Natural Energy Decomposition Analysis: The Linear Response Electrical Self Energy
- 1 January 1996
- journal article
- research article
- Published by American Chemical Society (ACS) in The Journal of Physical Chemistry
- Vol. 100 (43), 17152-17156
- https://doi.org/10.1021/jp9612994
Abstract
An extension of the natural energy decomposition analysis (NEDA) is described that leads to a reduced, three-component treatment of ab initio molecular interaction potentials. These components include the classical electrical (static and induced) and quantum mechanical core (σ−σ) and charge transfer (σ−σ*) interactions. The electrical component is, in turn, represented by three terms: the static interaction of unperturbed fragment charge densities, a contribution involving polarized charge densities, and an electrical self polarization energy. Extended basis set calculations demonstrate the high numerical stability of the three-component NEDA approach. Applications are presented for the Li+(H2O) and water dimer complexes. The long-range behavior of the interaction potentials of these complexes is entirely determined by the classical electrical interaction of the fragments. Core and charge transfer effects are only significant for molecular separations within roughly 1 Å of equilibrium.Keywords
This publication has 21 references indexed in Scilit:
- Dication−Water Interactions: M2+(H2O)n Clusters for Alkaline Earth Metals M = Mg, Ca, Sr, Ba, and RaThe Journal of Physical Chemistry, 1996
- Natural Energy Decomposition Analysis: Explicit Evaluation of Electrostatic and Polarization Effects with Application to Aqueous Clusters of Alkali Metal Cations and NeutralsJournal of the American Chemical Society, 1996
- Cation−Ether Complexes in the Gas Phase: Bond Dissociation Energies and Equilibrium Structures of Li+[O(CH3)2]x, x = 1−4The Journal of Physical Chemistry, 1996
- Cation-Water Interactions: The M+(H2O)n Clusters for Alkali Metals, M = Li, Na, K, Rb, and CsThe Journal of Physical Chemistry, 1995
- An Ab Initio Investigation of the Structure and Alkali Metal Cation Selectivity of 18-Crown-6Journal of the American Chemical Society, 1994
- General atomic and molecular electronic structure systemJournal of Computational Chemistry, 1993
- Electron affinities of the first-row atoms revisited. Systematic basis sets and wave functionsThe Journal of Chemical Physics, 1992
- Intermolecular interactions from a natural bond orbital, donor-acceptor viewpointChemical Reviews, 1988
- Why do molecules interact? The origin of electron donor-acceptor complexes, hydrogen bonding and proton affinityAccounts of Chemical Research, 1977
- A new energy decomposition scheme for molecular interactions within the Hartree‐Fock approximationInternational Journal of Quantum Chemistry, 1976