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Trang NTB, Dang MT, Si NT, Thao TTN, Thao PTB, Nguyen MT, Nhat PV. The smallest triple-ring tubular gold clusters M 2@Au 15 with M = Mo, W: stability, electronic properties and nonlinear optical response. Phys Chem Chem Phys 2024; 26:21493-21503. [PMID: 39081057 DOI: 10.1039/d4cp00711e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2024]
Abstract
The smallest triple ring tube-like gold clusters M2@Au15q with M = Mo, W and q = 1, 0, -1 are reported for the first time. Incorporation of an M2 dimer results in a remarkable modification of both atomic and electronic structures of the gold host. While the bare Au15 cluster exhibits a 3D cage shape, the doubly doped clusters M2@Au15 in all charge states are found to prefer a tubular form composed of three five-membered Au rings in an anti-prism arrangement and stabilized by an M2 unit placed inside the tube-like Au15 gold framework. The equilibrium geometry of both M2@Au15 and M2@Au15- is not much modified upon electron detachment from or attachment to their pure gold counterpart. The anion M2@Au15- with 28 itinerant electrons establishes an electron shell configuration of 1S21P61D102S21F8, in which the 1F shell splits into four different sub-levels. These stable clusters are thus not magic. Computed results on the first and second hyper-polarizability parameters of the doped clusters show a strong dependence on the charge. Overall, the neutral M2@Au15 is found to exhibit a particularly strong nonlinear optical (NLO) response. These clusters can also be extended to 1D nanowires, providing helpful guidance for the design of novel gold-based nanowires with rich optoelectronic properties.
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Affiliation(s)
| | | | - Nguyen Thanh Si
- Institute of Environmental Science and Technology, Tra Vinh University, Tra Vinh, Vietnam
| | | | | | - Minh Tho Nguyen
- Laboratory for Chemical Computation and Modeling, Institute for Computational Science and Artificial Intelligence, Van Lang University, Ho Chi Minh City, Vietnam.
- Faculty of Applied Technology, School of Technology, Van Lang University, Ho Chi Minh City, Vietnam
| | - Pham Vu Nhat
- Molecule and Materials Modeling Laboratory and Department of Chemistry, Can Tho University, Can Tho, Vietnam.
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2
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SnAu clusters as detectors of CO and NO gases: A DFT study. Chem Phys 2023. [DOI: 10.1016/j.chemphys.2022.111726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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3
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Mohan AT, Ghosh P. Low cost bimetallic AuCu 3 tetramer on Ti 2CO 2 MXene as an efficient catalyst for CO oxidation: A theoretical prediction. Phys Chem Chem Phys 2022; 24:19512-19520. [DOI: 10.1039/d2cp02787a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Abatement of CO, due to its poisonous nature, is an extensively researched topic. Oxidation to CO2 is one of the strategies deployed and finds application in automobiles and fuel cells....
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4
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Hussain R, Saeed M, Mehboob MY, Khan SU, Usman Khan M, Adnan M, Ahmed M, Iqbal J, Ayub K. Density functional theory study of palladium cluster adsorption on a graphene support. RSC Adv 2020; 10:20595-20607. [PMID: 35517764 PMCID: PMC9054311 DOI: 10.1039/d0ra01059f] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 05/18/2020] [Indexed: 11/21/2022] Open
Abstract
The geometric, thermodynamic and electronic properties of Pd–graphene nanocomposites are comprehensively studied through quantum mechanical methods. Geometries of these clusters are optimized with the well-calibrated Minnesota functional M06-2X. The adsorption energies calculated at the M06-2X/LANL2DZ level show better agreement with those calculated from MP2/ANO-RCC-VDZP. Two different representative models for graphene, coronene and hexabenzocoronene, are used. The adsorption energies analysis reveals that the interaction energies increase with the size of the adsorbed cluster. However, for Pdn/hexabenzocoronene, the interaction energies show a sudden drop at Pd8/hexabenzocoronene. The difference in behavior between the interaction energies of Pdn/hexabenzocoronene and Pdn/coronene is attributed to the edge effect present in coronene. The electronic properties, including highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO), Fermi level, molecular electrostatic potential (MEP), dipole moment, vertical ionization potential (VIP), vertical electron affinity (VEA), chemical hardness (η), softness (S) and chemical potential (μ) are studied. The VIP and VEA reveal that Pdn/coronene clusters are stable in nature with the least reactivity. The HOMO–LUMO energy gaps are reduced with the increase in cluster size. The electronic properties show irregular trends, where the most favorable electronic properties are obtained for Pd7/coronene and Pd10/coronene. The geometric, thermodynamic and electronic properties of Pd–graphene nanocomposites are comprehensively studied through quantum mechanical methods.![]()
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Affiliation(s)
- Riaz Hussain
- Department of Chemistry
- University of Okara
- Okara 56300
- Pakistan
| | - Muhammad Saeed
- Department of Chemistry
- Government College University
- Faisalabad 38000
- Pakistan
| | | | - Saif Ullah Khan
- Department of Chemistry
- Government College University
- Faisalabad 38000
- Pakistan
| | | | - Muhammad Adnan
- College of Natural Sciences
- Department of Chemistry
- Chosun University
- South Korea
| | | | - Javed Iqbal
- Department of Chemistry
- University of Agriculture
- Faisalabad 38000
- Pakistan
| | - Khurshid Ayub
- Department of Chemistry
- COMSATS Institute of Information Technology
- Abbottabad
- Pakistan
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5
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Li G, Chen X, Yang H, Xu B, Yang B, Liu D. The Density Functional Theory Investigation on the Structural, Relative Stable and Electronic Properties of Bimetallic PbnSbn (n = 2–12) Clusters. J CLUST SCI 2018. [DOI: 10.1007/s10876-018-1450-y] [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]
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6
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Zhidu Chen, Ma D, Liu G, Xia Q. DFT Calculations of Structure and Properties of Asymmetric Clusters (HClInN3)n (n = 1–6). RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2018. [DOI: 10.1134/s0036024418080344] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Liu M, Li N, He Y, Ge Y, Song G. Dually emitting gold-silver nanoclusters as viable ratiometric fluorescent probes for cysteine and arginine. Mikrochim Acta 2018; 185:147. [PMID: 29594587 DOI: 10.1007/s00604-018-2674-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 01/11/2018] [Indexed: 11/28/2022]
Abstract
Glutathione coated gold and silver nanoclusters (GSH-Au/AgNCs) were synthesized by one-pot reduction methods and are found to be viable fluorescent nanoprobes for cysteine (Cys) and arginine (Arg), with good selectivity over other amino acids. The GSH-Au/AgNCs have two emissions at 616 nm and 412 nm when excited at 360 nm. With the increased concentration of Cys, the ratio of the emission intensities (I616/I412) linearly decreases with Cys in concentration ranging from 0.05 to 10 μM and from 10 to 50 μM, respectively. With increased concentrations of Arg, the ratio of I616/I412 linearly decreases with Arg concentration ranging from 0 to 50 μM and from 50 to 100 μM, respectively. The probe was applied to the determination of Cys and Arg in spiked samples of serum and urine where it gave good recoveries. Graphical abstract Glutathione-coated gold and silver nanoclusters (GSH-Au/AgNCs) were synthesized by one-pot reduction and are found to be viable fluorescent nanoprobes for cysteine (Cys) and arginine (Arg).
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Affiliation(s)
- Mingwang Liu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Wuhan, 430062, China
| | - Na Li
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Wuhan, 430062, China
| | - Yu He
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Wuhan, 430062, China. .,Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, China. .,Hubei Province Key Laboratory of Regional Development and Environment Response, Wuhan, 430062, China.
| | - Yili Ge
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Wuhan, 430062, China.,Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, China
| | - Gongwu Song
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Wuhan, 430062, China.,Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, China
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8
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Pillegowda M, Periyasamy G. Influence of Ionic Liquid Solvation on Various Size Homo- and Heterometallic Clusters [M’ m
M n
] (M and M’= Au, Cu, Ag, Ni, Pd and Pt). ChemistrySelect 2017. [DOI: 10.1002/slct.201701889] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Ganga Periyasamy
- Department of Chemistry; Bangalore University; Bangalore- 560001 India
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9
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Ranjan P, Chakraborty T, Kumar A. Computational Investigation of Cationic, Anionic and Neutral Ag2AuN (N = 1–7) Nanoalloy Clusters. PHYSICAL SCIENCES REVIEWS 2017. [DOI: 10.1515/psr-2016-0112] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractThe study of bimetallic nanoalloy clusters is of immense importance due to their diverse applications in the field of science and engineering. A deep theoretical insight is required to explain the physico-chemical properties of such compounds. Among such nanoalloy clusters, the compound formed between Ag and Au has received a lot of attention because of their marked electronic, catalytic, optical and magnetic properties. Density Functional Theory (DFT) is one of the most successful approaches of quantum mechanics to study the electronic properties of materials. Conceptual DFT-based descriptors have turned to be indispensable tools for analysing and correlating the experimental properties of compounds. In this report, we have investigated the ground state configurations and physico-chemical properties of Ag2AuNλ(N= 1–7,λ=±1, 0) nanoalloy clusters invoking DFT methodology. Our computed data exhibits interesting odd-even oscillation behaviour. A close agreement between experimental and our computed bond length supports our theoretical analysis.
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10
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Li G, Chen X, Zhou Z, Wang F, Yang H, Yang J, Xu B, Yang B, Liu D. Theoretical insights into the structural, relative stable, electronic, and gas sensing properties of PbnAun (n = 2–12) clusters: a DFT study. RSC Adv 2017. [DOI: 10.1039/c7ra09286e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
The structural, relative stable and electronic properties of PbnAun (n = 2–12) clusters are the first time to be reported, and PbnAun (n = 4, 6, 8) clusters may serve as gas sensors.
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Affiliation(s)
- Gaofeng Li
- National Engineering Laboratory for Vacuum Metallurgy
- Kunming University of Science and Technology
- Kunming 650093
- PR China
- Yunnan Provincial Key Laboratory for Nonferrous Vacuum Metallurgy
| | - Xiumin Chen
- State Key Laboratory of Complex Nonferrous Metal Resources Clear Utilization
- Kunming University of Science and Technology
- Kunming 650093
- PR China
- National Engineering Laboratory for Vacuum Metallurgy
| | - Zhiqiang Zhou
- State Key Laboratory of Complex Nonferrous Metal Resources Clear Utilization
- Kunming University of Science and Technology
- Kunming 650093
- PR China
- National Engineering Laboratory for Vacuum Metallurgy
| | - Fei Wang
- National Engineering Laboratory for Vacuum Metallurgy
- Kunming University of Science and Technology
- Kunming 650093
- PR China
- Yunnan Provincial Key Laboratory for Nonferrous Vacuum Metallurgy
| | - Hongwei Yang
- National Engineering Laboratory for Vacuum Metallurgy
- Kunming University of Science and Technology
- Kunming 650093
- PR China
- Yunnan Provincial Key Laboratory for Nonferrous Vacuum Metallurgy
| | - Jia Yang
- National Engineering Laboratory for Vacuum Metallurgy
- Kunming University of Science and Technology
- Kunming 650093
- PR China
- Yunnan Provincial Key Laboratory for Nonferrous Vacuum Metallurgy
| | - Baoqiang Xu
- National Engineering Laboratory for Vacuum Metallurgy
- Kunming University of Science and Technology
- Kunming 650093
- PR China
- Yunnan Provincial Key Laboratory for Nonferrous Vacuum Metallurgy
| | - Bin Yang
- National Engineering Laboratory for Vacuum Metallurgy
- Kunming University of Science and Technology
- Kunming 650093
- PR China
- Yunnan Provincial Key Laboratory for Nonferrous Vacuum Metallurgy
| | - Dachun Liu
- National Engineering Laboratory for Vacuum Metallurgy
- Kunming University of Science and Technology
- Kunming 650093
- PR China
- Yunnan Provincial Key Laboratory for Nonferrous Vacuum Metallurgy
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11
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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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12
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Gogol’ VV, Pichugina DA, Kuz’menko NE. Adsorption of carbon oxide on tetrahedral bimetallic gold–copper clusters. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2016. [DOI: 10.1134/s0036024416120128] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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13
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Insights into the structural, electronic and magnetic properties of V-doped copper clusters: comparison with pure copper clusters. Sci Rep 2016; 6:31978. [PMID: 27534599 PMCID: PMC4989221 DOI: 10.1038/srep31978] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 08/01/2016] [Indexed: 11/23/2022] Open
Abstract
The structural, electronic and magnetic properties of Cun+1 and CunV (n = 1–12) clusters have been investigated by using density functional theory. The growth behaviors reveal that V atom in low-energy CunV isomer favors the most highly coordinated position and changes the geometry of the three-dimensional host clusters. The vibrational spectra are predicted and can be used to identify the ground state. The relative stability and chemical activity of the ground states are analyzed through the binding energy per atom, energy second-order difference and energy gap. It is found that that the stability of CunV (n ≥ 8) is higher than that of Cun+1. The substitution of a V atom for a Cu atom in copper clusters alters the odd-even oscillations of stability and activity of the host clusters. The vertical ionization potential, electron affinity and photoelectron spectrum are calculated and simulated for all of the most stable clusters. Compare with the experimental data, we determine the ground states of pure copper clusters. The magnetism analyses show that the magnetic moments of CunV clusters are mainly localized on the V atom and decease with the increase of cluster size. The magnetic change is closely related to the charge transfer between V and Cu atoms.
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14
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Li CG, Yuan YQ, Hu YF, Zhang J, Tang YN, Ren BZ. Density functional theory study of the structures and electronic properties of copper and sulfur doped copper clusters. COMPUT THEOR CHEM 2016. [DOI: 10.1016/j.comptc.2016.01.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Pillegowda M, Periyasamy G. DFT studies on the influence of ligation on optical and redox properties of bimetallic [Au4M2] clusters. RSC Adv 2016. [DOI: 10.1039/c6ra14886g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Computational studies have been employed to understand the lowest energy conformers and the properties of bare [Au4M2] and ligated [Au4M2(SCH3)6], [Au4M2(PH3)6]2+ clusters in both gas phase and implicit solvent media.
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Affiliation(s)
- Manohar Pillegowda
- Department of Chemistry
- Central College Campus
- Bangalore University
- Bangalore-560001
- India
| | - Ganga Periyasamy
- Department of Chemistry
- Central College Campus
- Bangalore University
- Bangalore-560001
- India
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16
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Zhao YR, Qian Y, Zhang MG, Hu YF. Evolution of structures, stabilities, and electronic properties of anionic [AunRb]−(n= 1–10) clusters: comparison with pure gold clusters. Mol Phys 2015. [DOI: 10.1080/00268976.2015.1044480] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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17
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Polynskaya YG, Pichugina DA, Kuz’menko NE. Correlation between electronic properties and reactivity toward oxygen of tetrahedral gold–silver clusters. COMPUT THEOR CHEM 2015. [DOI: 10.1016/j.comptc.2014.12.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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18
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Density Functional Study of Molecular Hydrogen Adsorption on Small Gold–Copper Binary Clusters. J CLUST SCI 2015. [DOI: 10.1007/s10876-015-0848-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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19
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Zhao S, Tian X, Liu J, Ren Y, Wang J. Density functional study of molecular nitrogen adsorption on gold-copper and gold-silver binary clusters. J Mol Model 2014; 20:2467. [PMID: 25287764 DOI: 10.1007/s00894-014-2467-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2014] [Accepted: 09/14/2014] [Indexed: 11/29/2022]
Abstract
Density functional theory calculations were performed to investigate the adsorption behaviors of nitrogen molecule on small bimetallic AunCum and AunAgm clusters, with n + m ≤ 5. In all cases the N2 forms a linear or quasi-linear M-N-N structure (M = Au, Cu or Ag). The adsorption energies of N2 on pure metal clusters follow the order CunN2 > AunN2 > AgnN2, which is due to the weaker orbital interaction between silver and N2. N2 prefers to bind to a copper atom in AunCumN2 complexes and prefers to bind to a silver atom in AunAgmN2 complexes. The combination of Cu atoms into Aun clusters makes the cluster more reactive toward N2 while the combination of Ag atoms into Aun clusters makes the cluster less reactive toward N2. The electrostatic interaction is strengthened while the back-donation from metal to N2 is reduced in bimetallic cluster nitrides, as compared to the mono cluster nitrides. The N-N stretching frequencies are all red-shifted upon adsorption and the M-N stretching frequencies are highly correlated to the atoms to which the N is attached.
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Affiliation(s)
- Shuang Zhao
- School of Chemical Engineering, Henan University of Science and Technology, Luoyang, Henan, 471000, People's Republic of China
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20
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Geometries, stabilities and electronic properties of beryllium-silicon Be₂Si(n) clusters. J Mol Model 2014; 20:2242. [PMID: 24777318 DOI: 10.1007/s00894-014-2242-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2014] [Accepted: 04/08/2014] [Indexed: 10/25/2022]
Abstract
The equilibrium geometries, growth patterns, stabilities, and electronic properties of bimetallic Be₂Si(n) (n = 1-11) clusters are systematically investigated at the B3LYP/6-311G(d) level of theory. Harmonic vibrational analysis has been performed to assure that the optimized geometries are stable. The optimized results suggest that the three-dimensional structures are observed for the most stable isomers of Be₂Si(n) clusters when n > 2. The calculated vertical ionization potential for the lowest-energy isomers are comparable to the experimental values of Si(n+2). According to the averaged binding energy, fragmentation energy, second-order energy difference and HOMO-LUMO gaps calculations, we identify that the Be₂Si₂ and Be₂Si₅ clusters are more stable, and Be atoms doping enhance the chemical reactivity of the Si n host. The natural population and natural electron configuration analyses indicate that the Be atoms possess positive charge at n = 1-5 but negative charge at n = 6-11. The chemical hardness of Be₂Si(n) clusters show three local maxima at n = 2, 5, and 9, whereas three local minima are found for the corresponding chemical potential, meaning these clusters are more stable than their neighboring cluster sizes.
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21
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Tafoughalt M, Samah M. Structural properties and relative stability of silver-doped gold clusters AgAun−1 (n=3–13): Density functional calculations. COMPUT THEOR CHEM 2014. [DOI: 10.1016/j.comptc.2014.01.023] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Peng J, Shao Y, Liu L, Zhang L, Liu H. Specific recognition of DNA bulge sites by in situ grown fluorescent Ag nanoclusters with high selectivity. Dalton Trans 2014; 43:1534-41. [DOI: 10.1039/c3dt52042k] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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23
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Trivedi R, Dhaka K, Bandyopadhyay D. Study of electronic properties, stabilities and magnetic quenching of molybdenum-doped germanium clusters: a density functional investigation. RSC Adv 2014. [DOI: 10.1039/c4ra11825a] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The evolution of electronic structures, properties and stabilities of neutral and cationic molybdenum encapsulated germanium clusters (Mo@Gen, n = 1 to 20) has been investigated.
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Affiliation(s)
- Ravi Trivedi
- Department of Physics
- Birla Institute of Technology and Science
- Pilani, India
| | - Kapil Dhaka
- Department of Physics
- Birla Institute of Technology and Science
- Pilani, India
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24
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Zhao S, Ren Y, Lu W, Wang J, Yin W. Density functional study of AgnAum and AgnAum+ (n+m⩽5) clusters interaction with a single S atom. COMPUT THEOR CHEM 2013. [DOI: 10.1016/j.comptc.2013.05.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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25
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Yang HW, Lu WC, Zhao LZ, Qin W, Yang WH, Xue XY. Structures and Electronic Properties of the SiAun (n = 17–20) Clusters. J Phys Chem A 2013; 117:2672-7. [DOI: 10.1021/jp3004807] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Huai-Wen Yang
- College of Physical Science and Laboratory of Fiber Materials and Modern Textile, Growing Base for State Key Laboratory, Qingdao University, Qingdao, Shandong 266071, China
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Hua Y, Liu Y, Jiang G, Du J, Chen J. Geometric Transition and Electronic Properties of Titanium-Doped Aluminum Clusters: AlnTi (n = 2–24). J Phys Chem A 2013; 117:2590-7. [DOI: 10.1021/jp309629y] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yawen Hua
- Institute of Atomic and Molecular
Physics, Sichuan University, Chengdu 610065,
China
| | - Yiliang Liu
- College of Electrical
and Information Engineering, Southwest University for Nationalities, Chengdu 610041, China
| | - Gang Jiang
- Institute of Atomic and Molecular
Physics, Sichuan University, Chengdu 610065,
China
| | - Jiguang Du
- College of Physical Science and Technology, Sichuan University, Chengdu 610064, China
| | - Jun Chen
- Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang 621907, China
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Zhao S, Lu W, Ren Y, Ren Y, Wang J, Yin W. Density functional study of NOx binding on small AunCum (n+m≤5) clusters. COMPUT THEOR CHEM 2012. [DOI: 10.1016/j.comptc.2012.05.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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29
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Hu YF, Jiang G, Meng DQ. Ab initiocalculation of geometries, stabilities, and electronic properties for bimetallic Cs2-doped gold clusters: comparison with pure gold clusters. Mol Phys 2012. [DOI: 10.1080/00268976.2012.663940] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Ciccioli A, Gigli G. Study of the Fundamental Units of Novel Semiconductor Materials: Structures, Energetics, and Thermodynamics of the Ge–Sn and Si–Ge–Sn Molecular Systems. J Phys Chem A 2012; 116:7107-22. [DOI: 10.1021/jp300624z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- A. Ciccioli
- Dipartimento di Chimica, Sapienza Università di Roma, Roma, P.le A. Moro 5 00185, Italy
| | - G. Gigli
- Dipartimento di Chimica, Sapienza Università di Roma, Roma, P.le A. Moro 5 00185, Italy
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Ciccioli A, Gigli G, Lauricella M. Experimental and computational investigation of the group 11–group 2 diatomic molecules: First determination of the AuSr and AuBa bond energies and thermodynamic stability of the copper- and silver-alkaline earth species. J Chem Phys 2012; 136:184306. [DOI: 10.1063/1.4711085] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- A Ciccioli
- Dipartimento di Chimica, Sapienza Università di Roma, p.le A. Moro 5, 00185 Roma, Italy.
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Heiles S, Logsdail AJ, Schäfer R, Johnston RL. Dopant-induced 2D-3D transition in small Au-containing clusters: DFT-global optimisation of 8-atom Au-Ag nanoalloys. NANOSCALE 2012; 4:1109-15. [PMID: 22012270 DOI: 10.1039/c1nr11053e] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
A genetic algorithm (GA) coupled with density functional theory (DFT) calculations is used to perform global optimisations for all compositions of 8-atom Au-Ag bimetallic clusters. The performance of this novel GA-DFT approach for bimetallic nanoparticles is tested for structures reported in the literature. New global minimum structures for various compositions are predicted and the 2D-3D transition is located. Results are explained with the aid of an analysis of the electronic density of states. The chemical ordering of the predicted lowest energy isomers are explained via a detailed analysis of the charge separation and mixing energies of the bimetallic clusters. Finally, dielectric properties are computed and the composition and dimensionality dependence of the electronic polarizability and dipole moment is discussed, enabling predictions to be made for future electric beam deflection experiments.
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Affiliation(s)
- Sven Heiles
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Petersenstrasse 20, 64287 Darmstadt, Germany
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Teng BT, Wu FM, Huang WX, Wen XD, Zhao LH, Luo MF. A DFT Study of the Structures of Aux Clusters on a CeO2(111) Surface. Chemphyschem 2012; 13:1261-71. [DOI: 10.1002/cphc.201101007] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Indexed: 11/06/2022]
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Zhao YR, Kuang XY, Shao P, Li CG, Wang SJ, Li YF. A systematic search for the structures, stabilities, and electronic properties of bimetallic Ca₂-doped gold clusters: comparison with pure gold clusters. J Mol Model 2011; 18:1333-43. [PMID: 21748329 DOI: 10.1007/s00894-011-1154-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2011] [Accepted: 06/14/2011] [Indexed: 10/18/2022]
Abstract
The local meta-GGA exchange correlation density functional (TPSS) with a relativistic effective core potential was employed to systematically investigate the geometric structures, stabilities, and electronic properties of bimetallic Ca(2)Au( n ) (n = 1-9) and pure gold Au( n ) (n ≤ 11) clusters. The optimized geometries show that the most stable isomers for Ca(2)Au( n ) clusters have 3D structure when n > 2, and that one Au atom capping the Ca(2)Au( n-1) structure for different-sized Ca(2)Au( n ) (n = 1-9) clusters is the dominant growth pattern. The average atomic binding energies and second-order difference in energies show that the Ca(2)Au(4) isomer is the most stable among the Ca(2)Au( n ) clusters. The same pronounced even-odd alternations are found in the HOMO-LUMO gaps, VIPs, and hardnesses. The polarizabilities of the Ca(2)Au( n ) clusters show an obvious local minimum at n = 4. Moreover, the inverse corrections to the polarizabilities versus the ionization potential and hardness were found for the gold clusters.
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Affiliation(s)
- Ya-Ru Zhao
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
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