Energy decompositions according to physical space partitioning schemes
This work describes simple decompositions of the energy of molecular systems according to schemes that partition the three-dimensional space. The components of those decompositions depend on one and two atomic domains thus providing a meaningful chemical information about the nature of different bon...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2005 |
| País: | Argentina |
| Institución: | Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales |
| Repositorio: | Biblioteca Digital (UBA-FCEN) |
| Idioma: | inglés |
| OAI Identifier: | paperaa:paper_00219606_v122_n7_p_Alcoba |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00219606_v122_n7_p_Alcoba |
| Access Level: | acceso abierto |
| Palabra clave: | Chemical picture Computational costs Energy decomposition Physical space partitioning schemes Algorithms Atoms Chemical bonds Computational methods Costs Decomposition Energy management Molecular dynamics |
| Sumario: | This work describes simple decompositions of the energy of molecular systems according to schemes that partition the three-dimensional space. The components of those decompositions depend on one and two atomic domains thus providing a meaningful chemical information about the nature of different bondings among the atoms which compose the system. Our algorithms can be applied at any level of theory (correlated or uncorrelated wave functions). The results reported here, obtained at the Hartree-Fock level in selected molecules, show a good agreement with the chemical picture of molecules and require a low computational cost in comparison with other previously reported decompositions. |
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