Abstract
Charge-overlap cluster calculations [Wheatley, R, J. Chem. Phys. Lett. 1998, 294, 487], in which the electronic structure of a central ion is modified self-consistently by the frozen densities of its neighbors, are used to model induced dipoles in the condensed-phase alkali metal halides. Two distinct effects of overlap are identified: exchange-repulsion and Coulomb corrections. For anions, both substantially reduce the dipole from its asymptotic value; for cations, the two short-range effects are opposed, producing small net short-range corrections of different sign for different alkali metal cations.
Original language | English |
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Pages (from-to) | 4136-4142 |
Number of pages | 7 |
Journal | JOURNAL OF PHYSICAL CHEMISTRY A |
Volume | 105 |
Issue number | 16 |
DOIs | |
Publication status | Published - 26 Apr 2001 |
Keywords
- IONIC SYSTEMS
- AB-INITIO
- QUADRUPOLE POLARIZATION
- INTERIONIC INTERACTIONS
- DIPOLE POLARIZABILITY
- CRYSTAL-STRUCTURE
- OVERLAP MODEL
- FLUORIDE-ION
- ALKALI
- DYNAMICS