Results 21 to 30 of about 258,611 (317)

Spectroscopic properties of Vitamin C: A theoretical work

open access: yesCumhuriyet Science Journal, 2020
Vitamin C is an important human micronutrient. It has many vital biological functions in human health. In this research paper, the molecule of vitamin C was optimized and energy band gaps were determined using DFT and HF methods. In computational quantum
Lana Ahmed, Rebaz Omer
doaj   +1 more source

Oxovanadium(IV) complexes of the pyridoxal Schiff bases: Synthesis, experimental and theoretical characterizations, QTAIM analysis and antioxidant activity [PDF]

open access: yesJournal of the Serbian Chemical Society, 2020
Two vanadyl complexes of the pyridoxal Schiff bases have been newly synthesized and characterized by several experimental methods, where the 4,4′-[1,4-butanediylbis-[(E)-nitrilomethylidyne])bis[5-hydroxy-6-methyl- -3-pyridinemethanol] and trans-4,4′-[1,2-
Ghorbani Parisa   +3 more
doaj   +1 more source

Modifikasi Sifat Elektronik Material Perovskit NaYTiO4 oleh Variasi Konsentrasi Dopan Lantanum dengan Metode Density Functional Theory

open access: yesAlchemy, 2022
Energi celah pita dan density of state (DOS) dari NaY(1-x)LaxTiO4 (x = 0; 0,25; 0,50 dan 0,75) dapat diprediksi secara teoritis menggunakan pendekatan density functional theory (DFT).
Wisanggeni Bayu Aji, Hari Sutrisno
doaj   +1 more source

Copper Corrosion Protection by 4-Hydrocoumarin Derivatives: Insight from Density Functional Theory, Ab Initio, and Monte Carlo Simulation Studies

open access: yesIndonesian Journal of Chemistry, 2022
The corrosion inhibition performance of 4-hydrocoumarin derivatives has been studied using weight loss, electrochemical impedance spectroscopy, potentiodynamic polarization, and electrochemical frequency modulation techniques.
Saprizal Hadisaputra   +2 more
doaj   +1 more source

DFT-Machine Learning Approach for Accurate Prediction of pKa

open access: yes, 2021
In this study, we propose a novel method of pKa prediction in a diverse set of acids, which combines density functional theory (DFT) method with machine learning (ML) methods.
Yao-Hao Liu (11473689)   +6 more
core   +1 more source

Synthesis of and theoretical research on some azine derivatives and investigation of their antimicrobial activities [PDF]

open access: yesJournal of the Serbian Chemical Society
This study includes experimental, theoretical and antimicrobial investigations on 1-(diphenylmethylene)-2-(4-methoxybenzylidene)hydrazine (5), 1-(3,5-dimethoxybenzylidene)-2-(diphenylmethylene)hydrazine (6) and 1-(diphenylmethylene)- 2-(2,3,4 ...
Aytaç Sertan
doaj   +1 more source

EFT for DFT [PDF]

open access: yes, 2012
Comment: 57 pages, to appear in the proceedings of the ECT* school on "Renormalization Group and Effective Field Theory Approaches to Many-Body Systems", Springer Lecture Notes in Physics; acknowledgment ...
openaire   +2 more sources

EXAFS, DFT, light-induced nucleobase binding, and cytotoxicity of the photoactive complex cis-[Ru(bpy)2(CO)Cl]+ [PDF]

open access: yes, 2010
The aqueous photochemistry of cis-[Ru(bpy)2(CO)Cl]+ (1) was investigated at 310 K and under visible light (white) irradiation by NMR and ESI-HR-MS. Complex 1 releases a Cl ligand, coordinates a solvent molecule, and forms the complex cis-[Ru(bpy)2(CO ...
Gianolio, Diego   +21 more
core   +1 more source

Approximating constant potential DFT with canonical DFT and electrostatic corrections

open access: yesThe Journal of Chemical Physics, 2023
The complexity of electrochemical interfaces has led to the development of several approximate density functional theory (DFT)-based schemes to study reaction thermodynamics and kinetics as a function of electrode potential. While fixed electrode potential conditions can be simulated with grand canonical ensemble DFT (GCE-DFT), various electrostatic ...
Melander   +2 more
openaire   +3 more sources

Procarbazine adsorption on the surface of single walled carbon nanotube: DFT studies [PDF]

open access: yesChemical Review and Letters, 2020
< p>In this research, the performance of single-walled carbon nanotube (SWCN) as a sensor and nanocarrier for procarbazine (PC) was investigated by infra-red (IR), natural bond orbital (NBO), frontier molecular orbital (FMO) computations.
Mohammad Reza Jalali Sarvestani   +2 more
doaj   +1 more source

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