Journal
JOURNAL OF PHYSICAL CHEMISTRY A
Volume 110, Issue 47, Pages 12864-12869Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp063607w
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Binding energies of first row diatomics are revisited within the interacting quantum atoms ( IQA) approach. This is a formalism in chemical bonding theory based upon the quantum theory of atoms in molecules. It is characterized by the preservation of the energetic identity of atoms within molecules. Quantum mechanically computed binding energies are recovered in IQA as a sum of small atomic deformation energies and large pairwise interaction terms. We show how this partition responds faithfully to chemical intuition, and how the different evolution of deformations and interactions accounts in a unified manner for the subtle variations of the binding energy of these molecules.
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