Journal ArticleDOI
A Bond Path: A Universal Indicator of Bonded Interactions
TLDR
In this paper, the Ehrenfest force acting on an element of ρ(r) and the virial field that determines its potential energy are obtained from equations of motion for the electronic momentum and virial operators, respectively.Abstract:
The quantum mechanics of proper open systems yields the physics that governs the local behavior of the electron density, ρ(r). The Ehrenfest force F(r) acting on an element of ρ(r) and the virial field ν(r) that determine its potential energy are obtained from equations of motion for the electronic momentum and virial operators, respectively. Each is represented by a “dressed” density, a distribution in real space that results from replacing the property in question for a single electron with a corresponding density that describes its average interaction with all of the remaining particles in the system. All bond paths, lines of maximum density linking neighboring nuclei in a system in stable electrostatic equilibrium, have a common physical origin in terms of F(r) and ν(r), regardless of the nature of the interaction. Each is homeomorphically mirrored by a virial path, a line of maximally negative potential energy density linking the same nuclei. The presence of a bond path and its associated virial path...read more
Citations
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Journal ArticleDOI
Revealing noncovalent interactions.
Erin R. Johnson,Shahar Keinan,Paula Mori-Sánchez,Julia Contreras-García,Aron J. Cohen,Weitao Yang +5 more
TL;DR: This work develops an approach to detect noncovalent interactions in real space, based on the electron density and its derivatives, which provides a rich representation of van der Waals interactions, hydrogen bonds, and steric repulsion in small molecules, molecular complexes, and solids.
Journal ArticleDOI
The hydrogen bond in the solid state.
TL;DR: The hydrogen bond is the most important of all directional intermolecular interactions, operative in determining molecular conformation, molecular aggregation, and the function of a vast number of chemical systems ranging from inorganic to biological.
Journal ArticleDOI
Jaguar: A high-performance quantum chemistry software program with strengths in life and materials sciences
Art D. Bochevarov,Edward Harder,Thomas F. Hughes,Jeremy R. Greenwood,Dale A. Braden,Dean M. Philipp,David Rinaldo,Mathew D. Halls,Jing Zhang,Richard A. Friesner +9 more
TL;DR: Jaguar as mentioned in this paper is an ab initio quantum chemical program that specializes in fast electronic structure predictions for molecular systems of medium and large size, such as density functional theory (DFT) and local second-order Moller-Plesset perturbation theory.
Journal ArticleDOI
What is the covalency of hydrogen bonding
TL;DR: The decomposition of the interaction energy is useful to analyze hydrogen bonding and particularly to answer the question of what does the covalency of hydrogen bonding mean.
Journal ArticleDOI
The Lewis Model and Beyond
TL;DR: The electron pair density, in conjunction with the definition of an atom in a molecule, enables one to determine the average number of electron pairs that are localized to each atom and the number that are formed between any given pair of atoms as mentioned in this paper.
References
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Book
Introduction to the mechanics of a continuous medium
TL;DR: In this article, the authors propose a linearized theory of elasticity for tensors, which they call Linearized Theory of Elasticity (LTHE), which is based on tensors and elasticity.
Journal ArticleDOI
Forces in molecules
TL;DR: In this article, it was shown that the force on a nucleus in an atomic system is just the classical electrostatic force that would be exerted on this nucleus by other nuclei and by the electrons' charge distribution.
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The characterization of atomic interactions
Richard F. W. Bader,Hanno Essén +1 more
TL;DR: In this paper, the authors derived the sign of the Laplacian of the charge density ρ to the relative magnitudes of the local contributions of the potential and kinetic energy densities to their virial theorem averages.