Topological reaction sites–very strong chalcogen bonds

E Alikhani, F Fuster, B Madebene… - Physical Chemistry …, 2014 - pubs.rsc.org
The analysis of interactions in complexes of S (CN) 2, Se (CN) 2, SFCl and SeFCl with F−
and Cl− anions is performed here. The sulphur and selenium atoms act in these complexes …

Electronic Force Density Fields: Insights into Partial Bonds, Transition States, and Chemical Structure Evolution

SV Kartashov, AP Fedonin… - The Journal of Physical …, 2024 - ACS Publications
This paper presents the quantum-topological binding approach, in which the electrostatic
and total static force density fields, F es (r) and F (r), together with the electron density …

Following the Molecular Mechanism for the NH3 + LiH → LiNH2 + H2 Chemical Reaction: A Study Based on the Joint Use of the Quantum Theory of Atoms in …

J Andres, S Berski, J Contreras-García… - The Journal of …, 2014 - ACS Publications
The molecular mechanism for the NH3+ LiH→ LiNH2+ H2 reaction has been elucidated by
the combined use of quantum theory of atoms in molecules (QTAIM) and noncovalent …

Curly arrows, electron flow, and reaction mechanisms from the perspective of the bonding evolution theory

J Andrés, P González-Navarrete, VS Safont… - Physical Chemistry …, 2017 - pubs.rsc.org
Despite the usefulness of curly arrows in chemistry, their relationship with real electron
density flows is still imprecise, and even their direct connection to quantum chemistry is still …

Understanding Hygroscopicity of Theophylline via a Novel Cocrystal Polymorph: A Charge Density Study

SA Stanton, JJ Du, F Lai, G Stanton… - The Journal of …, 2021 - ACS Publications
The charge density distribution in a novel cocrystal (1) complex of 1, 3-dimethylxanthine
(theophylline) and propanedioic acid (malonic acid) has been determined. The molecules …

Rationalizing the Catalytic Activity of Copper in the Cycloaddition of Azide and Alkynes (CuAAC) with the Topology of ∇2ρ(r) and ∇∇2ρ(r)

S Calvo-Losada, MS Pino-González… - The Journal of Physical …, 2015 - ACS Publications
The distinct role of the Cu (I) in the Huisgen dipolar cycloaddition of azides to alkynes
(denoted as CuAAC) is disclosed by following the evolution of the topology of the Laplacian …

Laplacian of the Hamiltonian kinetic energy density as an indicator of binding and weak interactions

P Carpio‐Martínez, JE Barquera‐Lozada… - …, 2020 - Wiley Online Library
The kinetic energy is the center of a controversy between two opposite points of view about
its role in the formation of a chemical bond. One school states that a lowering of the kinetic …

Origin of the photoinduced geometrical change of copper (I) complexes from the quantum chemical topology view

L Gutiérrez‐Arzaluz, DI Ramírez‐Palma… - … A European Journal, 2019 - Wiley Online Library
Abstract Copper (I) complexes (CICs) are of great interest due to their applications as redox
mediators and molecular switches. CICs present drastic geometrical change in their excited …

From the Linnett–Gillespie model to the polarization of the spin valence shells of metals in complexes

DI Ramírez-Palma, F Cortés-Guzmán - Physical Chemistry Chemical …, 2020 - pubs.rsc.org
In this paper, we present a novel approach to track the origin of the metal complex structure
from the topology of the α and β spin densities as an extension of the Linnett–Gillespie …

Structural and bond evolutions during a chemical reaction

P Carpio-Martínez, F Cortés-Guzmán - Advances in Quantum Chemical …, 2023 - Elsevier
Bond-breaking and bond-forming processes are essential to describe chemical reactions;
however, a rigorous theoretical approach is needed to unequivocally define them. Herewith …