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Volumn 127, Issue 19, 2005, Pages 7227-7234

Quantum-chemical predictions of absolute standard redox potentials of diverse organic molecules and free radicals in acetonitrile

Author keywords

[No Author keywords available]

Indexed keywords

BENCHMARKING; CHARGE TRANSFER; CONTINUUM MECHANICS; ELECTROCHEMISTRY; FREE RADICALS; IONIZATION; ORGANIC COMPOUNDS; REDOX REACTIONS;

EID: 18744394619     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja0421856     Document Type: Article
Times cited : (342)

References (68)
  • 1
    • 18744384240 scopus 로고    scopus 로고
    • note
    • The standard redox potential refers to standard conditions (i.e., all reactants are 1.0 M or 1 atm pressure, 298 K). Also, in the present study we only considered the single-electron transfer redox potentials. Furthermore, people have defined both the oxidation potentials and reduction potentials by using different orders of half reactions. In the present study, we only considered the redox potential that corresponded to the oxidation of a species. For the reduction of a species, one just needs to consider the oxidation of the corresponding reduced form.
  • 4
    • 0003648995 scopus 로고    scopus 로고
    • Photochemistry and Radiation Chemistry: Complementary Methods for the Study of Electron Transfer
    • American Chemical Society: Washington, DC
    • (c) Photochemistry and Radiation Chemistry: Complementary Methods for the Study of Electron Transfer; Wishart, J. F., Nocera, D. G., Eds.; Advances in Chemistry Series 254; American Chemical Society: Washington, DC, 1998.
    • (1998) Advances in Chemistry Series 254
    • Wishart, J.F.1    Nocera, D.G.2
  • 17
    • 18744415607 scopus 로고    scopus 로고
    • note
    • Due to the limitation of the computer resources, we only selected the compounds that contain no more than 12 non-hydrogen atoms. Moreover, we only selected the redox potentials corresponding to the one-electron transfer process.
  • 48
    • 0001057001 scopus 로고    scopus 로고
    • note
    • There are five solvation free energy data for acetonitrile that range from -3.57 to -5.33 kcal/mol (see: Hawkins, G. D.; Cramer, C. J.; Truhlar, D. G. J. Phys. Chem. B 1998, 102, 3257). It is not sensible to optimize the f value or to evaluate the solvation model using these five similar data.
  • 57
    • 18744413460 scopus 로고    scopus 로고
    • note
    • In calculating the entropy change, one needs to include an extra term (-RT In 4 = -0.04 eV) in addition to the standard thermal entropy terms. This term corresponds to the entropic contribution from the electronic spin degeneracy.
  • 59
    • 18744407179 scopus 로고    scopus 로고
    • note
    • + (0.1 M) versus NHE = +0.57 V.
  • 66
    • 18744364080 scopus 로고    scopus 로고
    • note
    • Only the carbon-centered free radicals are considered in the present study.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.