Results 71 to 80 of about 11,742,928 (131)

Exchange-correlation functionals from ab initio potentials [PDF]

open access: yes, 2002
An accurate description of the exchange-correlation energy is central to density functional theory (DFT). In this thesis a series of exchange-correlation functionals are developed using new approaches based on exchange-correlation potentials and ...
Menconi, Giuseppina
core  

GRAPH2MAT: UNIVERSAL GRAPH TO MATRIX CONVERSION FOR ELECTRON DENSITY PREDICTION [PDF]

open access: yes
Electron density is a fundamental observable of an atomic system from which all ground state properties can be computed. As a prediction target for machine learning models, electron density is often represented on a dense real space grid, which is data ...
Alberto, Garcia   +5 more
core   +1 more source

A Molecular Electron Density Theory Study of the Role of the Copper-Metallation of Azomethine Ylides in [3+2] Cycloaddition Reactions

open access: yes
The copper metalation of azomethine ylides (AYs) in [3 + 2] cycloaddition (32CA) reactions with electron-deficient ethylenes has been studied within the Molecular Electron Density Theory (MEDT) at the MPWB1K/6-311G(d,p) level, in order to shed light on ...
María del Mar Ríos Gutiérrez   +2 more
core   +1 more source

High quality electron densities as a tool in Kohn-Sham theory [PDF]

open access: yes, 2004
In this thesis high quality electron densities are used to provide insight into density functional theory (DFT) and to improve the quality of DFT calculations.
Allen, Mark J., Allen, Mark J
core  

Protein-ligand binding affinities from large-scale quantum mechanical simulations

open access: yes, 2012
The accurate prediction of protein-drug binding affinities is a major aim of computational drug optimisation and development. A quantitative measure of binding affinity is provided by the free energy of binding, and such calculations typically require ...
Fox, Stephen J.
core   +1 more source

Desenvolvimento de métodos para o estudo teórico da dinâmica de sistemas moleculares [PDF]

open access: yes, 2015
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2015.Três fenômenos dinâmicos em sistemas moleculares e condensados foram investigados por ...
Oliboni, Robson da Silva
core  

Calculation of crystal optical properties from molecular electron density

open access: yes, 2013
We have recently developed a method to obtain distributed atomic polarizabilities adopting a partitioning of the molecular electron density (for example, the Quantum Theory of Atoms in Molecules, [1]), calculated with or without an applied electric field.
Krawczuk, Anna Malgorzata   +2 more
core  

A Molecular Electron Density Theory Study of the Polar Diels-Alder of Naphtoquinone:Cr(CO)3 Complex with Cyclic Dienes

open access: yes
The role of the Cr(CO)3 coordination to the aromatic ring of naphtoquinone (NQ) in the polar Diels-Alder (P-DA) reactions with cyclic dienes, cyclopentadiene (Cp), cyclohexadiene (Ch), and 1-methoxy-cyclohexadiene (ChOMe), has been studied within ...
Aurell, María José   +2 more
core   +1 more source

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