[PDF][PDF] HEMES REVISITED BY DENSITY FUNCTIONAL APPROACHES.

R SILAGHI-DUMITRESCU… - Revue Roumaine de …, 2004 - revroum.lew.ro
density functional calculations (BP86/6-31G**) on formally ferrous-dioxygen, ferric-peroxo
and ferric-hydroperoxo complexes of hemes … adducts of the heme enzymes examined in the …

Lessons on O2 and NO bonding to heme from ab initio multireference/multiconfiguration and DFT calculations

S Shaik, H Chen - JBIC Journal of Biological Inorganic Chemistry, 2011 - Springer
Density functional theory (DFT) has ushered a renaissance in bioinorganic chemistry [1]. As
a stand-alone quantum mechanical (QM) theory, it … system was revisited using the VB results. …

Spin-Forbidden Ligand Binding to the Ferrous− Heme Group: Ab Initio and DFT Studies

N Strickland, JN Harvey - The Journal of Physical Chemistry B, 2007 - ACS Publications
… −heme group with CO, NO, and H 2 O ligands have been calculated using density functional
theory (… , reported here, have led us to revisit our previous characterization of the potential …

[PDF][PDF] HEMES REVISITED BY DENSITY FUNCTIONAL APPROACHES. 2. A PARADIGM FOR AXIAL LIGATION IN HEMOPROTEINS

R SILAGHI-DUMITRESCU - UNIVERSITATIS BABEŞ–BOLYAI - researchgate.net
… ” theory, we report DFT geometry optimization results for models consisting of a histidine-ligated
b heme … These heme b models mimic the nitric oxide adducts of myoglobin, and, in …

The 1994 Alcan Award Lecture Density functional theory as a practical tool in studies of organometallic energetics and kinetics. Beating the heavy metal blues with …

T Ziegler - Canadian journal of chemistry, 1995 - cdnsciencepub.com
… An evaluation is given of approximate density functional theory as a practical tool in studies
on organometallic energetics and kinetics. The evaluation covers electronic excitations and …

Revisiting heme mechanisms. A perspective on the mechanisms of nitric oxide synthase (NOS), heme oxygenase (HO), and cytochrome P450s (CYP450s)

Y Zhu, RB Silverman - Biochemistry, 2008 - ACS Publications
Density functional theory calculations indicate that the product of hydrogen atom abstraction
from the N−H of l-NHA (7) is similar in energy to the product of hydrogen atom abstraction …

Toward the next generation of density functionals: Escaping the zero-sum game by using the exact-exchange energy density

M Kaupp, A Wodyński, AV Arbuznikov… - Accounts of Chemical …, 2024 - ACS Publications
Revisiting spin symmetry breaking and hyperfine couplings in transition-metal complexes
using density functionals … on the development of methods in density functional theory, with …

Choice of functional for iron porphyrin density functional theory studies: Geometry, spin-state, and binding energy analysis

S Ovalle, C Malardier-Jugroot - Computational and Theoretical Chemistry, 2022 - Elsevier
… Iron porphyrine with an axial imidazole group (FePIm) used as a model of heme in this work.
(a): axial view of the iron porphyrin plane. (b): lateral view of the iron porphyrin plane with …

Comment on “Benchmarking basis sets for density functional theory thermochemistry calculations: Why unpolarized basis sets and the polarized 6-311G family should …

M Gray, PE Bowling, JM Herbert - The Journal of Physical …, 2024 - ACS Publications
Recently, McKemmish and co-workers 1 reported bench-mark calculations on the performance
of density functional theory (DFT) for thermochemistry and barrier heights, using a variety …

Revisiting the role of exact exchange in DFT spin-state energetics of transition metal complexes

M Radoń - Physical Chemistry Chemical Physics, 2014 - pubs.rsc.org
… , as revealed from the presented studies of heme and non-heme complexes, and of metal …
challenge for wave function theory as well as density functional theory (DFT) methods. The …