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Ab initio Hartree-Fock modelling of zeolites: application to silico-chabazite

E Aprà, R Dovesi, C Freyria-Fava, C Pisani, C Roetti and V R Saunders

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An ab initio periodic Hartree-Fock study of silico-chabazite is presented. Complete geometry optimization has been performed using both a minimal STO-3G and an extended (split-valence plus polarization functions) basis set; the results are similar to those obtained with a semi-classical approach based on a model potential. The more sophisicated basis set has been adopted for characterizing the ground-state wave-function. The electrostatic potential within the main cavity is calculated and analyzed


PACS

71.15.Ap Basis sets (LCAO, plane-wave, APW, etc.) and related methodology (scattering methods, ASA, linearized methods, etc.)

71.20.-b Electron density of states and band structure of crystalline solids

Subjects

Condensed matter: electrical, magnetic and optical

Dates

Issue 3 (April 1993)



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