Results 31 to 40 of about 1,493,686 (274)

The Azide-Allene Dipolar Cycloaddition: Is DFT Able to Predict Site- and Regio-Selectivity?

open access: yesMolecules, 2021
The site- and regio-selectivity of thermal, uncatalysed 1,3-dipolar cycloadditions between arylazides and mono- or tetra-substituted allenes with different electronic features have been investigated by both conceptual (reactivity indices) and ...
Giorgio Molteni, Alessandro Ponti
doaj   +1 more source

Phototauntomerism of o-nitrobenzyl compounds: o-quinonoid aci-nitro species studied by matrix isolation and DFT calculations [PDF]

open access: yes, 2001
Photolyses of 2-nitrobenzyl methyl ether and 2-nitrotoluene with 254 nm light have been investigated in Ar and N2 matrices at 12 K, and have been found to give o-quinonoid aci-nitro species as the primary photoproducts, along with other products.
Kiszka, Mariusz   +3 more
core   +4 more sources

DFT-Based Modulation and Demodulation for Affine Frequency Division Multiplexing

open access: yes, 2023
This paper deals with discrete Fourier transform (DFT)-based modulation and demodulation techniques for affine frequency division multiplexing (AFDM) instead of discrete affine Fourier transform (DAFT).
Vincent Savaux (8312571)
core   +1 more source

A density functional theory insight into the structure and reactivity of diphenyltin(IV) derivative of glycylphenylalanine

open access: yesMain Group Metal Chemistry, 2016
The quantum-chemical calculations based on density functional theory (DFT) have been performed on the diphenyltin(IV) derivative of glycyl-phenylalanine (H2L) at the B3LYP/6-31G(d,p)/LANL2DZ(Sn) level of theory without any symmetry constraint.
Pokharia Sandeep   +4 more
doaj   +1 more source

Conceptual model for the integration of personal attribute

open access: yes, 2022
The current curriculum of Electrical Technology Education (ETE) of Nigerian Universities has been criticized for not meeting the desired challenges. The personal attribute skills were found are not integrated in the curriculum.
Conceptual
core   +1 more source

Orbital Energies and Nuclear Forces in DFT: Interpretation and Validation [PDF]

open access: yes, 2020
The bonding and antibonding character of individual Molecular Orbitals has been previously shown to be related to their orbital energy derivatives with respect to nuclear coordinates, known as Dynamical Orbital Forces.
Patrick, Chaquin   +4 more
core   +1 more source

DFT-Guided Mechanistic Insights into Chemodivergence: A Mixed Explicit–Implicit Solvent Description to Dictate the Chemoselectivity

open access: yes, 2023
Herein we report a density functional theory (DFT)-guided mechanistic investigation of the nitrile reduction reaction, which exhibits a solvent-dependent chemodivergence.
Debashis Adhikari (1417639)   +3 more
core   +2 more sources

Chemical Reactivity Theory Study of Advanced Glycation Endproduct Inhibitors

open access: yesMolecules, 2017
Several compounds with the known ability to perform as inhibitors of advanced glycation endproducts (AGE) have been studied with Density Functional Theory (DFT) through the use of ...
Juan Frau, Daniel Glossman-Mitnik
doaj   +1 more source

Theoretical Study of Copper Complexes: Molecular Structure, Properties, and Its Application to Solar Cells

open access: yesInternational Journal of Photoenergy, 2013
We present a theoretical investigation of copper complexes with potential applications as sensitizers for solar cells. The density functional theory (DFT) and time-dependent DFT were utilized, using the M06 hybrid meta-GGA functional with the LANL2DZ ...
Jesus Baldenebro-Lopez   +4 more
doaj   +1 more source

Computational Study of 3,4-Diphenyl-1,2,5-Thiadiazole 1-Oxide for Organic Photovoltaics

open access: yesInternational Journal of Photoenergy, 2009
We make use of a model chemistry within Density Functional Theory (DFT) recently presented, which is called CHIH-DFT, to calculate the molecular structure of 3,4-diphenyl-1,2,5-thiadiazole 1-oxide (TSO), as well to predict its infrared (IR), ultraviolet (
Daniel Glossman-Mitnik
doaj   +1 more source

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