Results 21 to 30 of about 6,717,903 (305)

Occupation numbers in density-functional calculations [PDF]

open access: yesPhysical Review B, 1995
10 pages, Revtex, accepted for publication by Phys.Rev ...
Valiev, M. M., Fernando, G. W.
openaire   +3 more sources

Localized Active Space Pair-Density Functional Theory [PDF]

open access: yes, 2021
Accurate quantum chemical methods for the prediction of spin-state energy gaps for strongly correlated systems are computationally expensive and scale poorly with the size of the system.
Matthew R., Hermes   +4 more
core   +2 more sources

The Elephant in the Room of Density Functional Theory Calculations [PDF]

open access: yesThe Journal of Physical Chemistry Letters, 2017
Using multiwavelets, we have obtained total energies and corresponding atomization energies for the GGA-PBE and hybrid-PBE0 density functionals for a test set of 211 molecules with an unprecedented and guaranteed $μ$Hartree accuracy. These quasi-exact references allow us to quantify the accuracy of standard all-electron basis sets that are believed to ...
Stig Rune Jensen   +6 more
openaire   +7 more sources

Spin–orbit couplings within spin-conserving and spin-flipping time-dependent density functional theory: Implementation and benchmark calculations [PDF]

open access: yes, 2022
We present a new implementation for computing spin-orbit couplings (SOCs) within time-dependent density-functional theory (TD-DFT) framework in the stan- dard spin-conserving formulation as well in the spin-flip variant (SF-TD-DFT). This approach employs
Anna , Krylov   +2 more
core   +2 more sources

Generalised stacking fault energies of copper alloys - density functional theory calculations [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2019
Generalised stacking fault energies of copper alloys have been calculated using density functional theory. Stacking fault energy of copper alloys is correlated with the d–electrons number of transition metal alloying element.
Muzyk M., Kurzydłowski K.J.
doaj   +1 more source

Understanding Catalytic Activity Trends of Electrochemical Ammonia Oxidation Reaction using Density Functional Theory Calculations and Microkinetic Modeling [PDF]

open access: yes, 2021
Electrochemical ammonia oxidation reaction (AOR) is promising as an alternative anodic reaction to oxygen evolution in water electrolysis system. Herein, we develop a microkinetic model based on density functional theory (DFT) calculations for all ...
Seoin, Back, Ho Yeon, Jang
core   +2 more sources

Dipole Moment Calculations Using Multiconfiguration Pair-Density Functional Theory and Hybrid Multiconfiguration Pair-Density Functional Theory [PDF]

open access: yes, 2021
The dipole moment is the molecular property that most directly indicates molecular polarity. The accuracy of computed dipole moments depends strongly on the quality of the calculated electron density, and the breakdown of single-reference methods for ...
Donald, Truhlar   +2 more
core   +1 more source

Virtual undergraduate chemical engineering labs based on density functional theory calculations

open access: yesChemistry Teacher International, 2023
Offering virtual laboratories to chemical engineering students is likely to extend beyond the COVID-19 era. Thus, there is a need to develop more simulation-based tasks in a wide blend of subjects, spanning thermodynamics, chemical reactions, and unit ...
Altarawneh Mohammednoor
doaj   +1 more source

An atomic scale mechanism for the antimalarial action of chloroquine from density functional theory calculations [PDF]

open access: yes, 2014
The X-ray crystal structures of complexes between the antimalarial drugs quinine, quinidine and halofantrine and their biological target, iron(III) ferriprotoporphyrin IX (FePPIX), have been reported in the literature (de Villiers et al. in ACS Chem Biol
Durrant, Marcus, Acharige, Anjana
core   +1 more source

Electronic Structure Calculations at Macroscopic Scales [PDF]

open access: yes, 2007
Electronic structure calculations, especially those using density-functional theory have provided many insights into various materials properties in the recent decade.
Gavini, Vikram
core   +1 more source

Home - About - Disclaimer - Privacy