|
1
|
Gao Z, Cheng X, Zhao M. Ab initio diffusion quantum Monte Carlo study of the structural and electronic properties of small Lithium-Chloride LinCl (0,1+) (n = 1–7) clusters. COMPUT THEOR CHEM 2022. [DOI: 10.1016/j.comptc.2022.113781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
|
2
|
Alanís-Manzano EI, Ramírez-Solís A. On the structure of the lowest spin states of Li13+. Hybrid DFT vs. benchmark CASSCF-CASPT2 studies. COMPUT THEOR CHEM 2021. [DOI: 10.1016/j.comptc.2021.113230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
|
3
|
Brito BGA, Hai GQ, Cândido L. Quantum Monte Carlo simulation for the many-body decomposition of the interaction energy and electron correlation of small superalkali lithium clusters. J Chem Phys 2019; 151:014303. [DOI: 10.1063/1.5099479] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- B. G. A. Brito
- Departamento de Física, Instituto de Ciências Exatas e Naturais e Educação (ICENE), Universidade Federal do Triângulo Mineiro - UFTM, 38064-200, Uberaba, MG, Brazil
| | - G.-Q. Hai
- Instituto de Física de São Carlos, Universidade de São Paulo, 13560-970, São Carlos, SP, Brazil
| | - L. Cândido
- Instituto de Física, Universidade Federal de Goiás - UFG, 74001-970, Goiânia, GO, Brazil
| |
Collapse
|
|
4
|
Brito BGA, Hai GQ, Cândido L. A quantum Monte Carlo study of the structural and electronic properties of small cationic and neutral lithium clusters. J Chem Phys 2017; 146:174306. [DOI: 10.1063/1.4982726] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- B. G. A. Brito
- Departamento de Física, Instituto de Ciências Exatas e Naturais e Educação (ICENE), Universidade Federal do Triângulo Mineiro - UFTM, 38064-200 Uberaba, Minas Gerais, Brazil
| | - G.-Q. Hai
- Instituto de Física de São Carlos, Universidade de São Paulo, 13560-970 São Carlos, São Paulo, Brazil
| | - Ladir Cândido
- Instituto de Física, Universidade Federal de Goiás - UFG, 74001-970 Goiânia, Goiás, Brazil
| |
Collapse
|
|
5
|
Moreira NL, Brito BGA, Rabelo JNT, Cândido L. Quantum monte carlo study of the energetics of small hydrogenated and fluoride lithium clusters. J Comput Chem 2016; 37:1531-6. [DOI: 10.1002/jcc.24363] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 02/23/2016] [Accepted: 02/24/2016] [Indexed: 01/13/2023]
Affiliation(s)
- N. L. Moreira
- IFQ Regional Catalão; Universidade Federal de Goiás; Catalão Goiás 75705-020 Brazil
| | - B. G. A. Brito
- Departamento de Física; Instituto de Ciências Exatas e Naturais e Educação (ICENE) Uberaba MG, 38064-200 Brazil Universidade Federal do Triângulo Mineiro - UFTM
| | - J. N. Teixeira Rabelo
- Instituto de Física, Universidade Federal de Goiás - UFG; Goiânia, Go 74001-970 Brazil
| | - Ladir Cândido
- Instituto de Física, Universidade Federal de Goiás - UFG; Goiânia, Go 74001-970 Brazil
| |
Collapse
|
|
6
|
Abstract
A tight-binding quantum Hamiltonian and an empirical embedded-atom model (EAM) potential are used to get insight into the finite-temperature behavior of small Lin clusters, n = 8, 20, and 55. Exchange Monte Carlo simulations provide an extensive sampling of configuration space, including the putative global minimum and many relevant isomers. The heat capacities obtained from the classical simulations are corrected for low-temperature quantum delocalization using the Pitzer-Gwinn approximation. Alternatively, the caloric curves are estimated from the database of local minima using the quantum harmonic superposition approximation. While the two atomistic models predict qualitatively similar features, including some premelting effects in Li20 but none in Li55, strong variations are observed in the melting temperatures, the EAM potential giving unexpectedly low values.
Collapse
|
|
7
|
Fournier R, Bo Yi Cheng J, Wong A. Theoretical study of the structure of lithium clusters. J Chem Phys 2003. [DOI: 10.1063/1.1615237] [Citation(s) in RCA: 78] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
|
8
|
Weis P, Bierweiler T, Vollmer E, Kappes MM. Au9+: Rapid isomerization reactions at 140 K. J Chem Phys 2002. [DOI: 10.1063/1.1517301] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
|
9
|
|
|
10
|
Xiang Y, Sun DY, Gong XG. Generalized Simulated Annealing Studies on Structures and Properties of Nin (n = 2−55) Clusters. J Phys Chem A 2000. [DOI: 10.1021/jp992923q] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Y. Xiang
- Institute of Solid State Physics, Academia Sinica, 230031-Hefei, P. R. China
| | - D. Y. Sun
- Institute of Solid State Physics, Academia Sinica, 230031-Hefei, P. R. China
| | - X. G. Gong
- Institute of Solid State Physics, Academia Sinica, 230031-Hefei, P. R. China
| |
Collapse
|
|
11
|
Rousseau R, Marx D. The interaction of gold clusters with methanol molecules: Ab initio molecular dynamics of Aun+CH3OH and AunCH3OH. J Chem Phys 2000. [DOI: 10.1063/1.480719] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
|
12
|
Rousseau R, Marx D. The role of quantum and thermal fluctuations upon properties of lithium clusters. J Chem Phys 1999. [DOI: 10.1063/1.479765] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
|
13
|
Nayak S, Rao B, Jena P, Li X, Wang LS. Observation of a spin-protected high-energy isomer of Al4N− cluster. Chem Phys Lett 1999. [DOI: 10.1016/s0009-2614(99)00024-x] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
|
14
|
|
|
15
|
Jones RO, Lichtenstein AI, Hutter J. Density functional study of structure and bonding in lithium clusters Lin and their oxides LinO. J Chem Phys 1997. [DOI: 10.1063/1.473498] [Citation(s) in RCA: 107] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
|
16
|
|
|
17
|
Kietzmann H, Morenzin J, Bechthold PS, Ganteför G, Eberhardt W, Yang DS, Hackett PA, Fournier R, Pang T, Chen C. Photoelectron Spectra and Geometric Structures of Small Niobium Cluster Anions. PHYSICAL REVIEW LETTERS 1996; 77:4528-4531. [PMID: 10062561 DOI: 10.1103/physrevlett.77.4528] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
|
18
|
Nayak SK, Rao B, Khanna S, Jena P. Structural isomerism of niobium clusters and its role on reactivity. Chem Phys Lett 1996. [DOI: 10.1016/0009-2614(96)00830-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
|
19
|
|