Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 13, Issue 20, Pages 5724-5741Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.200700013
Keywords
bond theory; chemical bonds; electron localizability indicator; ELF (electron localization function); localized orbitals
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The novel functional electron localizability indicator is a useful tool for investigating chemical bonding in molecules and solids. In contrast to the traditional electron localization function (ELF), the electron localizability indicator is shown to be exactly decomposable into partial orbital contributions even though it displays at the single-determinantal level of theory the same topology as the ELF. This approach is generally valid for molecules and crystals at either the single-determinantal or the explicitly correlated level of theory. The advantages of the new approach are illustrated for the argon atom, homonuclear dimers N-2 and F-2, unsaturated hydrocarbons C2H4 and C6H6, and the transition-metal-containing molecules Sc-2(2+) and TiF4.
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