Q ( Q = 0, ±1; n = 1-11) Clusters of Silicon-Magnesium Sensor Material. Front Chem 2019; 7:771. [PMID: 31781548 PMCID: PMC6861164 DOI: 10.3389/fchem.2019.00771] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 10/24/2019] [Indexed: 11/25/2022] Open
Abstract
By using CALYPSO searching method and Density Functional Theory (DFT) method at the B3LYP/6-311G (d) level of cluster method, a systematic study of the structures, stabilities, electronic and spectral properties of Si2MgnQ (n = 1–11; Q = 0, ±1) clusters of silicon-magnesium sensor material, is performed. According to the calculations, it was found that when n > 4, most stable isomers in Si2MgnQ (n = 1–11; Q = 0, ±1) clusters of silicon-magnesium sensor material are three-dimensional structures. Interestingly, although large size Si2MgnQ clusters show cage-like structures, silicon atoms are not in the center of the cage, but tend to the edge. The Si2Mg1,5,6,8-1 and Si2Mg13,4,7,9,10+1 clusters obviously differ to their corresponding neutral structures, which are in good agreement with the calculated values of VIP, AIP, VEA, and AEA. |VIP-VEA| values reveal that the hardness of Si2Mgn clusters decreases with the increase of magnesium atoms. The relative stabilities of neutral and charged Si2MgnQ (n = 1–11; Q = 0, ±1) clusters of silicon-magnesium sensor material is analyzed by calculating the average binding energy, fragmentation energy, second-order energy difference and HOMO-LUMO gaps. The results reveal that the Si2Mg30, Si2Mg3-1, and Si2Mg3+1clusters have stronger stabilities than others. NCP and NEC analysis results show that the charges in Si2MgnQ (n = 1–11; Q = 0, ±1) clusters of silicon-magnesium sensor material transfer from Mg atoms to Si atoms except for Si2Mg1+1, and strong sp hybridizations are presented in Si atoms of Si2MgnQ clusters. Finally, the infrared (IR) and Raman spectra of all ground state of Si2MgnQ (n = 1–11; Q = 0, ±1) clusters of silicon magnesium sensor material are also discussed.
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Affiliation(s)
- Ben-Chao Zhu
- School of Public Health and Management, Hubei University of Medicine, Shiyan, China.,Center for Environment and Health in Water Source Area of South-to-North Water Diversion, Hubei University of Medicine, Shiyan, China
| | - Ping-Ji Deng
- School of Public Health and Management, Hubei University of Medicine, Shiyan, China.,Center for Environment and Health in Water Source Area of South-to-North Water Diversion, Hubei University of Medicine, Shiyan, China
| | - Lu Zeng
- College of Materials Science and Engineering, Chongqing University, Chongqing, China
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18
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Rana M, Chowdhury P. Studies on Size Dependent Structures and Optical Properties of CdSeS Clusters. J CLUST SCI 2019. [DOI: 10.1007/s10876-019-01719-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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19
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Wang Y, Gong W, Zuo P, Kang L, Yin G. A Novel Spherical Boron Phosphide as a High-Efficiency Overall Water Splitting Catalyst: A Density Functional Theory Study. Catal Letters 2019. [DOI: 10.1007/s10562-019-02996-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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20
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Fu YC, Die D, Chen L, Zhu B, Yin HL. The structural, electronic and magnetic properties of Ag 4M and Ag 4MCO (M = Sc–Zn) clusters. Mol Phys 2019. [DOI: 10.1080/00268976.2019.1622051] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Yao-Chun Fu
- School of Science, Xihua University, Chengdu, People’s Republic of China
| | - Dong Die
- School of Science, Xihua University, Chengdu, People’s Republic of China
| | - Lin Chen
- School of Science, Xihua University, Chengdu, People’s Republic of China
| | - Bing Zhu
- School of Science, Xihua University, Chengdu, People’s Republic of China
| | - Hua-Lin Yin
- School of Science, Xihua University, Chengdu, People’s Republic of China
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21
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Lu SJ, Farooq U, Xu HG, Xu XL, Zheng WJ. Structural evolution and electronic properties of Au 2Ge n−/0 ( n=1−8) clusters: Anion photoelectron spectroscopy and theoretical calculations. CHINESE J CHEM PHYS 2019. [DOI: 10.1063/1674-0068/cjcp1902036] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Sheng-Jie Lu
- Department of Chemistry and Chemical Engineering, Heze University, Heze 274015, China
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Umar Farooq
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Department of Chemistry, COMSATS University Islamabad, Abbottabad-Campus, Pakistan
| | - Hong-Guang Xu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Xi-Ling Xu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Wei-Jun Zheng
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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22
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Theoretical Study on the Growth Behavior and Photoelectron Spectroscopy of Lanthanum-Doped Silicon Clusters LaSi
n
0/−
(n = 6–20). J CLUST SCI 2019. [DOI: 10.1007/s10876-019-01541-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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23
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Rigby OM, Stamp AV, Hindmarsh SA, Alonso-Orts M, Nogales E, Méndez B, Sanchez AM. Direct observation of tunnelled intergrowth in SnO 2/Ga 2O 3 complex nanowires. NANOTECHNOLOGY 2019; 30:054004. [PMID: 30511657 DOI: 10.1088/1361-6528/aaefc4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
β-Ga2O3 intergrowths have been revealed in the SnO2 rutile structure when SnO2/Ga2O3 complex nanostructures are grown by thermal evaporation with a catalyst-free basis method. The structure is formed by a Ga2O3 nanowire trunk, around which a rutile SnO2 particle is formed with [001] aligned to the [010] Ga2O3 trunk axis. Inside the SnO2 particle, β-Ga2O3 units occur separated periodically by hexagonal tunnels in the (210) rutile plane. Orange (620 nm) optical emission from tin oxide, with a narrow linewidth indicating localised electronic states, may be associated with this β-Ga2O3 intergrowth.
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Affiliation(s)
- Oliver M Rigby
- Department of Physics, University of Warwick, Coventry, CV4 7AL, United Kingdom
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24
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Fernandes GFS, Pinheiro Júnior M, Machado FBC, Ferrão LFA. Stability and Reactivity of Silicon Magic Numbers Doped with Aluminum and Phosphorus Atoms. J Phys Chem A 2019; 123:247-256. [PMID: 30514087 DOI: 10.1021/acs.jpca.8b10214] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The progressive scaling down of the silicon-based electronics has allowed to develop devices at nanometer scale, requiring new engineering techniques guided by fundamental chemical and physical concepts. Particularly, the nanostructured cluster systems are promising materials since their physical-chemical properties are sensitive to its shape, size, and chemical components, such that completely different materials can be produced by the simple addition or removal of a single atom. These size-tunable properties can open a new area in materials science and engineering. In the present work, quantum chemical methods were used to study the chemical substitution effects caused by subvalent (aluminum) and supervalent (phosphorus) atoms in the physical-chemical properties of some small silicon clusters, which demonstrate high stability, called magic numbers. The changes in the electronic structure and chemical acceptance to the dopants were evaluated with respect to ionization potential, electronic excitation energy, stability, and reactivity parameters. Taken together, these results enable to identify the most stable silicon-doped clusters. Regarding electrophilic reactions, Si10P is the most favorable system, while for nucleophilic reactions, none of the doped clusters resulted in higher stability.
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Affiliation(s)
- Gabriel F S Fernandes
- Departamento de Química , Instituto Tecnológico de Aeronáutica , São José dos Campos , SP 12228-900 , Brasil
| | - Max Pinheiro Júnior
- Departamento de Química , Instituto Tecnológico de Aeronáutica , São José dos Campos , SP 12228-900 , Brasil
| | - Francisco B C Machado
- Departamento de Química , Instituto Tecnológico de Aeronáutica , São José dos Campos , SP 12228-900 , Brasil
| | - Luiz F A Ferrão
- Departamento de Química , Instituto Tecnológico de Aeronáutica , São José dos Campos , SP 12228-900 , Brasil
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25
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Die D, Shen XY, Song CY, Du Q. The puzzling optical-absorption and photoelectron spectra of neutral and anionic Ag 8 clusters. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 206:535-537. [PMID: 30179796 DOI: 10.1016/j.saa.2018.08.056] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 08/27/2018] [Indexed: 06/08/2023]
Abstract
The optical absorption and photoelectron spectra (PES) of neutral and anionic Ag8 clusters have been studied using the particle-swarm optimization technique and time-dependent density functional theory. The results demonstrate that the enigmatic optical-absorption spectrum of neutral Ag8 cluster is derived from the ground state structure with Td symmetry rather than the almost degenerate isomer with D2d symmetry. The transitions at 3.57-3.65 eV should be ascribed to the neutral fragment cluster Ag7. Meantime, the optical-absorption and PES of neutral and anionic Ag8 cluster are for the first time given a reasonable unified explanation.
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Affiliation(s)
- Dong Die
- School of Science, Xihua University, Chengdu 610039, China.
| | - Xu-Ying Shen
- School of Science, Xihua University, Chengdu 610039, China
| | - Chong-Yao Song
- School of Science, Xihua University, Chengdu 610039, China
| | - Quan Du
- School of Science, Xihua University, Chengdu 610039, China
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26
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Liu Y, Yang J, Cheng L. Structural Stability and Evolution of Scandium-Doped Silicon Clusters: Evolution of Linked to Encapsulated Structures and Its Influence on the Prediction of Electron Affinities for ScSin (n = 4–16) Clusters. Inorg Chem 2018; 57:12934-12940. [DOI: 10.1021/acs.inorgchem.8b02159] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yuming Liu
- School of Chemical Engineering, Inner Mongolia University of Technology, and Inner Mongolia Key Laboratory of Theoretical and Computational Chemistry Simulation, Hohhot 010051, People’s Republic of China
| | - Jucai Yang
- School of Chemical Engineering, Inner Mongolia University of Technology, and Inner Mongolia Key Laboratory of Theoretical and Computational Chemistry Simulation, Hohhot 010051, People’s Republic of China
- School of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot 010051, People’s Republic of China
| | - Lin Cheng
- School of Chemical Engineering, Inner Mongolia University of Technology, and Inner Mongolia Key Laboratory of Theoretical and Computational Chemistry Simulation, Hohhot 010051, People’s Republic of China
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27
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Li CG, Gao JH, Zhang J, Song WT, Liu SQ, Gao SZ, Ren BZ, Hu YF. Structures, stabilities and electronic properties of boron-doped silicon clusters B 3Si n ( n=1–17) and their anions. Mol Phys 2018. [DOI: 10.1080/00268976.2018.1516897] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Cheng-Gang Li
- College of Physics and Electronic Engineering, Quantum Materials Research Center, Zhengzhou Normal University, Zhengzhou, People’s Republic of China
- School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou, People’s Republic of China
| | - Jin-Hai Gao
- College of Physics and Electronic Engineering, Quantum Materials Research Center, Zhengzhou Normal University, Zhengzhou, People’s Republic of China
| | - Jie Zhang
- College of Physics and Electronic Engineering, Quantum Materials Research Center, Zhengzhou Normal University, Zhengzhou, People’s Republic of China
| | - Wan-Ting Song
- College of Physics and Electronic Engineering, Quantum Materials Research Center, Zhengzhou Normal University, Zhengzhou, People’s Republic of China
| | - Shui-Qing Liu
- College of Physics and Electronic Engineering, Quantum Materials Research Center, Zhengzhou Normal University, Zhengzhou, People’s Republic of China
| | - Si-Zhuo Gao
- College of Physics and Electronic Engineering, Quantum Materials Research Center, Zhengzhou Normal University, Zhengzhou, People’s Republic of China
| | - Bao-Zeng Ren
- School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou, People’s Republic of China
| | - Yan-Fei Hu
- School of Physics and Electronic Engineering, Sichuan University of Science & Engineering, Zigong, People’s Republic of China
- National Key Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang, People’s Republic of China
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28
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Nhat PV, Tai TB. Electronic structure of coinage metal clusters M20 (M = Cu, Ag, Au) from density functional calculations and the phenomenological shell model. Chem Phys Lett 2018. [DOI: 10.1016/j.cplett.2018.05.077] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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Soleimani‐Amiri S, Koohi M, Azizi Z. Characterization of nonsegregated C
17
Si
3
heterofullerenic isomers using density functional theory method. J CHIN CHEM SOC-TAIP 2018. [DOI: 10.1002/jccs.201800163] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - Maryam Koohi
- Young Researchers and Elites Club, North Tehran BranchIslamic Azad University Tehran Iran
| | - Zahra Azizi
- Department of Chemistry, Karaj BranchIslamic Azad University Karaj Iran
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30
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Elucidation of the molecular and electronic structures of some magic silver clusters Ag n (n = 8, 18, 20). J Mol Model 2018; 24:209. [PMID: 30022315 DOI: 10.1007/s00894-018-3730-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 06/19/2018] [Indexed: 01/08/2023]
Abstract
Density functional theory (DFT) calculations were carried out to explore the geometric, spectroscopic, and electronic properties of three magic silver clusters Agn (n = 8, 18, and 20) in detail. The computed results show that the global minima of these clusters are compact, near-spherical structures, while other low-lying isomers exhibit oblate or prolate shapes. Vertical ionization energies for the low-lying isomers were also computed and assigned with respect to available experimental values. Although several isomers were predicted to have similar energies, their electronic and vibrational signatures were quite distinctive, meaning that they could be used as fingerprint signals to distinguish between isomers. In addition, the electronic structures of these systems were explored using the phenomenological shell model. Calculations for the coinage metal clusters M20 (M = Cu, Ag, Au) indicated that the structures and properties of the Ag cluster are similar to those of the Cu cluster in that both Cu20 and Ag20 prefer a compact structure whereas Au20 prefers to adopt a tetrahedral form. Graphical abstract Shell Orbitals of Ag8 Cluster.
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31
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Li CG, Zhou JC, Hu YF, Ren BZ, Bai JT, Hu XK, Yang W. Computational Studies on the ScnNm (n + m=10) Clusters: Structure, Electronic and Vibrational Properties. J CLUST SCI 2018. [DOI: 10.1007/s10876-018-1352-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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32
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Ye T, Luo CG, Xu B, Zhang S, Song HZ, Li GQ. Probing the geometries and electronic properties of charged Zr2Si n q (n = 1–12, q = ±1) clusters. Struct Chem 2018. [DOI: 10.1007/s11224-017-1011-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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33
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Xiong R, Die D, Xu YG, Zheng BX, Fu YC. Probing the structural, electronic and magnetic properties of AgnSc (n = 1–16) clusters. Phys Chem Chem Phys 2018; 20:15824-15834. [DOI: 10.1039/c8cp02605j] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The structural, electronic and magnetic properties of AgnSc (n = 1–16) clusters have been studied on the basis of density functional theory and the CALYPSO structure prediction method.
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Affiliation(s)
- Ran Xiong
- School of Science
- Xihua University
- Chengdu 610039
- China
| | - Dong Die
- School of Science
- Xihua University
- Chengdu 610039
- China
| | - Yong-Gen Xu
- School of Science
- Xihua University
- Chengdu 610039
- China
| | - Ben-Xia Zheng
- School of Science
- Xihua University
- Chengdu 610039
- China
| | - Yao-Chun Fu
- School of Science
- Xihua University
- Chengdu 610039
- China
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34
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Xiong R, Die D, Xiao L, Xu YG, Shen XY. Probing the Structural, Electronic, and Magnetic Properties of Ag n V (n = 1-12) Clusters. NANOSCALE RESEARCH LETTERS 2017; 12:625. [PMID: 29247393 PMCID: PMC5732125 DOI: 10.1186/s11671-017-2394-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Accepted: 11/30/2017] [Indexed: 05/12/2023]
Abstract
The structural, electronic, and magnetic properties of Ag n V (n = 1-12) clusters have been studied using density functional theory and CALYPSO structure searching method. Geometry optimizations manifest that a vanadium atom in low-energy AgnV clusters favors the most highly coordinated location. The substitution of one V atom for an Ag atom in Ag n + 1 (n ≥ 5) cluster modifies the lowest energy structure of the host cluster. The infrared spectra, Raman spectra, and photoelectron spectra of Ag n V (n = 1-12) clusters are simulated and can be used to determine the most stable structure in the future. The relative stability, dissociation channel, and chemical activity of the ground states are analyzed through atomic averaged binding energy, dissociation energy, and energy gap. It is found that V atom can improve the stability of the host cluster, Ag2 excepted. The most possible dissociation channels are Ag n V = Ag + Ag n - 1V for n = 1 and 4-12 and Ag n V = Ag2 + Ag n - 2V for n = 2 and 3. The energy gap of Ag n V cluster with odd n is much smaller than that of Ag n + 1 cluster. Analyses of magnetic property indicate that the total magnetic moment of Ag n V cluster mostly comes from V atom and varies from 1 to 5 μ B. The charge transfer between V and Ag atoms should be responsible for the change of magnetic moment.
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Affiliation(s)
- Ran Xiong
- School of Science, Xihua University, Chengdu, 610039 China
| | - Dong Die
- School of Science, Xihua University, Chengdu, 610039 China
| | - Lu Xiao
- School of Science, Xihua University, Chengdu, 610039 China
| | - Yong-Gen Xu
- School of Science, Xihua University, Chengdu, 610039 China
| | - Xu-Ying Shen
- School of Science, Xihua University, Chengdu, 610039 China
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35
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Structural, Relative Stable, and Electronic Properties of PbnSnn (n = 2–12) Clusters were Investigated Using Density Functional Theory. J CLUST SCI 2017. [DOI: 10.1007/s10876-017-1242-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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36
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van der Tol J, Jia D, Li Y, Chernyy V, Bakker JM, Nguyen MT, Lievens P, Janssens E. Structural assignment of small cationic silver clusters by far-infrared spectroscopy and DFT calculations. Phys Chem Chem Phys 2017; 19:19360-19368. [DOI: 10.1039/c7cp03335d] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The structures of cationic silver clusters Agn+ (n = 3–13) are investigated by comparing measured far-IR photodissociation spectra of cluster–argon complexes with calculated harmonic vibrational spectra.
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Affiliation(s)
- Johan van der Tol
- Laboratory of Solid State Physics and Magnetism
- KU Leuven
- B-3001 Leuven
- Belgium
| | - Dewei Jia
- Laboratory of Solid State Physics and Magnetism
- KU Leuven
- B-3001 Leuven
- Belgium
| | - Yejun Li
- Laboratory of Solid State Physics and Magnetism
- KU Leuven
- B-3001 Leuven
- Belgium
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process
| | - Valeriy Chernyy
- Radboud University
- Institute for Molecules and Materials
- FELIX Laboratory
- 6525 ED Nijmegen
- The Netherlands
| | - Joost M. Bakker
- Radboud University
- Institute for Molecules and Materials
- FELIX Laboratory
- 6525 ED Nijmegen
- The Netherlands
| | | | - Peter Lievens
- Laboratory of Solid State Physics and Magnetism
- KU Leuven
- B-3001 Leuven
- Belgium
| | - Ewald Janssens
- Laboratory of Solid State Physics and Magnetism
- KU Leuven
- B-3001 Leuven
- Belgium
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37
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Zhang HR, Zhao YR, Gao R, Hu YF. Insights into the structures, stabilities, electronic and magnetic properties of X2Aun (X = La, Y, and Sc; n = 1–9) clusters: comparison with pure gold clusters. Mol Phys 2016. [DOI: 10.1080/00268976.2016.1259666] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Hai-Rong Zhang
- School of Electrical and Electronic Engineering, Baoji University of Arts and Sciences, Baoji, China
| | - Ya-Ru Zhao
- Institute of Physics & Optoelectronics Technology, Baoji University of Arts and Sciences, Baoji, China
| | - Rui Gao
- School of Electrical and Electronic Engineering, Baoji University of Arts and Sciences, Baoji, China
| | - Yan-Fei Hu
- Institute of Science, Sichuan University of Science & Engineering, Zigong, China
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38
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Structural, Energetic, and Magnetic Properties of Ag $$_{n-m}$$ n - m Rh $$_{m}$$ m and Ag $$_{m}$$ m Rh $$_{n-m}$$ n - m Clusters with $$n \le 20$$ n ≤ 20 and $$m=0,1$$ m = 0 , 1. J CLUST SCI 2016. [DOI: 10.1007/s10876-016-1003-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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39
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Xing X, Hermann A, Kuang X, Ju M, Lu C, Jin Y, Xia X, Maroulis G. Insights into the geometries, electronic and magnetic properties of neutral and charged palladium clusters. Sci Rep 2016; 6:19656. [PMID: 26794267 PMCID: PMC4726383 DOI: 10.1038/srep19656] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 12/16/2015] [Indexed: 12/26/2022] Open
Abstract
We performed an unbiased structure search for low-lying energetic minima of neutral and charged palladium PdnQ (n = 2–20, Q = 0, + 1 and –1) clusters using CALYPSO method in combination with density functional theory (DFT) calculations. The main candidates for the lowest energy neutral, cationic and anionic clusters are identified, and several new candidate structures for the cationic and anionic ground states are obtained. It is found that the ground state structures of small palladium clusters are more sensitive to the charge states. For the medium size Pdn0/+/– (n = 16–20) clusters, a fcc-like growth behavior is found. The structural transition from bilayer-like structures to cage-like structures is likely to occur at n = 14 for the neutral and cationic clusters. In contrast, for the anionic counterparts, the structural transition occurs at Pd13–. The photoelectron spectra (PES) of palladium clusters are simulated based on the time-dependent density functional theory (TD-DFT) method and compared with the experimental data. The good agreement between the experimental PES and simulated spectra provides us unequivocal structural information to fully solve the global minimum structures, allowing for new molecular insights into the chemical interactions in the Pd cages.
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Affiliation(s)
- Xiaodong Xing
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China.,Department of Physics, Nanyang Normal University, Nanyang 473061, China
| | - Andreas Hermann
- Centre for Science at Extreme Conditions and SUPA, School of Physics and Astronomy, The University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom
| | - Xiaoyu Kuang
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
| | - Meng Ju
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
| | - Cheng Lu
- Department of Physics, Nanyang Normal University, Nanyang 473061, China.,Beijing Computational Science Research Center, Beijing 100084, China
| | - Yuanyuan Jin
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
| | - Xinxin Xia
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
| | - George Maroulis
- Department of Chemistry, University of Patras, GR-26500 Patras, Greece
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Munoz F, Varas A, Rogan J, Valdivia JA, Kiwi M. Au13−nAgn clusters: a remarkably simple trend. Phys Chem Chem Phys 2015; 17:30492-8. [DOI: 10.1039/c5cp05664k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The planar to three dimensional transition of Au13−nAgn clusters is investigated.
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Affiliation(s)
- Francisco Munoz
- Departamento de Física
- Facultad de Ciencias
- Universidad de Chile
- Santiago
- Chile 7800024
| | - Alejandro Varas
- Departamento de Física
- Facultad de Ciencias
- Universidad de Chile
- Santiago
- Chile 7800024
| | - José Rogan
- Departamento de Física
- Facultad de Ciencias
- Universidad de Chile
- Santiago
- Chile 7800024
| | | | - Miguel Kiwi
- Departamento de Física
- Facultad de Ciencias
- Universidad de Chile
- Santiago
- Chile 7800024
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