메뉴 건너뛰기




Volumn 126, Issue 7, 2007, Pages

Transition metal NMR chemical shifts from optimized effective potentials

Author keywords

[No Author keywords available]

Indexed keywords

APPROXIMATION THEORY; COMPLEXATION; EIGENVALUES AND EIGENFUNCTIONS; GRADIENT METHODS; NUCLEAR MAGNETIC RESONANCE; OPTIMIZATION; PROBABILITY DENSITY FUNCTION;

EID: 33847240470     PISSN: 00219606     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.2436876     Document Type: Article
Times cited : (20)

References (51)
  • 46
    • 33847198023 scopus 로고    scopus 로고
    • Exponents of s, p, and d functions are λ ns, λ np, and λ nd, where λ=2 is a universal base and ns, np, and nd are integers defined as follows. (a) Transition metals: -3≤ ns ≤+9, -3≤ np ≤+6, and -3≤ nd ≤+3; (b) Cl: -3≤ ns ≤+7, -3≤ np ≤+4, and -1≤ nd ≤+1; (c) C, O, F: -3≤ ns ≤+5, -2≤ np ≤+3, and -1≤ nd ≤+1; and (d) H: -2≤ ns ≤+3, -1≤ np ≤+1. Higher exponents were not used as they can lead to unphysical oscillations. For example, in Phys. Chem. Chem. Phys. 7, 2991 (2005), we performed OEP calculations on simple molecules. Close examination of the potentials reveals oscillatory behavior, which can be removed by eliminating high exponent functions from the potential expansion. The electron densities, orbital probability densities, HOMO-LUMO gaps, and NMR shielding constants presented in this earlier study are barely affected by the removal of this structure.
    • (2005) Phys. Chem. Chem. Phys. , pp. 2991


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.