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Communication: An approximation to Bader’s topological atom

A new, more flexible definition of fuzzy Voronoi cells is proposed as a computationally efficient alternative to Bader’s Quantum Theory of Atoms in Molecules (QTAIM) partitioning of the physical space for large-scale routine calculations. The new fuzzy scheme provides atomic charges, delocalization indices, and molecular energy components very close to those obtained using QTAIM. The method is flexible enough to either ignore the presence of spurious non-nuclear attractors or to readily incorporate them by introducing additional fuzzy Voronoi cells

Financial help has been furnished by the Spanish MICINN Project No. CTQ2011-23441/BQU, the FEDER UNGI08-4E-003, and the Generalitat de Catalunya SGR528 grants. Support from the Xarxa de Referencia en Quimica Teorica i Computacional is also acknowledged. E. R.-C. acknowledges support from the Spanish FPU program (Grant No. AP2008-01231)

American Institute of Physics

Director: Ministerio de Ciencia e Innovación (Espanya)
Generalitat de Catalunya. Agència de Gestió d’Ajuts Universitaris i de Recerca
Autor: Salvador Sedano, Pedro
Ramos-Cordoba, Eloy
Resum: A new, more flexible definition of fuzzy Voronoi cells is proposed as a computationally efficient alternative to Bader’s Quantum Theory of Atoms in Molecules (QTAIM) partitioning of the physical space for large-scale routine calculations. The new fuzzy scheme provides atomic charges, delocalization indices, and molecular energy components very close to those obtained using QTAIM. The method is flexible enough to either ignore the presence of spurious non-nuclear attractors or to readily incorporate them by introducing additional fuzzy Voronoi cells
Financial help has been furnished by the Spanish MICINN Project No. CTQ2011-23441/BQU, the FEDER UNGI08-4E-003, and the Generalitat de Catalunya SGR528 grants. Support from the Xarxa de Referencia en Quimica Teorica i Computacional is also acknowledged. E. R.-C. acknowledges support from the Spanish FPU program (Grant No. AP2008-01231)
Accés al document: http://hdl.handle.net/2072/295225
Llenguatge: eng
Editor: American Institute of Physics
Drets: Tots els drets reservats
Matèria: Enllaços químics
Chemical bonds
Dinàmica
Dinamics
Materials -- Anàlisi
Materials -- Analysis
Ful·lerens
Fullerenes
Títol: Communication: An approximation to Bader’s topological atom
Tipus: info:eu-repo/semantics/article
Repositori: Recercat

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