Results 61 to 70 of about 655,640 (396)

Prediction Errors of Molecular Machine Learning Models Lower than Hybrid DFT Error.

open access: yesJournal of Chemical Theory and Computation, 2017
We investigate the impact of choosing regressors and molecular representations for the construction of fast machine learning (ML) models of 13 electronic ground-state properties of organic molecules.
Felix A Faber   +11 more
semanticscholar   +1 more source

Synergistic Approach of Ultrafast Spectroscopy and Molecular Simulations in the Characterization of Intramolecular Charge Transfer in Push-Pull Molecules

open access: yesMolecules, 2020
The comprehensive characterization of Intramolecular Charge Transfer (ICT) stemming in push-pull molecules with a delocalized π-system of electrons is noteworthy for a bespoke design of organic materials, spanning widespread applications from ...
Barbara Patrizi   +4 more
doaj   +1 more source

The Algebroid Structure of Double Field Theory [PDF]

open access: yes, 2019
By doubling the target space of a canonical Courant algebroid and subsequently projecting down to a specific subbundle, we identify the data of double field theory (DFT) and hence define its algebroid structure.
Chatzistavrakidis, Athanasios   +3 more
core   +2 more sources

Electro-Magnetic Behavior of Highly Correlated Fluorides KFeF3, KCoF3 and KNiF3: A Comparative Ab-initio Study of Cation Effect

open access: yesAnnals of West University of Timisoara: Physics, 2020
Fluorides-based perovskites are currently the typical materials being used in spintronic devices, optoelectronic and magneto-resistance colossal fields. Solar cells made of Fluoro-perovskite hold much promise for the future of solar energy.
Filalli Sihem, Hamdad Noura
doaj   +1 more source

Physi-Sorption of H2 on Pure and Boron–Doped Graphene Monolayers: A Dispersion–Corrected DFT Study

open access: yesC, 2020
High-surface-area carbons are of interest as potential candidates to store H2 for fuel−cell power applications. Earlier work has been ambiguous and inconclusive on the effect of boron doping on H2 binding energy.
Iffat Nayyar   +4 more
doaj   +1 more source

Density functional analysis: The theory of density-corrected DFT. [PDF]

open access: yesJournal of Chemical Theory and Computation, 2019
Density-corrected density functional theory (DC-DFT) is enjoying substantial success in improving semilocal DFT calculations in a wide variety of chemical problems.
Stefan Vuckovic   +4 more
semanticscholar   +1 more source

Density functional theory embedding for correlated wavefunctions: Improved methods for open-shell systems and transition metal complexes [PDF]

open access: yes, 2012
Density functional theory (DFT) embedding provides a formally exact framework for interfacing correlated wave-function theory (WFT) methods with lower-level descriptions of electronic structure.
Frederick R. Manby   +4 more
core   +1 more source

A variational polaron self-interaction corrected total-energy functional for charge excitations in wide-band gap insulators [PDF]

open access: yes, 2015
We conduct a detailed investigation of the polaron self-interaction (pSI) error in standard approximations to the exchange-correlation (XC) functional within density-functional theory (DFT).
Erhart, Paul   +2 more
core   +2 more sources

DFTS on Irregular Grids: The Anterpolated DFT [PDF]

open access: yes, 1992
Abstract : In many instances the discrete Fourier transform (DFT) is desired for a data set that occurs on an irregular grid. Commonly the data are interpolated to a regular grid, and a fast Fourier transform (FFT) is then applied. A drawback to this approach is that typically the data have unknown smoothness properties, so that the error in the ...
openaire   +2 more sources

About the Mulliken electronegativity in DFT [PDF]

open access: yesTheoretical Chemistry Accounts, 2005
20 pages, 1 figure, 1 ...
PUTZ M. V, RUSSO, Nino, SICILIA, Emilia
openaire   +4 more sources

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