6533b7dafe1ef96bd126e255

RESEARCH PRODUCT

Comparison of electron density properties in frozen and relaxed electronic distributions.

Elies MolinsEnrique EspinosaIbon AlkortaIgnasi MataJosé Elguero

subject

Computational MathematicsRange (particle radiation)Electron densityChemistryPosition (vector)Atoms in moleculesGeneral ChemistryElectronBond formationAtomic physicsLaplace operatorElectron localization function

description

Two kinds of electron densities for several small molecules (H(2), FH, CH(3)CH(3), CH(3)NH(2), CH(3)OH, and CH(3)F) have been generated for a wide range of bond distances. The first one, as the sum of the electron density of the isolated fragments, and the second one by optimizing the electron density at each given geometrical disposition. A number of properties of this two electronic distributions have been compared (position of the bond critical points, electron density, Laplacian, curvatures, and local energies). The differences, associated to the bond formation, are found to be very important for most of the cases.

10.1002/jcc.10204https://pubmed.ncbi.nlm.nih.gov/12594784