Premium
A modified version of the electron localization function (ELF)
Author(s) -
Fuentealba P.
Publication year - 1998
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/(sici)1097-461x(1998)69:4<559::aid-qua13>3.0.co;2-v
Subject(s) - electron localization function , function (biology) , electron , physics , statistical physics , computational chemistry , chemistry , atomic physics , quantum mechanics , biology , evolutionary biology
Using some relationships derived from the density functional version of the virial theorem, an approximated kinetic energy density is constructed. This is used to implement a modified version of the electron localization function (ELF). Its principal differences with the original ELF are that it does not depend on the orbitals and it reduces to zero when the distance r to the nucleus goes to 0 or infinity. Otherwise, it reproduces all the properties of the ELF function. However, the conceptual interpretation of ELF as coming from the pair probability is lost. © 1998 John Wiley & Sons, Inc. Int J Quant Chem 69: 559–565, 1998