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Volumn 132, Issue 35, 2010, Pages 12299-12306

Facile C-H bond cleavage via a proton-coupled electron transfer involving a C-H⋯CuIIinteraction

Author keywords

[No Author keywords available]

Indexed keywords

ACTIVATION ANALYSIS; CHEMICAL ACTIVATION; COPPER; DENSITY FUNCTIONAL THEORY; ELECTRON SPECTROSCOPY; ELECTRON SPIN RESONANCE SPECTROSCOPY; ELECTRON TRANSITIONS; ELECTRONS; MAGNETIC RESONANCE; PARAMAGNETIC RESONANCE;

EID: 77956257479     PISSN: 00027863     EISSN: 15205126     Source Type: Journal    
DOI: 10.1021/ja101599e     Document Type: Article
Times cited : (132)

References (65)
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  • 15
    • 85043047558 scopus 로고    scopus 로고
    • For examples of C-H activation by first-row Ni, Mn, Fe, and Cu, see refs 16-19.
    • For examples of C-H activation by first-row Ni, Mn, Fe, and Cu, see refs 16-19.
  • 33
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    • Frisch, M. J.; et al. Gaussian 03, revision C02; Gaussian Inc.: Wallingford, CT, 2004.
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    • See Supporting Information.
    • See Supporting Information.
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    • (1992) Physical Methods for Chemists
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    • (2008) Kintecus
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    • Electrophilic metallation would also involve a significantly shorter Cu-C bond distances (< 2.000 Å) than those found by EPR and DFT. See, for example, ref 20,21 and the following
    • Electrophilic metallation would also involve a significantly shorter Cu-C bond distances (< 2.000 Å) than those found by EPR and DFT. See, for example, ref 20,21 and the following: Furuta, H., Ishizuka, T., Osuka, A., Uwatoko, Y., and Ishikawa, Y. Angew. Chem., Int. Ed. 2001, 40, 2323-2325
    • (2001) Angew. Chem., Int. Ed. , vol.40 , pp. 2323-2325
    • Furuta, H.1    Ishizuka, T.2    Osuka, A.3    Uwatoko, Y.4    Ishikawa, Y.5
  • 57
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    • II-containing species other than 1 do not interfere with the absorbance at 425 nm of 1 due to low concentration and/or low extintion coefficients (Figure S11).
    • II-containing species other than 1 do not interfere with the absorbance at 425 nm of 1 due to low concentration and/or low extintion coefficients (Figure S11).
  • 61
    • 85043062221 scopus 로고    scopus 로고
    • These data are most consistent with a concerted electron and proton transfer, described here as a PCET, rather than a stepwise ET-PT or PT-ET mechanism.
    • These data are most consistent with a concerted electron and proton transfer, described here as a PCET, rather than a stepwise ET-PT or PT-ET mechanism.
  • 62
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    • 2O or aqueous buffer causes slower, non-first order decay of 1 (Figure S12, Supporting Information).
    • 2O or aqueous buffer causes slower, non-first order decay of 1 (Figure S12, Supporting Information).
  • 63
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    • Although base-assisted deprotonation could be a priori envisioned on the basis of the unchanged redox state for the nickel(II) ion and the large KIE value, it seems unlikely, as added base does not accelerate the formation of 4.
    • Although base-assisted deprotonation could be a priori envisioned on the basis of the unchanged redox state for the nickel(II) ion and the large KIE value, it seems unlikely, as added base does not accelerate the formation of 4.


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