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Volumn 7, Issue 20, 2001, Pages 4487-4494

Medium effects on 51V NMR chemical shifts: A density functional study

Author keywords

Density functional calculations; Molecular dynamics; NMR spectroscopy; Solvent effects; Vanadium

Indexed keywords

COMPUTER SIMULATION; NUCLEAR MAGNETIC RESONANCE; POLARIZATION; THERMAL EFFECTS; VANADIUM; WATER;

EID: 0035886799     PISSN: 09476539     EISSN: None     Source Type: Journal    
DOI: 10.1002/1521-3765(20011015)7:20<4487::AID-CHEM4487>3.0.CO;2-G     Document Type: Article
Times cited : (112)

References (67)
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    • Empirical MD simulations have also been used in the evaluation of solvent effects on the fluorine shielding in fluorobenzene: E. Y. Lau, J. T. Gerig, J. Am. Chem. Soc. 1996, 118, 1194.
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    • Lau, E.Y.1    Gerig, J.T.2
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    • 0001013480 scopus 로고    scopus 로고
    • Medium effects on chemical shifts can also be modeled for static clusters of increasing size in the quantum cluster equilibrium method, see for instance: R. Ludwig, F. Weinhold, T. C. Farrar, Mol. Phys. 1999, 97, 479.
    • (1999) Mol. Phys. , vol.97 , pp. 479
    • Ludwig, R.1    Weinhold, F.2    Farrar, T.C.3
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    • on Computational Transition Metal Chemistry
    • b) See also the special issue of Chem. Rev. 2000, 100, 351 on Computational Transition Metal Chemistry.
    • (2000) Chem. Rev. , vol.100 , Issue.SPEC. ISSUE , pp. 351
  • 28
    • 0002793279 scopus 로고    scopus 로고
    • Vanadium Compounds, Chemistry, Biochemistry, and Therapeutic Applications
    • See for instance: Vanadium Compounds, Chemistry, Biochemistry, and Therapeutic Applications (Eds. : A. S. Tracey, D. C. Crans), ACS Symp. Ser. 1998, 711.
    • (1998) ACS Symp. Ser. , vol.711
    • Tracey, A.S.1    Crans, D.C.2
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    • 0003000283 scopus 로고    scopus 로고
    • note
    • The large standard deviations are a consequence of the classical propagation, which samples too many configurations near the potential wells as a result of the low velocities in those regions; in the vibrational ground state, the main contributions arise from configurations near the equilibrium structure.
  • 53
    • 0002918935 scopus 로고    scopus 로고
    • note
    • It should be noted that this value only represents the "classical" thermal effect and is not averaged over the zero-point motion. For first-row nuclei, such zero-point effects are larger than that of the temperature, see for instance ref. [5].
  • 54
    • 0029436363 scopus 로고
    • (Eds.: H. Sigel, A. Sigel), Marcel Dekker, New York
    • See for instance D. Rehder in Metal Ions in Biological Systems, Vol. 31 (Eds.: H. Sigel, A. Sigel), Marcel Dekker, New York, 1995, p. 1.
    • (1995) Metal Ions in Biological Systems , vol.31 , pp. 1
    • Rehder, D.1
  • 57
    • 0002927683 scopus 로고    scopus 로고
    • note
    • 2O cluster such a minimum can also be located with a CP optimization; during a CPMD run at 300 K, however, one of the water molecules dissociates from this equilibrium configuration (in less than 1 ps) and forms a hydrogen bond to the second water molecule present.
  • 61
    • 0033580290 scopus 로고    scopus 로고
    • The classical propagation makes the conventional CPMD method not very well suited for the study of H transfer processes, for which quantum effects on the nuclei should be included explicitly (for instance, by path-integral methods; for a recent application see: D. Marx, M. E. Tuckerman, J. Hutter, M. Parrinello, Nature 1999, 397, 601). In any event, the occurrence of a deuterium transfer on the classical energy surface suggests that this is indeed a facile process.
    • (1999) Nature , vol.397 , pp. 601
    • Marx, D.1    Tuckerman, M.E.2    Hutter, J.3    Parrinello, M.4
  • 67
    • 0002920811 scopus 로고    scopus 로고
    • note
    • 2O.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.