Computational enzymology and organophosphorus degrading enzymes: promising approaches toward remediation technologies of warfare agents and pesticides

TC Ramalho, AA de Castro, DR Silva… - Current Medicinal …, 2016 - ingentaconnect.com
The re-emergence of chemical weapons as a global threat in hands of terrorist groups,
together with an increasing number of pesticides intoxications and environmental …

Solvent effects in emission spectroscopy: A Monte Carlo quantum mechanics study of the shift of formaldehyde in water

K Coutinho, S Canuto - The Journal of Chemical Physics, 2000 - pubs.aip.org
Supermolecular calculations that treat both the solute and the solvent quantum-
mechanically are performed to analyze the solvatochromism of the first emission transition of …

A Monte Carlo-quantum mechanics study of the solvatochromic shifts of the lowest transition of benzene

K Coutinho, S Canuto, MC Zerner - The Journal of Chemical Physics, 2000 - pubs.aip.org
We examine the spectroscopic red shifts that occur when benzene is dissolved in (liquid)
benzene, in cyclohexane, in carbon tetrachloride, and in water. For this we develop a mixed …

Density functional self-consistent quantum mechanics/molecular mechanics theory for linear and nonlinear molecular properties: Applications to solvated water and …

CB Nielsen, O Christiansen, KV Mikkelsen… - The Journal of chemical …, 2007 - pubs.aip.org
A combined quantum mechanics/molecular mechanics (QM/MM) method is described,
where the polarization between the solvent and solute is accounted for using a self …

Fast electron correlation methods for molecular clusters in the ground and excited states

S Hirata, M Valiev, M Dupuis, SS Xantheas… - Molecular …, 2005 - Taylor & Francis
An efficient and accurate electronic structure method for clusters of weakly interacting
molecules has been proposed, on the basis of the pair-interaction method of Kitaura et al …

Solvent effects on the UV-visible absorption spectrum of benzophenone in water: A combined Monte Carlo quantum mechanics study including solute polarization

HC Georg, K Coutinho, S Canuto - The Journal of chemical physics, 2007 - pubs.aip.org
The entire ultraviolet-visible absorption spectrum of benzophenone in water is studied and
compared with the same spectrum in gas phase. Five transitions are considered, and the …

New approach to instantaneous polarizable electrostatic embedding of the solvent

MB Kiataki, MTN Varella, K Coutinho - Journal of Molecular Liquids, 2023 - Elsevier
The sequential quantum mechanics/molecular mechanics (S-QM/MM) method efficiently
computes solvent effects on the electronic properties of solutes. The protocol involves two …

A subsystem density-functional theory approach for the quantum chemical treatment of proteins

CR Jacob, L Visscher - The Journal of chemical physics, 2008 - pubs.aip.org
We present an extension of the frozen-density embedding (FDE) scheme within density-
functional theory [TA Wesolowski and A. Warshel, J. Phys. Chem. 97, 8050 (1993)] that can …

Ab initio calculation of hydrogen bonds in liquids: A sequential Monte Carlo quantum mechanics study of pyridine in water

T Malaspina, K Coutinho, S Canuto - The Journal of chemical physics, 2002 - pubs.aip.org
A systematic procedure based on the sequential Monte Carlo quantum mechanics (S-
MC/QM) methodology has been used to obtain hydrogen bond strength and structures in …

Solvent effects on Stokes shifts, and NLO response of thieno [3, 4-b] pyrazine: A comprehensive QM/MM investigation

V Manzoni, R Gester, AR da Cunha… - Journal of Molecular …, 2021 - Elsevier
The analysis of solvent effects on the fluorescence and nonlinear optical (NLO) response of
thieno [3, 4-b] pyrazine was performed using the sequential Monte Carlo/Quantum …