Results 11 to 20 of about 89,778 (250)

Acyclic molecules with greatest HOMO–LUMO separation

open access: yesDiscrete Applied Mathematics, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhang, FJ, An, C
core   +4 more sources

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

open access: yesJournal of Materials Chemistry C, 2022
The insertion of phenyl acetylenes at the reactive positions of indeno[1,2-b]fluorene leads to tune its optoelectronic and magnetic properties. Furthermore, its single-molecule conductance has been investigated for the first time.
Raquel Casares   +12 more
openaire   +6 more sources

Estimation of the HOMO-LUMO Separation

open access: yesCroatica Chemica Acta, 1980
Bounds and approximate topological formulas are derived for the -HOMO-LUMO separation of alternant and non-alternant conjugated hydrocarbons and heteroconjugated systems.
Graovac, A., Gutman, I.
openaire   +3 more sources

On the HOMO-LUMO Separation in Fullerenes

open access: yesCroatica Chemica Acta, 1993
The isumers uf a given fullerene C„ cuuld be divided into subsets, each characterized by two numbers, p and q. The former denotes the number of bonds shared by two fused pentagons and the latter denotes the number of vertices being common to the triplets of pentagons.
Babić, D., Graovac, A., Trinajstić, N.
openaire   +3 more sources

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

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   +2 more sources

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

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

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

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

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

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

Assessment of electroencephalography modification by antipsychotic drugs in patients with schizophrenia spectrum disorders using frontier orbital theory: A preliminary study

open access: yesNeuropsychopharmacology Reports, 2023
Aim Schizophrenia is characterized by an abnormality in electroencephalography (EEG), which can be affected by antipsychotic drugs. Recently, the mechanism underlying these EEG alterations in schizophrenia patients was reframed from the perspective of ...
Takashi Ozaki   +5 more
doaj   +1 more source

Deep learning for development of organic optoelectronic devices: efficient prescreening of hosts and emitters in deep-blue fluorescent OLEDs

open access: yesnpj Computational Materials, 2022
The highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energies, which are key factors in optoelectronic devices, must be accurately estimated for newly designed materials.
Minseok Jeong   +6 more
doaj   +1 more source

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