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Volumn 110, Issue 24, 1999, Pages 11936-11949

The 57Fe nuclear magnetic resonance shielding in ferrocene revisited. A density-functional study of orbital energies, shielding mechanisms, and the influence of the exchange-correlation functional

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EID: 0001239906     PISSN: 00219606     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.479133     Document Type: Article
Times cited : (79)

References (101)
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    • We used the standard ADF basis sets IV (Fe) and V (C, O, and H). These are uncontracted triple-ζ valence basis sets that contain one (Fe) or two (C, O, H) sets of polarization functions. The atomic orbitals up to and including the 2p shell on Fe, and the 1s shell on O and C were considered as core and treated by the frozen core approximation (Ref. 58). A set of auxilary s, p, d, f, and g STO functions, centered on all nuclei, is part of the standard basis sets. It was employed to fit the electron density and to present the density dependent Coulomb and XC potentials accurately in each SCF cycle (Ref. 67).
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    • (0) if the whole expression Eq. (9) is used, rather than the approximation Eq. (12).
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