Results 11 to 20 of about 1,676,625 (151)

Single excitation energies obtained from the ensemble HOMO-LUMO gap: exact results and approximations [PDF]

open access: yes, 2022
In calculations based on density functional theory, the "HOMO-LUMO gap" (difference between the highest occupied and lowest unoccupied molecular orbital energies) is often used as a low-cost, ad hoc approximation for the lowest excitation energy. Here we
Stephen, Dale   +3 more
core   +3 more sources

Engineering the HOMO–LUMO gap of indeno[1,2b]fluorene [PDF]

open access: yes, 2022
A direct, efficient and versatile strategy for the modulation of optoelectronic and magnetic properties of indeno[1,2-b]fluorene has been developed. 4-Substituted-2,6-dimethylphenyl acetylene groups placed in the apical carbon of the five-membered rings ...
Edmund Leary   +32 more
core   +3 more sources

A Gaussian process regression (GPR) quest to predict HOMO-LUMO energy [PDF]

open access: yes, 2023
Machine learning methods employ statistical algorithms and pattern recognition techniques to learn patterns and make predictions based on statistical patterns.
MANJEET, BHATIA
core   +1 more source

Tuning the HOMO Energy of the Triarylamine Molecules with Orthogonal HOMO and LUMO Using Functional Groups [PDF]

open access: yes, 2023
Tuning the HOMO and LUMO energy strategically of triphenylamine derivatives plays an important role towards understanding and design of high performance organic photovoltaics.
Lichang, Wang   +5 more
core   +1 more source

Excited-state energy component analysis for molecules - Why the lowest excited state is not always the HOMO-LUMO transition [PDF]

open access: yes, 2023
The ability to tune excited-state energies is crucial to many areas of molecular design. In many cases this is done based on the energies of the highest occupied (HOMO) and lowest unoccupied (LUMO) molecular orbitals.
Patrick, Kimber, Felix, Plasser
core   +1 more source

Computational screening of chemical properties of molecule based on DFT Homo & Lumo through python tool. [PDF]

open access: yes, 2023
Computational chemistry software designed to compute the chemical properties of compounds falls under the category of dry research. The computational calculation of chemicals is a broad term.
Muhammad, Aziz
core   +1 more source

Investigate the electrical and thermoelectric properties of M@C60 where (M=Co, Ni): A DFT study [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة
Density functional theory combined with nonequivalent greens function was carried out to study the M@C60 single-molecule junctions between two gold electrodes, where M=Co and Ni.
Anhar alfahdawi, Alaa Al-Jobory
doaj   +1 more source

Solvents effects: Density Functional Theory studies of Trans-Cinnamaldehyde [PDF]

open access: yesشیمی کاربردی روز, 2016
In the present investigation, HOMO-LUMO energy gap, polarizability, structural parameters, molecular mass, hardness, chemical potential and electrophilicity index of the trans-cinnamaldehyde as one of the active ingredients of cinnamon in the gas phase ...
لیلی رحیمی اهر   +1 more
doaj   +1 more source

Facile Synthesis of 5-Aryl-N-(pyrazin-2-yl)thiophene-2-carboxamides via Suzuki Cross-Coupling Reactions, Their Electronic and Nonlinear Optical Properties through DFT Calculations

open access: yesMolecules, 2021
Synthesis of 5-aryl-N-(pyrazin-2-yl)thiophene-2-carboxamides (4a–4n) by a Suzuki cross-coupling reaction of 5-bromo-N-(pyrazin-2-yl)thiophene-2-carboxamide (3) with various aryl/heteroaryl boronic acids/pinacol esters was observed in this article.
Gulraiz Ahmad   +9 more
doaj   +1 more source

Acyclic molecules with greatest HOMO–LUMO separation [PDF]

open access: yes, 1999
In this paper, the acyclic Kekulean molecules with greatest HOMO–LUMO separation are determined.
Chang An   +3 more
core   +2 more sources

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