Results 41 to 50 of about 1,238,882 (296)

Heterogeneous catalyst design by generative adversarial network and first-principles based microkinetics

open access: yesScientific Reports, 2022
Microkinetic analysis based on density functional theory (DFT) was combined with a generative adversarial network (GAN) to enable the artificial proposal of heterogeneous catalysts based on the DFT-calculated dataset.
Atsushi Ishikawa
doaj   +1 more source

Highly Fluorescent Dyes Containing Conformationally Restrained Pyrazolylpyrene (Pyrazoolympicene) Chromophore

open access: yesMolecules, 2022
The triflic-acid-promoted cyclization of 1-phenyl-3-(pyren-1-yl)-1H-pyrazole-4-carbaldehyde afforded a mixture of 9-phenyl-7,9-dihydropyreno (10,1-fg)indazole and 9-phenylpyreno(10,1-fg)indazole-7(9H)-one, readily separable by column chromatography. Both
Anna Wrona-Piotrowicz   +2 more
doaj   +1 more source

Fusion using time-dependent density-constrained DFT

open access: yesEPJ Web of Conferences, 2014
We present results for calculating fusion cross-sections using a new microscopic approach based on a time-dependent density-constrained DFT calculations.
Keser R.   +4 more
doaj   +1 more source

Modelling Catalyst Surfaces Using DFT Cluster Calculations [PDF]

open access: yesInternational Journal of Molecular Sciences, 2009
We review our recent theoretical DFT cluster studies of a variety of industrially relevant catalysts such as TiO2, γ-Al2O3, V2O5-WO3-TiO2 and Ni/Al2O3. Aspects of the metal oxide surface structure and the stability and structure of metal clusters on the support are discussed as well as the reactivity of surfaces, including their behaviour upon ...
Czekaj, Izabela   +2 more
openaire   +3 more sources

π-Extended Boron Difluoride [NՈNBF2] Complex, Crystal Structure, Liquid NMR, Spectral, XRD/HSA Interactions: A DFT and TD-DFT Study

open access: yesCrystals, 2021
The novel tetrahedral 10-(4-carboxyphenyl)-2,8-diethyl-5,5-difluoro-1,3,7,9-tetramethyl-5H-di-pyrrolo[1,2-c:2’,1’-f][1,3,2]diazaborinin-4-ium-5-uide [NՈNBF2] BODIPY complex was prepared in a very good yield and via one-pot synthesis. The desired [NՈNBF2]
Abdulrahman A. Alsimaree   +7 more
doaj   +1 more source

Self-Consistent Constricted Variational Theory RSCF-CV(∞)-DFT and Its Restrictions To Obtain a Numerically Stable ΔSCF-DFT-like Method: Theory and Calculations for Triplet States

open access: yes, 2016
In this paper, the relaxed self-consistent field infinite order constricted variational density functional theory (RSCF-CV(∞)-DFT) for triplet calculations is presented. Here, we focus on two main features of our implementation. First, as an extension of
Tom Ziegler (1535809)   +3 more
core   +1 more source

DFT+U Calculations of Transition Metal Doped AlN [PDF]

open access: yes, 2009
The electronic structure of transition metal (TM = V, Cr, Mn, Fe) doped aluminium nitride was presented. The calculations were made within the DFT and DFT+U approach and the supercell approximation.
Kaczkowski, J., Jezierski, A.
core   +1 more source

5-Methyl-1,3-phenylene bis[5-(dimethylamino)naphthalene-1-sulfonate]: crystal structure and DFT calculations

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2019
The title compound, C31H30N2S2O6, possesses crystallographically imposed twofold symmetry with the two C atoms of the central benzene ring and the C atom of its methyl substituent lying on the twofold rotation axis. The two dansyl groups are twisted away
Tanwawan Duangthongyou   +5 more
doaj   +1 more source

Explicit demonstration of the equivalence between DFT+U and the Hartree-Fock limit of DFT+DMFT

open access: yesPhysical Review Research
Several methods have been developed to improve the predictions of density functional theory (DFT) in the case of strongly correlated electron systems. Out of these approaches, DFT+U, which corresponds to a static treatment of the local interaction, and ...
Alberto Carta   +4 more
doaj   +1 more source

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