1
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Orozco-Valencia U, Gázquez JL, Vela A. Global and local charge transfer in electron donor-acceptor complexes. J Mol Model 2018; 24:250. [PMID: 30141089 DOI: 10.1007/s00894-018-3772-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 07/27/2018] [Indexed: 10/28/2022]
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2
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Structure and bonding in WC n (n = 2–5) clusters. Theor Chem Acc 2016. [DOI: 10.1007/s00214-016-1979-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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3
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Zapata-Escobar AD, Cárcamo-Camacho T, Hadad CZ, Restrepo A. On the nature of the trimer, tetramer, and pentamer of ammonia borane. Theor Chem Acc 2016. [DOI: 10.1007/s00214-016-1853-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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4
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Flórez E, Maldonado AF, Aucar GA, David J, Restrepo A. Microsolvation of methylmercury: structures, energies, bonding and NMR constants (199Hg,13C and17O). Phys Chem Chem Phys 2016; 18:1537-50. [DOI: 10.1039/c5cp04826e] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hartree–Fock (HF) and second order perturbation theory (MP2) calculations within the scalar and full relativistic frames were carried out in order to determine the equilibrium geometries and interaction energies between cationic methylmercury (CH3Hg+) and up to three water molecules.
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Affiliation(s)
- Edison Flórez
- Instituto de Química
- Universidad de Antioquia UdeA
- Medellín
- Colombia
| | - Alejandro F. Maldonado
- Physics Department
- Natural and Exact Science Faculty
- Northeastern University of Argentina and Institute of Modelling and Innovation on Technology
- IMIT
- Corrientes
| | - Gustavo A. Aucar
- Physics Department
- Natural and Exact Science Faculty
- Northeastern University of Argentina and Institute of Modelling and Innovation on Technology
- IMIT
- Corrientes
| | - Jorge David
- Departamento de Ciencias Físicas
- Universidad EAFIT
- Medellín
- Colombia
| | - Albeiro Restrepo
- Instituto de Química
- Universidad de Antioquia UdeA
- Medellín
- Colombia
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5
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Zhang M, Zhang J, Gu T, Zhang H, Luo Y, Cao W. First-Principles Investigations of Chirality in Trimetallic Alloy Clusters: AlMnAun (n = 1–7). J Phys Chem A 2015; 119:3458-70. [DOI: 10.1021/jp511575y] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Meng Zhang
- Department
of Physics, East China University of Science and Technology, Shanghai 200237, China
| | - Jianfei Zhang
- Department
of Physics, East China University of Science and Technology, Shanghai 200237, China
| | - Teng Gu
- Department
of Physics, State Key Laboratory of Surface Physics and Advanced Materials
Laboratory, Fudan University, Shanghai 200433, China
| | - Hongyu Zhang
- Department
of Physics, East China University of Science and Technology, Shanghai 200237, China
| | - Youhua Luo
- Department
of Physics, East China University of Science and Technology, Shanghai 200237, China
| | - Wei Cao
- Department
of Physics, University of Oulu, P.O. Box 3000, Oulu FIN-90014, Finland
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6
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Hadad CZ, Jenkins S, Flórez E. Unusual solvation through both p-orbital lobes of a carbene carbon. J Chem Phys 2015; 142:094302. [DOI: 10.1063/1.4913568] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- C. Z. Hadad
- Grupo de Química-Física Teórica, Instituto de Química, Universidad de Antioquia, A. A. 1226 Medellín, Colombia
| | - Samantha Jenkins
- College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China
| | - Elizabeth Flórez
- Departamento de Ciencias Básicas, Universidad de Medellín, Carrera 87 N° 30-65, Medellín, Colombia
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7
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Gómez S, Restrepo A, Hadad CZ. Theoretical tools to distinguish O-ylides from O-ylidic complexes in carbene–solvent interactions. Phys Chem Chem Phys 2015; 17:31917-30. [DOI: 10.1039/c5cp04783h] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Orbital interactions and bond indices are among the theoretical tools suitable to distinguishO-ylides fromO-ylidic carbene–solvent complexes.
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Affiliation(s)
- Sara Gómez
- Grupo de Química-Física Teórica
- Instituto de Química
- Universidad de Antioquia
- Medellín
- Colombia
| | - Albeiro Restrepo
- Grupo de Química-Física Teórica
- Instituto de Química
- Universidad de Antioquia
- Medellín
- Colombia
| | - C. Z. Hadad
- Grupo de Química-Física Teórica
- Instituto de Química
- Universidad de Antioquia
- Medellín
- Colombia
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8
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Theoretical investigation on structural evolution, energetic stability trend and electronic properties of Au n Cd(n=1–12). J CHEM SCI 2014. [DOI: 10.1007/s12039-014-0649-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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9
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Zapata-Escobar A, Manrique-Moreno M, Guerra D, Hadad CZ, Restrepo A. A combined experimental and computational study of the molecular interactions between anionic ibuprofen and water. J Chem Phys 2014; 140:184312. [DOI: 10.1063/1.4874258] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
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10
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Hadad CZ, Florez E, Merino G, Cabellos JL, Ferraro F, Restrepo A. Potential energy surfaces of WC6 clusters in different spin states. J Phys Chem A 2014; 118:5762-8. [PMID: 24533862 DOI: 10.1021/jp4099045] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Stochastic explorations of the structural possibilities of neutral WC6 clusters in several spin states lead to very rich and complex potential energy surfaces, with geometries quite different from those of pure carbon clusters at the PBE0/def2-TZVP level. The global minimum is predicted to be a triplet-state semicyclic C6 conformation having every carbon in direct coordination to the W atom. Interaction energies are comparable to those of C7 clusters, revealing very strong W-C bonding. Our results suggest that C-C interactions in the clusters should be considered as intermediate between single and double bonds.
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Affiliation(s)
- C Z Hadad
- Instituto de Química, Universidad de Antioquia UdeA , Calle 70 No. 52-21, Medellín, Colombia
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11
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Geometric evolution, stability trend and electronic properties of rhenium-doped gold clusters. COMPUT THEOR CHEM 2014. [DOI: 10.1016/j.comptc.2013.10.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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12
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Xu T, Jenkins S, Xiao CX, Maza JR, Kirk SR. The Pt site reactivity of the molecular graphs of Au6Pt isomers. Chem Phys Lett 2013. [DOI: 10.1016/j.cplett.2013.10.059] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Nigam S, Sahoo SK, Sarkar P, Majumder C. Chair like NiAu6: Clusters assemblies and CO oxidation study by ab initio methods. Chem Phys Lett 2013. [DOI: 10.1016/j.cplett.2013.08.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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14
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Acelas N, Hincapié G, Guerra D, David J, Restrepo A. Structures, energies, and bonding in the water heptamer. J Chem Phys 2013; 139:044310. [DOI: 10.1063/1.4816371] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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15
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Structural characterization of the (MeSH)4 potential energy surface. J Mol Model 2013; 19:2173-81. [DOI: 10.1007/s00894-013-1765-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2012] [Accepted: 01/10/2013] [Indexed: 10/27/2022]
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16
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Microsolvation of Mg2+, Ca2+: strong influence of formal charges in hydrogen bond networks. J Mol Model 2013; 19:1763-77. [DOI: 10.1007/s00894-012-1716-5] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Accepted: 11/27/2012] [Indexed: 10/27/2022]
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17
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Ibargüen C, Manrique-Moreno M, Hadad CZ, David J, Restrepo A. Microsolvation of dimethylphosphate: a molecular model for the interaction of cell membranes with water. Phys Chem Chem Phys 2013; 15:3203-11. [DOI: 10.1039/c2cp42778h] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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19
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Yepes D, Kirk SR, Jenkins S, Restrepo A. Structures, energies and bonding in neutral and charged Li microclusters. J Mol Model 2012; 18:4171-89. [DOI: 10.1007/s00894-012-1406-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Accepted: 03/08/2012] [Indexed: 11/24/2022]
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20
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A density functional study on equilibrium geometries, stabilities and electronic properties of Au5Li binary clusters. APPLIED NANOSCIENCE 2012. [DOI: 10.1007/s13204-012-0092-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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21
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Zhang M, Zhang H, Zhao L, Li Y, Luo Y. Low-energy isomer identification, structural evolution, and magnetic properties in manganese-doped gold clusters MnAu(n) (n = 1-16). J Phys Chem A 2012; 116:1493-502. [PMID: 22225504 DOI: 10.1021/jp2094406] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The size-dependent electronic, structural, and magnetic properties of Mn-doped gold clusters have been systematically investigated by using relativistic all-electron density functional theory with generalized gradient approximation. A number of new isomers are obtained for neutral MnAu(n) (n = 1-16) clusters to probe the structural evolution. The two-dimensional (2D) to three-dimensional (3D) transition occurs in the size range n = 7-10 with manifest structure competitions. From size n = 13 to n = 16, the MnAu(n) prefers a gold cage structure with Mn atom locating at the center. The relative stabilities of the ground-state MnAu(n) clusters show a pronounced odd-even oscillation with the number of Au atoms. The magnetic moments of MnAu(n) clusters vary from 3 μ(B) to 6 μ(B) with the different cluster size, suggesting that nonmagnetic Au(n) clusters can serve as a flexible host to tailor the dopant's magnetism, which has potential applications in new nanomaterials with tunable magnetic properties.
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Affiliation(s)
- Meng Zhang
- Department of Physics, East China University of Science and Technology, Shanghai 200237, China
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22
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Romero J, Reyes A, David J, Restrepo A. Understanding microsolvation of Li+: structural and energetical analyses. Phys Chem Chem Phys 2011; 13:15264-71. [DOI: 10.1039/c1cp20903e] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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