1
|
Cai H, Ren Q, Gao Y. Exploring the stable structures of cerium oxide nanoclusters using high-dimensional neural network potential. NANOSCALE ADVANCES 2024; 6:2623-2628. [PMID: 38752131 PMCID: PMC11093274 DOI: 10.1039/d3na01119d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 04/02/2024] [Indexed: 05/18/2024]
Abstract
Cerium clusters have been extensively applied in industry owing to their extraordinary properties for oxygen storage and redox catalytic activities. However, their atomically precise structures have not been studied because of the lack of a reliable method to efficiently sample their complex structures. Herein, we combined a neural network algorithm with density functional theory calculations to establish a high-dimensional potential to search for the global minimums of cerium oxide clusters. Using Ce14O28 as well as its reduced state Ce14O27 and oxidized state Ce14O29 with ultra-small dimensions of ∼1.0 nm as examples, we found that these three clusters adopt pyramid-like structures with the lowest energies, which was obtained by exploring 100 000 configurations in large feasible spaces. Further the neural network potential-enhanced molecular dynamics calculations indicated that these cluster structures are stable at high temperature. The electronic structure analysis suggested that these clusters are highly active and easily lose oxygen. This work demonstrated that neural network potentials can be useful for exploring the stable structures of metal oxide nanoclusters in practical applications.
Collapse
Affiliation(s)
- Huabing Cai
- Department of Chemistry, Shanghai University 99 Shangda Road Shanghai 200444 China
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences Shanghai 201800 China
| | - Qinghua Ren
- Department of Chemistry, Shanghai University 99 Shangda Road Shanghai 200444 China
| | - Yi Gao
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences Shanghai 201800 China
- Phonon Science Research Center for Carbon Dioxide, Shanghai Advanced Research Institute, Chinese Academy of Sciences Shanghai 201210 China
- Key Laboratory of Low-Carbon Conversion Science & Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences Shanghai 201210 China
| |
Collapse
|
2
|
Muñoz-Castro A. N-Heterocyclic carbene derivatives to modify gold superatom characteristics. Tailorable electronic and optical properties of [Au 11(PPh 3) 7LCl 2] + as a cluster from relativistic DFT. Phys Chem Chem Phys 2022; 24:5965-5973. [PMID: 35195620 DOI: 10.1039/d1cp04310b] [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
Atomically precise gold superatoms are useful building blocks whose properties can be tuned by the proper choice of ligands in the protecting ligand layer. Herein, different N-heterocyclic carbene (NHC) derivatives of the prototypical [Au11(PPh3)8Cl2]+ cluster were evaluated by the replacement of a single ligand, which led to isoelectronic [Au11(PPh3)7(NHC)Cl2]+ species, enabling further understanding of the possible changes in the resulting cluster properties. Our results reveal the great variation in the HOMO-LUMO gap and optical features when going from strong to weak σ-donor NHC ligands. The Au11 core retains similar features throughout the series, and the lowest unoccupied orbital (LUMO) is further stabilized, indicating greater π*-NHC character for the weaker σ-donor ligands, which favors directional core-ligand optical charge transfer to a single ligand. The ligand-tailored behavior of the [Au11(PPh3)7LCl2]+ cluster underlies its tunable characteristics, indicating its potential use in novel devices as building blocks of nanostructured materials, which favors further versatility and applications of superatomic clusters.
Collapse
Affiliation(s)
- Alvaro Muñoz-Castro
- Laboratorio de Química Inorgánica y Materiales Moleculares, Facultad de Ingeniería, Universidad Autonoma de Chile, El Llano Subercaseaux 2801, Santiago, Chile.
| |
Collapse
|
3
|
Wei J, Kahlal S, Halet JF, Saillard JY, Muñoz-Castro A. Insight Into the Stability and Electronic and Optical Properties of N-Heterocyclic Carbene Analogues of Halogen/Phosphine-Protected Au 13 Superatomic Clusters. J Phys Chem A 2022; 126:536-545. [PMID: 35044183 DOI: 10.1021/acs.jpca.1c09084] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Atomically precise gold nanoclusters (AuNCs) belong to a relevant area offering useful templates with tunable properties toward functional nanostructures. In this work, we explored the feasible incorporation of N-heterocyclic carbenes (NHCs), as part of the protecting-ligand shell in AuNCs. Our results, which are based on the substitution of phosphine ligands in experimentally characterized AuNCs by NHCs in various eight-electron superatoms Au13 and M4Au9 (M = Cu, Ag), indicate similar electronic structure and stability but somewhat different optical properties. These findings support the feasible obtention of novel targets for explorative synthetic efforts featuring NHC ligands on medium-sized species based on the recurrent Au13 icosahedral core. The hypothetical species appear to be interesting templates for building blocks in nanostructured materials with tuned properties, which encourage experimental exploration of ligand versatility in homo- and heterometallic superatomic clusters.
Collapse
Affiliation(s)
- Jianyu Wei
- Institut des Sciences Chimiques de Rennes (ISCR) - UMR 6226, Université de Rennes, CNRS, F-35000 Rennes, France
| | - Samia Kahlal
- Institut des Sciences Chimiques de Rennes (ISCR) - UMR 6226, Université de Rennes, CNRS, F-35000 Rennes, France
| | - Jean-François Halet
- CNRS-Saint-Gobain-NIMS, IRL 3629, Laboratory for Innovative Key Materials and Structures (LINK), National Institute for Materials Science (NIMS), Tsukuba 305-0044, Japan
| | - Jean-Yves Saillard
- Institut des Sciences Chimiques de Rennes (ISCR) - UMR 6226, Université de Rennes, CNRS, F-35000 Rennes, France
| | - Alvaro Muñoz-Castro
- Grupo de Química Inorgánica y Materiales Moleculares, Facultad de Ingenieria, Universidad Autonoma de Chile, El Llano Subercaseaux 2801, 8910188 Santiago, Chile
| |
Collapse
|
4
|
Sinha B, Goswami T, Paul S, Misra A. Spectral tuning of 11-cis retinal in conjugation with Au14 cluster and concomitant effect on isomerization: A theoretical outlook. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY 2021. [DOI: 10.1016/j.jpap.2021.100051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
|
5
|
Yang L, Gu X, Li B, Niu K, Jin P. Small Amount Makes a Big Difference: Critical ( n - 1)d Valence Orbitals of Heavy Alkaline Earth Metals inside Cage Clusters. Inorg Chem 2021; 60:8621-8630. [PMID: 34096260 DOI: 10.1021/acs.inorgchem.1c00606] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Heavy alkaline earth metals (Aes) are usually considered to engage in chemical bonding by donating the two electrons on ns atomic orbitals (AOs). In this work, a series of typical endohedrally doped cage clusters Ae@cage (Ae = Ca, Sr, Ba; cage = C32, C74, C94, B40, Si20, Sn12, Au16) were thoroughly investigated by means of density functional theory calculations. We found that their occupied molecular orbitals have ∼1 to 14% contributions from Ae-(n - 1)d AOs due to electron back-donation from the cage. Though the amount is small, it is hard to ignore: with the d orbitals, all these endohedral clusters exhibit obviously shortened Ae-cage distances, greatly enhanced encapsulation stabilities, changed highest occupied molecular orbital-lowest unoccupied molecular orbital (HOMO-LUMO) gaps, and much lowered Ae valences far from ideal +2. Evidently, the valence orbitals of Ca/Sr/Ba in these systems should include both ns and (n - 1)d. By disclosing the critical role of unnoticed metal orbitals, our work provides completely new insights into the cluster field.
Collapse
Affiliation(s)
- Le Yang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China
| | - Xiaojiao Gu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China
| | - Bo Li
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China
| | - Kai Niu
- School of Sciences, Tianjin University of Technology and Education, Tianjin 300222, China
| | - Peng Jin
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China
| |
Collapse
|
6
|
Affiliation(s)
- Jijun Zhao
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China
| | - Qiuying Du
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China
| | - Si Zhou
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China
| | - Vijay Kumar
- Center for Informatics, School of Natural Sciences, Shiv Nadar University, NH-91, Tehsil Dadri, Gautam Buddha Nagar 201314, U. P., India
- Dr. Vijay Kumar Foundation, 1969 Sector 4, Gurgaon 122001, Haryana, India
| |
Collapse
|
7
|
Huang P, Jiang Y, Liang T, Wu E, Li J, Hou J. Structural exploration of AuxM− (M = Si, Ge, Sn; x = 9–12) clusters with a revised genetic algorithm. RSC Adv 2019; 9:7432-7439. [PMID: 35519983 PMCID: PMC9061163 DOI: 10.1039/c9ra01019j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Accepted: 02/27/2019] [Indexed: 12/21/2022] Open
Abstract
We used a revised genetic algorithm (GA) to explore the potential energy surface (PES) of AuxM− (x = 9–12; M = Si, Ge, Sn) clusters. The most interesting finding in the structural study of AuxSi− (x = 9–12) is the 3D (Au9Si− and Au10Si−) → quasi-planar 2D (Au11Si− and Au12Si−) structural evolution of the Si-doped clusters, which reflects the competition of Au–Au interactions (forming a 2D structure) and Au–Si interactions (forming a 3D structure). The AuxM− (x = 9–12; M = Ge, Sn) clusters have quasi-planar structures, which suggests a lower tendency of sp3 hybridization and a similarity of electronic structure for the Ge or Sn atom. Au9Si− and Au10Si− have a 3D structure, which can be viewed as being built from Au8Si− and Au9Si− with an extra Au atom bonded to a terminal gold atom, respectively. In contrast, the quasi-planar structures of AuxM− (x = 9–12; M = Ge, Sn) reflect the domination of the Au–Au interactions. Including the spin–orbit (SO) effects is very important to calculate the simulated spectrum (structural fingerprint information) in order to obtain quantitative agreement between theoretical and future experimental PES spectra. We used a revised genetic algorithm (GA) to explore the potential energy surface (PES) of AuxM− (x = 9–12; M = Si, Ge, Sn) clusters.![]()
Collapse
Affiliation(s)
- Ping Huang
- Panzhihua International Research Institute of Vanadium and Titanium
- Panzhihua University
- Panzhihua 617000
- People's Republic of China
| | - Yan Jiang
- Panzhihua International Research Institute of Vanadium and Titanium
- Panzhihua University
- Panzhihua 617000
- People's Republic of China
| | - Tianquan Liang
- College of Environment and Planning
- Liaocheng University
- Liaocheng 252059
- People's Republic of China
| | - Enhui Wu
- Panzhihua International Research Institute of Vanadium and Titanium
- Panzhihua University
- Panzhihua 617000
- People's Republic of China
| | - Jun Li
- Panzhihua International Research Institute of Vanadium and Titanium
- Panzhihua University
- Panzhihua 617000
- People's Republic of China
| | - Jing Hou
- College of Vanadium and Titanium
- Panzhihua University
- Panzhihua 617000
- People's Republic of China
| |
Collapse
|
8
|
Muñoz-Castro A. Potential of N-heterocyclic carbene derivatives from Au13(dppe)5Cl2gold superatoms. Evaluation of electronic, optical and chiroptical properties from relativistic DFT. Inorg Chem Front 2019. [DOI: 10.1039/c9qi00513g] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
N-heterocyclic carbene (NHC) introduction into well-defined atomically precise gold superatoms allows efficient control of structural, optical, chiroptical and emission features of the Au13Cl2core, related to the classical chiral [Au13Cl2(dppe)5]3+nanocluster.
Collapse
Affiliation(s)
- Alvaro Muñoz-Castro
- Laboratorio de Química Inorgánica y Materiales Moleculares
- Facultad de Ingeniería
- Universidad Autonoma de Chile
- Santiago
- Chile
| |
Collapse
|
9
|
|
10
|
|
11
|
Gao Y, Jiang W, Xu D, Wang Z. Localization-vs-Delocalization of 5f Orbitals in Superatom Systems. ADVANCED THEORY AND SIMULATIONS 2018. [DOI: 10.1002/adts.201700038] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yang Gao
- Institute of Atomic and Molecular Physics; Jilin University; Changchun 130012 China
- Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy; Jilin University; Changchun 130012 China
| | - Wanrun Jiang
- Institute of Atomic and Molecular Physics; Jilin University; Changchun 130012 China
- Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy; Jilin University; Changchun 130012 China
| | - Dexuan Xu
- Institute of Atomic and Molecular Physics; Jilin University; Changchun 130012 China
- Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy; Jilin University; Changchun 130012 China
| | - Zhigang Wang
- Institute of Atomic and Molecular Physics; Jilin University; Changchun 130012 China
- Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy; Jilin University; Changchun 130012 China
| |
Collapse
|
12
|
Li HF, Wang HQ. Stabilization of golden cages by encapsulation of a single transition metal atom. ROYAL SOCIETY OPEN SCIENCE 2018; 5:171019. [PMID: 29410813 PMCID: PMC5792890 DOI: 10.1098/rsos.171019] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 11/24/2017] [Indexed: 05/06/2023]
Abstract
Golden cage-doped nanoclusters have attracted great attention in the past decade due to their remarkable electronic, optical and catalytic properties. However, the structures of large golden cage doped with Mo and Tc are still not well known because of the challenges in global structural searches. Here, we report anionic and neutral golden cage doped with a transition metal atom MAu16 (M = Mo and Tc) using Saunders 'Kick' stochastic automation search method associated with density-functional theory (DFT) calculation (SK-DFT). The geometric structures and electronic properties of the doped clusters, MAu16q (M = Mo and Tc; q = 0 and -1), are investigated by means of DFT theoretical calculations. Our calculations confirm that the 4d transition metals Mo and Tc can be stably encapsulated in the Au16- cage, forming three different configurations, i.e. endohedral cages, planar structures and exohedral derivatives. The ground-state structures of endohedral cages C2v Mo@Au16--(a) and C1 Tc@Au16--(b) exhibit a marked stability, as judged by their high binding energy per atom (greater than 2.46 eV), doping energy (0.29 eV) as well as a large HOMO-LUMO gap (greater than 0.40 eV). The predicted photoelectron spectra should aid in future experimental characterization of MAu16- (M = Mo and Tc).
Collapse
Affiliation(s)
| | - Huai-Qian Wang
- College of Engineering, Huaqiao University, Quanzhou, 362021, People's Republic of China
| |
Collapse
|
13
|
Wang J, Xie W, Wang J, Gao Y, Lei J, Zhang RQ, Wang Z. Actinide embedded nearly planar gold superatoms: structural properties and applications in surface-enhanced Raman scattering (SERS). Phys Chem Chem Phys 2018; 20:27523-27527. [DOI: 10.1039/c8cp05350b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Actinide embedded in a gold ring and applications in surface-enhanced Raman scattering (SERS).
Collapse
Affiliation(s)
- Jianpeng Wang
- Institute of Atomic and Molecular Physics, Jilin University
- Changchun 130012
- China
- Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy, Jilin University
- Changchun 130012
| | - Weiyu Xie
- Institute of Atomic and Molecular Physics, Jilin University
- Changchun 130012
- China
- Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy, Jilin University
- Changchun 130012
| | - Jia Wang
- Institute of Atomic and Molecular Physics, Jilin University
- Changchun 130012
- China
- Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy, Jilin University
- Changchun 130012
| | - Yang Gao
- Institute of Atomic and Molecular Physics, Jilin University
- Changchun 130012
- China
- Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy, Jilin University
- Changchun 130012
| | - Jiehong Lei
- Physics and Space Science College, China West Normal University
- Nanchong 637009
- China
| | - Rui-Qin Zhang
- Department of Physics, City University of Hong Kong
- Hong Kong SAR
- P. R. China
- Beijing Computational Science Research Center
- Beijing 100193
| | - Zhigang Wang
- Institute of Atomic and Molecular Physics, Jilin University
- Changchun 130012
- China
- Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy, Jilin University
- Changchun 130012
| |
Collapse
|
14
|
Muñoz-Castro A. Doping the cage. Re@Au11Pt and Ta@Au11Hg, as novel 18-ve trimetallic superatoms displaying a doped icosahedral golden cage. Phys Chem Chem Phys 2017; 19:2459-2465. [DOI: 10.1039/c6cp07519c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Trimetallic superatomic clusters. Theoretical proposal and evaluation of the 18-ve Ta@Au11Hg and Re@Au11Pt clusters.
Collapse
Affiliation(s)
- Alvaro Muñoz-Castro
- Grupo de Química Inorgánica y Materiales Moleculares
- Universidad Autonoma de Chile
- Santiago
- Chile
- Doctorado en Fisicoquímica Molecular
| |
Collapse
|
15
|
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.
Collapse
|
16
|
Yong Y, Li X, Zhou Q, Su X, Li T, Cui H, Lv S. Adsorption of gas molecules on Gd@Aun (n = 14, 15) clusters and their implication for molecule sensors. RSC Adv 2016. [DOI: 10.1039/c6ra01136e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The Gd@Au15 cluster as an excellent gas sensor for NO and NO2 detection.
Collapse
Affiliation(s)
- Yongliang Yong
- College of Physics and Engineering
- Henan University of Science and Technology
- Luoyang 471003
- China
- Department of Physics
| | - Xiaohong Li
- College of Physics and Engineering
- Henan University of Science and Technology
- Luoyang 471003
- China
| | - Qingxiao Zhou
- College of Physics and Engineering
- Henan University of Science and Technology
- Luoyang 471003
- China
| | - Xiangying Su
- College of Physics and Engineering
- Henan University of Science and Technology
- Luoyang 471003
- China
| | - Tongwei Li
- College of Physics and Engineering
- Henan University of Science and Technology
- Luoyang 471003
- China
| | - Hongling Cui
- College of Physics and Engineering
- Henan University of Science and Technology
- Luoyang 471003
- China
| | - Shijie Lv
- College of Physics and Engineering
- Henan University of Science and Technology
- Luoyang 471003
- China
| |
Collapse
|
17
|
Manzoor D, Krishnamurty S, Pal S. Endohedrally doped gold nanocages: efficient catalysts for O2 activation and CO oxidation. Phys Chem Chem Phys 2016; 18:7068-74. [DOI: 10.1039/c5cp05624a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gold nanocages are the most attractive catalytic materials as all the atoms in the cage type clusters reside on the surface, making them available for chemisorption by reacting molecules.
Collapse
Affiliation(s)
- Dar Manzoor
- Theoretical Chemistry Group
- Physical Chemistry Division
- CSIR-National Chemical Laboratory
- Pune-411 008
- India
| | - Sailaja Krishnamurty
- Functional Materials Division
- CSIR-Central Electrochemical Research Institute
- Karaikudi-630 003
- India
| | - Sourav Pal
- Theoretical Chemistry Group
- Physical Chemistry Division
- CSIR-National Chemical Laboratory
- Pune-411 008
- India
| |
Collapse
|
18
|
Joshi K, Krishnamurty S. Behaviour of ‘free-standing’ hollow Au nanocages at finite temperatures: a BOMD study. Mol Phys 2015. [DOI: 10.1080/00268976.2015.1062151] [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]
|
19
|
Gao Y, Chen L, Dai X, Song R, Wang B, Wang Z. A strong charge-transfer effect in surface-enhanced Raman scattering induced by valence electrons of actinide elements. RSC Adv 2015. [DOI: 10.1039/c5ra03408f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The 6d electrons of Ac atom involved in excited transitions induce a strong CT-SERS enhancement which can be tuned by changing the conformation of pyridine-Ac@Au7 complexes.
Collapse
Affiliation(s)
- Yang Gao
- Institute of Atomic and Molecular Physics
- Jilin University
- Changchun
- China
- Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy (Jilin University)
| | - Lei Chen
- Institute of Atomic and Molecular Physics
- Jilin University
- Changchun
- China
- Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy (Jilin University)
| | - Xing Dai
- Institute of Atomic and Molecular Physics
- Jilin University
- Changchun
- China
- Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy (Jilin University)
| | - Ruixia Song
- Institute of Atomic and Molecular Physics
- Jilin University
- Changchun
- China
- Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy (Jilin University)
| | - Bo Wang
- Institute of Atomic and Molecular Physics
- Jilin University
- Changchun
- China
- Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy (Jilin University)
| | - Zhigang Wang
- Institute of Atomic and Molecular Physics
- Jilin University
- Changchun
- China
- Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy (Jilin University)
| |
Collapse
|
20
|
Abstract
The endohedral structures of MAu16− (M = Y, Zr and Nb) nanoclusters.
Collapse
Affiliation(s)
- Huai-Qian Wang
- College of Engineering
- Huaqiao University
- Quanzhou
- China
- Beijing Computational Science Research Center
| | - Hui-Fang Li
- College of Engineering
- Huaqiao University
- Quanzhou
- China
| |
Collapse
|
21
|
Gao Y, Dai X, Kang SG, Jimenez-Cruz CA, Xin M, Meng Y, Han J, Wang Z, Zhou R. Structural and electronic properties of uranium-encapsulated Au₁₄ cage. Sci Rep 2014; 4:5862. [PMID: 25069968 PMCID: PMC5376176 DOI: 10.1038/srep05862] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Accepted: 06/18/2014] [Indexed: 01/25/2023] Open
Abstract
The structural properties of the uranium-encapsulated nano-cage U@Au14 are predicted using density functional theory. The presence of the uranium atom makes the Au14 structure more stable than the empty Au14-cage, with a triplet ground electronic state for U@Au14. Analysis of the electronic structure shows that the two frontier single-occupied molecular orbital electrons of U@Au14 mainly originate from the 5f shell of the U atom after charge transfer. Meanwhile, the bonding orbitals and charge population indicate that the designed U@Au14 nano-cage structure is stabilized by ionocovalent interactions. The current findings provide theoretical basis for future syntheses and further study of actinide doped gold nanoclusters, which might subsequently facilitate applications of such structure in radio-labeling, nanodrug carrier and other biomedical applications.
Collapse
Affiliation(s)
- Yang Gao
- Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, P. R. China
| | - Xing Dai
- Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, P. R. China
| | - Seung-gu Kang
- Computational Biology Center, IBM Thomas J. Watson Research Center, Yorktown Heights, NY 10598
| | | | - Minsi Xin
- Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, P. R. China
| | - Yan Meng
- Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, P. R. China
| | - Jie Han
- Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, P. R. China
| | - Zhigang Wang
- Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, P. R. China
| | - Ruhong Zhou
- 1] Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, P. R. China [2] Computational Biology Center, IBM Thomas J. Watson Research Center, Yorktown Heights, NY 10598 [3] Department of Chemistry, Columbia University, New York, NY 10027
| |
Collapse
|
22
|
Negreiros FR, Barcaro G, Sementa L, Fortunelli A. Concepts in theoretical heterogeneous ultrananocatalysis. CR CHIM 2014. [DOI: 10.1016/j.crci.2013.12.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
23
|
Kim Y, Choi S, Kim WY. Efficient Basin-Hopping Sampling of Reaction Intermediates through Molecular Fragmentation and Graph Theory. J Chem Theory Comput 2014; 10:2419-26. [DOI: 10.1021/ct500136x] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Yeonjoon Kim
- Department
of Chemistry, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Korea
| | - Sunghwan Choi
- Department
of Chemistry, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Korea
| | - Woo Youn Kim
- Department
of Chemistry, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Korea
- KAIST
Institute for NanoCentury, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Korea
| |
Collapse
|
24
|
Li HF, Wang HQ. Probing the stability of neutral and anionic transition-metal-doped golden cage nanoclusters: M@Au16(M = Sc, Ti, V). Phys Chem Chem Phys 2014; 16:244-54. [DOI: 10.1039/c3cp53292e] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|
25
|
Structures and Stabilities of the Metal Doped Gold Nano-Clusters: M@Au 10 (M = W, Mo, Ru, Co). J Inorg Organomet Polym Mater 2014; 24:241-249. [PMID: 24611036 DOI: 10.1007/s10904-013-9995-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The structures and stabilities of a series of endohedral gold clusters containing ten gold atoms M@Au10 (M = W, Mo, Ru, Co) have been determined using density functional theory. The gradient-corrected functional BP86, the Tao-Perdew-Staroverov-Scuseria TPSS meta-GGA functional, and the hybrid density functionals B3LYP and PBE1PBE were employed to calculate the structures, binding energies, adiabatic ionization potentials, and adiabatic electron affinities for these clusters. The LanL2DZ effective core potentials and the corresponding valence basis sets were employed. The M@Au10 (M = W, Mo, Ru, Co) clusters have higher binding energies than an empty Au10 cluster. In addition, the large HOMO-LUMO gaps suggest that the M@Au10 (M = W, Mo, Ru, Co) clusters are all likely to be stable chemically. The ionization potentials and electron affinities for these clusters are very high, and the W@Au10 and Mo@Au10 clusters have electron affinities similar to the super-halogen Al13.
Collapse
|
26
|
Geometries, stabilities, and magnetic properties of AunTi (n=1–9) clusters: A density functional study. COMPUT THEOR CHEM 2013. [DOI: 10.1016/j.comptc.2013.09.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
27
|
Bruma A, Negreiros FR, Xie S, Tsukuda T, Johnston RL, Fortunelli A, Li ZY. Direct atomic imaging and density functional theory study of the Au24Pd1 cluster catalyst. NANOSCALE 2013; 5:9620-9625. [PMID: 23764617 DOI: 10.1039/c3nr01852k] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
In this study we report a direct, atomic-resolution imaging of calcined Au24Pd1 clusters supported on multiwall carbon nanotubes by employing aberration-corrected scanning transmission electron microscopy. Using gold atoms as mass standards, we confirm the cluster size to be 25 ± 2, in agreement with the Au24Pd1(SR)18 precursor used in the synthesis. Concurrently, a Density-Functional/Basin-Hopping computational algorithm is employed to locate the low-energy configurations of free Au24Pd1 cluster. Cage structures surrounding a single core atom are found to be favored, with a slight preference for Pd to occupy the core site. The cluster shows a tendency toward elongated arrangements, consistent with experimental data. The degree of electron transfer from the Pd dopant to Au is quantified through a Löwdin charge analysis, suggesting that Pd may act as an electron promoter to the surrounding Au atoms when they are involved in catalytic reactions.
Collapse
Affiliation(s)
- A Bruma
- Nanoscale Physics Research Laboratory, School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
| | | | | | | | | | | | | |
Collapse
|
28
|
Liu Z, Qin Z, Xie H, Cong R, Wu X, Tang Z. Structure of Au40/−1 in the gas phase: A joint geometry relaxed ab initio calculations and vibrationally resolved photoelectron imaging investigation. J Chem Phys 2013; 139:094306. [DOI: 10.1063/1.4819789] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
|
29
|
Zhao T, Li Y, Wang Q, Jena P. All‐Metal Clusters that Mimic the Chemistry of Halogens. Chemphyschem 2013; 14:3227-32. [DOI: 10.1002/cphc.201300511] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Indexed: 11/10/2022]
Affiliation(s)
- Tianshan Zhao
- Center for Applied Physics and Technology, College of Engineering, Peking University, Beijing 100871 (PR China)
| | - Yawei Li
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871 (PR China)
| | - Qian Wang
- Center for Applied Physics and Technology, College of Engineering, Peking University, Beijing 100871 (PR China)
- Department of Physics, Virginia Commonwealth University, Richmond, VA 23284 (USA)
| | - Puru Jena
- Department of Physics, Virginia Commonwealth University, Richmond, VA 23284 (USA)
| |
Collapse
|
30
|
Wen H, Liu YR, Huang T, Xu KM, Zhang WJ, Huang W, Wang LS. Observation of linear to planar structural transition in sulfur-doped gold clusters: AuxS−(x= 2–5). J Chem Phys 2013; 138:174303. [DOI: 10.1063/1.4802477] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
31
|
Wang LM, Wang LS. Probing the electronic properties and structural evolution of anionic gold clusters in the gas phase. NANOSCALE 2012; 4:4038-4053. [PMID: 22517376 DOI: 10.1039/c2nr30186e] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Gold nanoparticles have been discovered to exhibit remarkable catalytic properties in contrast to the chemical inertness of bulk gold. A prerequisite to elucidate the molecular mechanisms of the catalytic effect of nanogold is a detailed understanding of the structural and electronic properties of gold clusters as a function of size. In this review, we describe joint experimental studies (mainly photoelectron spectroscopy) and theoretical calculations to probe the structural properties of anionic gold clusters. Electronic properties and structural evolutions of all known Au(n)(-) clusters as experimentally confirmed to date are summarized, covering the size ranges of n = 3-35 and 55-64. Recent experimental efforts in resolving the isomeric issues of small gold clusters using Ar-tagging, O(2)-titration and isoelectronic substitution are also discussed.
Collapse
Affiliation(s)
- Lei-Ming Wang
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | | |
Collapse
|
32
|
|
33
|
Le Guennic B, Autschbach J. [Pt@Pb12]2– — A challenging system for relativistic density functional theory calculations of 195Pt and 207Pb NMR parameters. CAN J CHEM 2011. [DOI: 10.1139/v11-054] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We report computations of NMR chemical shifts and indirect spin-spin coupling constants (J couplings) for the [Pt@Pb12]2– “superatom”. The system is strongly influenced by relativistic effects. The Pt–Pb coupling constant is predicted to be negative, with its magnitude being in reasonable agreement with experiment. Pt and Pb chemical shifts also agree reasonably well with experiment. The Pb shielding tensor is strongly anisotropic, with a large deshielding principal component dominated by magnetic coupling between frontier orbitals of the cluster that resemble atomic g orbitals. The NMR parameters are sensitive to approximations made in the computations and require the inclusion of spin-orbit coupling in the theoretical model to achieve reliable results. Computing the NMR parameters of the compact [Pt@Pb12]2– system with its many electrons proves to be a challenging test case for relativistic density functional methods.
Collapse
Affiliation(s)
- Boris Le Guennic
- Université de Lyon, Laboratoire de Chimie, Ecole Normale Supérieure de Lyon, CNRS, 46 allée d’Italie, F-69364 Lyon, France
| | - Jochen Autschbach
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, NY 14260-3000, USA
| |
Collapse
|
34
|
Nijamudheen A, Jose D, Datta A. Metal encapsulation mediated planar to three dimensional structural transformation in Au-clusters: The venus flytrap effect. COMPUT THEOR CHEM 2011. [DOI: 10.1016/j.comptc.2011.02.025] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
35
|
Dong D, Ben-Xia Z, Bing Z. Geometrical, electronic, and magnetic properties of AunV (n = 1–8) clusters: A density functional study. Mol Phys 2011. [DOI: 10.1080/00268976.2011.587459] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
36
|
Pal R, Wang LM, Huang W, Wang LS, Zeng XC. Structure evolution of gold cluster anions between the planar and cage structures by isoelectronic substitution: Aun− (n = 13–15) and MAun− (n = 12–14; M = Ag, Cu). J Chem Phys 2011; 134:054306. [DOI: 10.1063/1.3533443] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
37
|
David J, Guerra D, Hadad CZ, Restrepo A. Structure and Reactivity of the 1Au6Pt Clusters. J Phys Chem A 2010; 114:10726-31. [DOI: 10.1021/jp106544w] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jorge David
- Escuela de Ciencias y Humanidades, Departamento de Ciencias básicas, Universidad Eafit AA 3300, Medellín, Colombia, and Grupo de Química-Física Teórica, Instituto de Química, Universidad de Antioquia, AA 1226 Medellín, Colombia
| | - Doris Guerra
- Escuela de Ciencias y Humanidades, Departamento de Ciencias básicas, Universidad Eafit AA 3300, Medellín, Colombia, and Grupo de Química-Física Teórica, Instituto de Química, Universidad de Antioquia, AA 1226 Medellín, Colombia
| | - C. Z. Hadad
- Escuela de Ciencias y Humanidades, Departamento de Ciencias básicas, Universidad Eafit AA 3300, Medellín, Colombia, and Grupo de Química-Física Teórica, Instituto de Química, Universidad de Antioquia, AA 1226 Medellín, Colombia
| | - Albeiro Restrepo
- Escuela de Ciencias y Humanidades, Departamento de Ciencias básicas, Universidad Eafit AA 3300, Medellín, Colombia, and Grupo de Química-Física Teórica, Instituto de Química, Universidad de Antioquia, AA 1226 Medellín, Colombia
| |
Collapse
|
38
|
Lin L, Claes P, Gruene P, Meijer G, Fielicke A, Nguyen M, Lievens P. Far-Infrared Spectra of Yttrium-Doped Gold Clusters AunY (n=1-9). Chemphyschem 2010; 11:1932-43. [DOI: 10.1002/cphc.200900994] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
39
|
Chen G, Wang Q, Sun Q, Kawazoe Y, Jena P. Structures of neutral and anionic Au16 clusters revisited. J Chem Phys 2010; 132:194306. [DOI: 10.1063/1.3427293] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
40
|
Yang A, Fa W, Dong J. Magnetic Properties of Transition-Metal-Doped Tubular Gold Clusters: M@Au24 (M = V, Cr, Mn, Fe, Co, and Ni). J Phys Chem A 2010; 114:4031-5. [PMID: 20192200 DOI: 10.1021/jp908511m] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Aping Yang
- Group of Computational Condensed Matter Physics, National Laboratory of Solid State Microstructures, and Department of Physics, Nanjing University, Nanjing 210093, China
| | - Wei Fa
- Group of Computational Condensed Matter Physics, National Laboratory of Solid State Microstructures, and Department of Physics, Nanjing University, Nanjing 210093, China
| | - Jinming Dong
- Group of Computational Condensed Matter Physics, National Laboratory of Solid State Microstructures, and Department of Physics, Nanjing University, Nanjing 210093, China
| |
Collapse
|
41
|
Gonzalez-Gallardo S, Prabusankar G, Cadenbach T, Gemel C, von Hopffgarten M, Frenking G, Fischer RA. Structure and Bonding of Metal-Rich Coordination Compounds Containing Low Valent Ga(I) and Zn(I) Ligands. STRUCTURE AND BONDING 2010. [DOI: 10.1007/978-3-642-05243-9_5] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
42
|
Cadenbach T, Bollermann T, Gemel C, Tombul M, Fernandez I, Hopffgarten MV, Frenking G, Fischer RA. Molecular Alloys, Linking Organometallics with Intermetallic Hume−Rothery Phases: The Highly Coordinated Transition Metal Compounds [M(ZnR)n] (n ≥ 8) Containing Organo−Zinc Ligands. J Am Chem Soc 2009; 131:16063-77. [DOI: 10.1021/ja904061w] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Thomas Cadenbach
- Inorganic Chemistry II - Organometallics & Materials, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, D-44870 Bochum, Germany, Departamiento Química Orgánica, Facultad de Química, Universidad Complutense de Madrid, 28040 Madrid, Spain, and Department of Chemistry, Philipps-University Marburg, D-35032 Marburg, Germany
| | - Timo Bollermann
- Inorganic Chemistry II - Organometallics & Materials, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, D-44870 Bochum, Germany, Departamiento Química Orgánica, Facultad de Química, Universidad Complutense de Madrid, 28040 Madrid, Spain, and Department of Chemistry, Philipps-University Marburg, D-35032 Marburg, Germany
| | - Christian Gemel
- Inorganic Chemistry II - Organometallics & Materials, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, D-44870 Bochum, Germany, Departamiento Química Orgánica, Facultad de Química, Universidad Complutense de Madrid, 28040 Madrid, Spain, and Department of Chemistry, Philipps-University Marburg, D-35032 Marburg, Germany
| | - Mustafa Tombul
- Inorganic Chemistry II - Organometallics & Materials, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, D-44870 Bochum, Germany, Departamiento Química Orgánica, Facultad de Química, Universidad Complutense de Madrid, 28040 Madrid, Spain, and Department of Chemistry, Philipps-University Marburg, D-35032 Marburg, Germany
| | - Israel Fernandez
- Inorganic Chemistry II - Organometallics & Materials, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, D-44870 Bochum, Germany, Departamiento Química Orgánica, Facultad de Química, Universidad Complutense de Madrid, 28040 Madrid, Spain, and Department of Chemistry, Philipps-University Marburg, D-35032 Marburg, Germany
| | - Moritz von Hopffgarten
- Inorganic Chemistry II - Organometallics & Materials, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, D-44870 Bochum, Germany, Departamiento Química Orgánica, Facultad de Química, Universidad Complutense de Madrid, 28040 Madrid, Spain, and Department of Chemistry, Philipps-University Marburg, D-35032 Marburg, Germany
| | - Gernot Frenking
- Inorganic Chemistry II - Organometallics & Materials, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, D-44870 Bochum, Germany, Departamiento Química Orgánica, Facultad de Química, Universidad Complutense de Madrid, 28040 Madrid, Spain, and Department of Chemistry, Philipps-University Marburg, D-35032 Marburg, Germany
| | - Roland A. Fischer
- Inorganic Chemistry II - Organometallics & Materials, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, D-44870 Bochum, Germany, Departamiento Química Orgánica, Facultad de Química, Universidad Complutense de Madrid, 28040 Madrid, Spain, and Department of Chemistry, Philipps-University Marburg, D-35032 Marburg, Germany
| |
Collapse
|
43
|
Huang W, Bulusu S, Pal R, Zeng XC, Wang LS. Structural transition of gold nanoclusters: from the golden cage to the golden pyramid. ACS NANO 2009; 3:1225-1230. [PMID: 19371073 DOI: 10.1021/nn900232d] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
How nanoclusters transform from one structural type to another as a function of size is a critical issue in cluster science. Here we report a study of the structural transition from the golden cage Au(16)(-) to the pyramidal Au(20)(-). We obtained distinct experimental evidence that the cage-to-pyramid crossover occurs at Au(18)(-), for which the cage and pyramidal isomers are nearly degenerate and coexist experimentally. The two isomers are observed and identified by their different interactions with O(2) and Ar. The cage isomer is observed to be more reactive with O(2) and can be preferentially "titrated" from the cluster beam, whereas the pyramidal isomer has slightly stronger interactions with Ar and is favored in the Au(18)Ar(x)(-) van der Waals complexes. The current study allows the detailed structural evolution and growth routes from the hollow cage to the compact pyramid to be understood and provides information about the structure-function relationship of the Au(18)(-) cluster.
Collapse
Affiliation(s)
- Wei Huang
- Department of Physics, Washington State University, 2710 University Drive, Richland, Washington 99354, USA
| | | | | | | | | |
Collapse
|
44
|
Höltzl T, Veldeman N, De Haeck J, Veszprémi T, Lievens P, Nguyen MT. Growth mechanism and chemical bonding in scandium-doped copper clusters: experimental and theoretical study in concert. Chemistry 2009; 15:3970-82. [PMID: 19296484 DOI: 10.1002/chem.200802372] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Size matters! The electronic structure and size-dependent stability of neutral and cationic scandium-doped copper clusters have been investigated by mass spectrometric studies (for the cations) and also quantum chemical computations. The proposed reaction paths ultimately lead to the most stable Frank-Kasper-shaped Cu(16)Sc(+) cluster (shown here), which could be the germ of a new crystallization process.Electronic structure and size-dependent stability of scandium-doped copper cluster cations, Cu(n)Sc(+), were investigated by using a dual-target dual-laser vaporization production scheme followed by mass spectrometric studies and also quantum chemical computations in the density functional theory framework. The neutral species also were studied by using computational methods. Enhanced abundances and dissociation energies were measured in the case of Cu(n)Sc(+) for n=4, 6, 8, 10 and 16, the last of these identified as being extraordinary stable. Neutral clusters are stable with n=5, 7, 9 and 15, which are isoelectronic with respect to the number of the valence s electrons with the stable cationic clusters; hence a simple electron count determines cluster properties to a great extent. The Cu(17)Sc cluster was found to be a superatomic molecule, containing Cu(16)Sc(+) and Cu(-) units; however, the charge separation is not as pronounced as in the case of CuLi. Cu(15)Sc was found to be a stable cluster with a large dissociation energy and a closed electronic structure; hence this can be regarded as a superatom, analogous to the noble gases. The main factors determining the growth patterns of these clusters are the central position of the scandium atom and the successive filling of the shell orbitals. For smaller clusters, the reaction paths appear to diverge yielding various products; however all paths ultimately lead to the most stable Frank-Kasper shaped Cu(16)Sc cluster, which in turn can be the germ of the crystallization process.
Collapse
Affiliation(s)
- Tibor Höltzl
- Department of Chemistry and INPAC-Institute for Nanoscale Physics and Chemistry, Katholieke Universiteit Leuven, 3001 Leuven, Belgium
| | | | | | | | | | | |
Collapse
|
45
|
Jiang DE, Dai S. From Superatomic Au25(SR)18− to Superatomic M@Au24(SR)18q Core−Shell Clusters. Inorg Chem 2009; 48:2720-2. [DOI: 10.1021/ic8024588] [Citation(s) in RCA: 150] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- De-en Jiang
- Chemical Sciences Division and Center for Nanophase Materials Science, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
| | - Sheng Dai
- Chemical Sciences Division and Center for Nanophase Materials Science, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
| |
Collapse
|
46
|
Pal R, Wang LM, Huang W, Wang LS, Zeng XC. Structural Evolution of Doped Gold Clusters: MAux− (M = Si, Ge, Sn; x = 5−8). J Am Chem Soc 2009; 131:3396-404. [PMID: 19216568 DOI: 10.1021/ja810093t] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Rhitankar Pal
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, Department of Physics, Washington State University, 2710 University Drive, Richland, Washington 99354, and Chemical & Materials Sciences Division, Pacific Northwest National Laboratory, MS K8-88, P.O. Box 999, Richland, Washington 99352
| | - Lei-Ming Wang
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, Department of Physics, Washington State University, 2710 University Drive, Richland, Washington 99354, and Chemical & Materials Sciences Division, Pacific Northwest National Laboratory, MS K8-88, P.O. Box 999, Richland, Washington 99352
| | - Wei Huang
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, Department of Physics, Washington State University, 2710 University Drive, Richland, Washington 99354, and Chemical & Materials Sciences Division, Pacific Northwest National Laboratory, MS K8-88, P.O. Box 999, Richland, Washington 99352
| | - Lai-Sheng Wang
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, Department of Physics, Washington State University, 2710 University Drive, Richland, Washington 99354, and Chemical & Materials Sciences Division, Pacific Northwest National Laboratory, MS K8-88, P.O. Box 999, Richland, Washington 99352
| | - Xiao Cheng Zeng
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, Department of Physics, Washington State University, 2710 University Drive, Richland, Washington 99354, and Chemical & Materials Sciences Division, Pacific Northwest National Laboratory, MS K8-88, P.O. Box 999, Richland, Washington 99352
| |
Collapse
|
47
|
Wang LM, Pal R, Huang W, Zeng XC, Wang LS. Tuning the electronic properties of the golden buckyball by endohedral doping: M@Au16− (M=Ag,Zn,In). J Chem Phys 2009; 130:051101. [DOI: 10.1063/1.3073884] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
48
|
Gao Y, Shao N, Zeng XC. Medium-sized double magic metal clusters: Al@Cu54− and Al@Ag54−. J Chem Phys 2008; 129:084703. [DOI: 10.1063/1.2969083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
49
|
Zorriasatein S, Joshi K, Kanhere DG. Electronic and structural investigations of gold clusters doped with copper: Aun−1Cu− (n=13–19). J Chem Phys 2008; 128:184314. [DOI: 10.1063/1.2913153] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
50
|
Fa W, Dong J. Structures of MAu16− (M=Ag, Li, Na, and K): How far is the endohedral doping? J Chem Phys 2008; 128:144307. [DOI: 10.1063/1.2897917] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|