Results 21 to 30 of about 18,272 (254)

DFT study and NBO analysis of solvation/substituent effects of 3-phenylbenzo[d]thiazole-2(3H)-imine derivatives [PDF]

Journal of the Serbian Chemical Society, 2020
In this work, to determine natural bond orbital (NBO) analysis, solvation and substituent effects for electron-releasing substituents (CH3, OH) and electron-withdrawing derivatives (Cl, NO2, CF3) in para positions on the molecular structure of the ...
Miar Marzieh, Shiroudi Abolfazl, Pourshamsian Khalil, Oliaey Ahmad Reza, Hatamjafari Farhad   +4 more
doaj   +1 more source

Study of Tl-based perovskite materials TlZX3 (Z = Ge, Sn, Be, Sr; X = Cl, Br, I) for application in scintillators: DFT and TD-DFT approach

Chemical Physics Impact, 2023
Scintillators are designed significantly for utilization in a broad range of technology fields, notably nuclear physics, healthcare testing, and materials analysis.
Pooja Sharma, Prabhat Ranjan, Tanmoy Chakraborty   +2 more
doaj   +1 more source

A comprehensive model for chemical bioavailability and toxicity of organic chemicals based on first principles

Frontiers in Marine Science, 2014
Here, we present a novel model to predict the toxicity and bioavailability of polychlorinated biphenyls (PCBs) as model compounds based on a first principles approach targeting basic electronic characteristics. The predictive model is based on an initio
Jay eForrest, Paul eBazylewski, Robert eBauer, Seongjin eHong, Chang Yong eKim, John P Giesy, Jong Seong eKhim, Gap Soo eChang   +7 more
doaj   +1 more source

Boron Nitride Nanotubes for Curcumin Delivery as an Anticancer Drug: A DFT Investigation

Applied Sciences, 2022
The electrical properties and characteristics of the armchair boron nitride nanotube (BNNT) that interacts with the curcumin molecule as an anticancer drug were studied using ab initio calculations based on density functional theory (DFT). In this study,
Suleiman Nafiu, Vitus Atanga Apalangya, Abu Yaya, Edward Benjamin Sabi   +3 more
doaj   +1 more source

Data related to conformation dependence of tyrosine binding on the surface of graphene: Bent prefers over parallel orientation

Data in Brief, 2019
In this data article, M06-2X/6-31G(d) level optimized geometries of complexes of tyrosine conformers binding with graphene sheets are shown in top and side views with selected non-bonding distances.
Dalia Daggag, Jovian Lazare, Tandabany Dinadayalane   +2 more
doaj   +1 more source

Compounds derived from flavonoids for photovoltaic applications. Computational chemical investigations

Journal of the Turkish Chemical Society, Section A: Chemistry, 2018
In this paper, we present a quantum chemical analysis of geometries and optoelectronic properties of a series of flavonoids and derivatives with the aim to research new molecules for applications in the fields of chemical physics and materials science ...
Rachid Kacimi, Tayeb Abram, Lahcen Bejjit, Mohammed Bouachrine   +3 more
doaj   +1 more source

Computational study of some potential inhibitors of COVID‐19: A DFT analysis

Quantitative Biology, 2022
Background There is an urgent demand of drug or therapy to control the COVID‐19. Until July 22, 2021 the worldwide total number of cases reported is more than 192 million and the total number of deaths reported is more than 4.12 million.
Prabhat Ranjan, Kumar Gaurav, Tanmoy Chakraborty   +2 more
doaj   +1 more source

HOMO–LUMO gaps for sub-graphenic and sub-buckytubic species [PDF]

Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2015
Many physico-chemical parameters of molecules are determined by or are dependent upon their HOMO–LUMO gaps, as has become of special interest for conjugated-carbon nano-structures obtained from graphene and its congeners. Here, we deduce an elegant yet simple upper-bound estimate to the HOMO–LUMO gaps for such molecular
Douglas J. Klein, Yujun Yang, Dong Ye
openaire   +1 more source

Theoretical investigations on the geometric and electronic structures of polyacetylene molecule under the influence of external electric field

eXPRESS Polymer Letters, 2009
The geometric and electronic structures of all-trans polyacetylene (PA) molecule in neutral, cationic, and anionic states have been studied theoretically by density functional theory method at the B3LYP/6-31+G* level.
doaj   +1 more source

Some quantum chemical study on the structural properties of three unsymmetrical Schiff base ligands

Bulletin of the Chemical Society of Ethiopia, 2014
In this studythree Schiff base ligands derived of 2-hydroxybenzaldehyde: H2L1, H2L2 and H2L3 have been subjected to theoretical studies by using density functional theory (DFT) calculations.
I. Sheikhshoaie, V. Saheb, P. Iranmanesh
doaj   +1 more source