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 …

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 …

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 …

Employing molecular dynamics simulations and DFT calculations to elucidate the energetic, structural, and spectroscopic attributes of (poly) valines in water solution

RC Prado, K Mendanha, LBA Oliveira… - Chemical Physics …, 2024 - Elsevier
In this study, we explored how the growth of peptide chains containing valines impacts
nuclear magnetic resonance (NMR) and optical absorption spectra. Results stem from …

[HTML][HTML] TD-DFT absorption spectrum of (poly) threonine in water: A study combining molecular dynamics and quantum mechanics calculations

K Mendanha, RC Prado, LBA Oliveira… - Chemical Physics …, 2021 - Elsevier
We develop a study using Molecular Dynamics and DFT to investigate the absorption
spectrum of (Thr) n in-water. Results of MD-simulations characterize the solute-solvent …

TD-DFT and GIAO-NMR spectroscopy studies for maltose and (α-and β)-glucose in water solution using S-MC/QM polarization methodology

LBA Oliveira, G Colherinhas - Journal of Molecular Liquids, 2017 - Elsevier
We investigate the behavior of the spectroscopic properties of (α-) β-glucose and maltose in
water solution using the S-MC/QM method. TD-CAM-B3LYP/6-311++ G (2d, 2p) and TD …

Solvent effects on the spectroscopic properties of cannabinoids derivatives: A theoretical study using PCM

RC Prado, VS Filho, SA Portes… - … Journal of Quantum …, 2024 - Wiley Online Library
Abstract Using the Polarizable Continuum Model (PCM), we investigated the solvent effect
on the spectroscopic properties of three different groups of molecules with potential …

Theoretical analysis of the influence of C–HO bonds on the NMR constants of uracil in DMSO

R Gester, RSG Carrano, PF Provasi, C Bistafa… - Theoretical Chemistry …, 2020 - Springer
We combined different models of solvation and density functional theory calculations to
study the magnetic properties of uracil in the liquid dimethyl sulfoxide environment. Special …