Theoretical investigation on the linear and nonlinear optical properties of DAPSH crystal

C Valverde, R Medeiros, LR Franco, FAP Osório… - Scientific Reports, 2023 - nature.com
The linear polarizability, first and second hyperpolarizabilities of the asymmetric unit of
DAPSH crystal are studied and compared with available experimental results. The …

A6H polypeptide membranes: Molecular dynamics simulation, GIAO-DFT-NMR and TD-DFT spectroscopy analysis

D Andrade, G Colherinhas - Journal of Molecular Liquids, 2020 - Elsevier
Abstract In this work, Molecular Dynamics simulation (MD), GIAO-DFT-NMR, and TD-DFT
results are obtained to study structural, energetic, dynamics, and spectroscopy properties of …

Updating atomic charge parameters of aliphatic amino acids: a quest to improve the performance of molecular modeling via sequential molecular dynamics and DFT …

G Colherinhas - Physical Chemistry Chemical Physics, 2021 - pubs.rsc.org
In this work, we observe the behavior of the dipole moment, atomic charges, solute–solvent
interactions and NMR spectroscopy of aliphatic amino acids in a water solution via the …

Can CHARMM36 atomic charges described correctly the interaction between amino acid and water molecules by molecular dynamics simulations?

LBA Oliveira, G Colherinhas - Journal of Molecular Liquids, 2020 - Elsevier
Here we present calculations of electrical, energetic and magnetic properties of the amino
acids arginine, aspartic acid, glutamic acid, histidine and lysine in water solution. The …

Update of CHARMM36's atomic charges for aromatic amino acids in water solution simulations and spectroscopy analysis via sequential molecular dynamics and DFT …

G Colherinhas - Journal of Molecular Liquids, 2021 - Elsevier
In this theoretical work we develop simulations of classical molecular dynamics sequentially
combined with quantum calculations to obtain an update of the atomic charges of the …

Hydroxylic, sulfur-containing and amidic amino acids in water solution: Atomic charges parameters for computational modeling using molecular dynamics simulation …

LBA Oliveira, WB Cardoso, G Colherinhas - Journal of Molecular Liquids, 2021 - Elsevier
In the present paper, we investigated the polarization effects on different amino acids (AAs)
structures, ie, Serine, Threonine, Cysteine, Methionine, Asparagine, and Glutamine. Initially …

[HTML][HTML] Characterization and rheological behavior of vitamin E nanoemulsions prepared by phase inversion composition technique

V Prakash, L Parida - Results in Engineering, 2023 - Elsevier
Many food, pharmaceutical, and cosmetic products are fabricated as nanoemulsions of
vitamin E, a vital food micronutrient soluble in oil. Nanoemulsion production, maintenance …

Fullerene C60 spectroscopy in [BMIM][PF6] ionic liquid: Molecular dynamics study using polarization effects

WB Cardoso, G Colherinhas - Journal of Molecular Structure, 2022 - Elsevier
We employ molecular dynamics (MD) simulations to assess the electrical behavior of the
atomic charges of a fullerene immersed in an ionic liquid (and water). From solute-solvent …

Understanding Nonlinear Optical Phenomena in N-Pyrimidinyl Stilbazolium Crystals via a Self-Consistent Electrostatic Embedding–DFT Approach

R Medeiros, LR Franco, FAP Osório, C Valverde… - ACS …, 2024 - ACS Publications
Density functional theory (DFT) and time-dependent density functional theory (TD-DFT) have
been used to investigate the nonlinear optical (NLO) properties of phenolic N-pyrimidinyl …

Solvent effects on the spectroscopic properties of Damascone derivatives: A sequential Monte Carlo/Quantum Mechanics study

AR de Almeida, LBA Oliveira, G Colherinhas - Chemical Physics Letters, 2019 - Elsevier
Abstract The Sequential Monte Carlo/Quantum Mechanics approach was used for
investigate the solvent effect on the solute-solvent structure and spectroscopic properties of …