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Volumn 106, Issue 9, 2002, Pages 1850-1861

Nonlinear free energy relations for adiabatic proton transfer reactions in a polar environment. II. Inclusion of the hydrogen bond vibration

Author keywords

[No Author keywords available]

Indexed keywords

ACTIVATION ENERGY; ELECTRON TRANSITIONS; ELECTRONIC STRUCTURE; FREE ENERGY; HYDROGEN BONDS; PROTONS; QUANTUM THEORY;

EID: 0037035158     PISSN: 10895639     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp013425w     Document Type: Article
Times cited : (83)

References (90)
  • 4
    • 0001836104 scopus 로고
    • Cleland, W.W., O'Leary, M.H., Northrop, D.B., Eds.; University Park Press: Baltimore, MD
    • (d) Kresge, A.J. In Isotope Effects on Enzyme-Catalyzed Reactions; Cleland, W.W., O'Leary, M.H., Northrop, D.B., Eds.; University Park Press: Baltimore, MD, 1977; p 37.
    • (1977) Isotope Effects on Enzyme-Catalyzed Reactions , pp. 37
    • Kresge, A.J.1
  • 27
    • 0011086012 scopus 로고    scopus 로고
    • note
    • The treatment of ref 13 utilizes a curve-crossing formalism, in which the solvent - H-bond coordinate coupling arises from the mixing of the proton nuclear diabatic states, as opposed to the electronic mixing described here and in I. The curve-crossing picture can be recovered from the present picture by extracting the proton coupling from the proton potentials. The link between the two is provided by the fact that the electronic coupling determines the proton potentials which in turn determine the proton coupling.
  • 49
    • 0011089077 scopus 로고    scopus 로고
    • note
    • This feature is absent in the model calculations of ref 13, in which the basic model Hamiltonian is not constructed quantum mechanically, and the electronic coupling does not enter explicitly, and thus effects due to its variation are absent.
  • 50
    • 0011141750 scopus 로고    scopus 로고
    • note
    • 13,14.
  • 51
    • 0011083348 scopus 로고    scopus 로고
    • note
    • -1). Indeed, one might wish to quantize a portion of these librations in a more sophisticated treatment. However, this would require the introduction of more than one solvent coordinate in the analysis, and it is likely to be only worth doing in connection with a detailed realistic computer simulation.
  • 53
    • 0011125774 scopus 로고    scopus 로고
    • note
    • 27 where the quantum particle tunnels through the barrier in its coordinate.
  • 68
    • 0011089385 scopus 로고    scopus 로고
    • note
    • RXN = 0 for the intrinsically asymmetric case, but the deviation from 1/2 is small.
  • 69
    • 0011088988 scopus 로고    scopus 로고
    • note
    • A corresponding analysis of the complete thermally activated rate constant could be done with separate but identical decompositions for higher H-bond vibrational states (e.g. i = 1), where these relationships would be included with the ground-state case i = 0 in eqs 2.7 and 2.8.
  • 75
    • 0011081566 scopus 로고    scopus 로고
    • note
    • 31 However, eq 3.13 does not preclude exchange reactions and hence does not predict a proper Brønsted coefficient.
  • 79
    • 0011120181 scopus 로고    scopus 로고
    • note
    • 37 will thus only be correct for a symmetric reaction.
  • 80
    • 0011147995 scopus 로고    scopus 로고
    • note
    • 34.
  • 81
    • 0011108840 scopus 로고    scopus 로고
    • note
    • 18,20.
  • 82
    • 0011086013 scopus 로고    scopus 로고
    • note
    • In contrast to eq 3.13, the analysis in ref 18a gives a proper Bronsted coefficient for a symmetric reaction case, although the analysis is restricted to large solvent reorganization energy.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.