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Volumn 132, Issue 22, 2010, Pages 7605-7616

Manganese catalysts for C-H activation: An experimental/theoretical study identifies the stereoelectronic factor that controls the switch between hydroxylation and desaturation pathways

Author keywords

[No Author keywords available]

Indexed keywords

ACTIVE SPECIES; C-H ACTIVATION; C-H BOND; CH-BOND ACTIVATION; DENSITY FUNCTIONAL THEORY CALCULATIONS; DESATURASE; DESATURATION; DIHYDROPHENANTHRENE; ENZYME ACTIVE SITES; H-ABSTRACTION; HYDROXYLASES; OH GROUP; ORGANIC RADICALS; PRODUCT MIXTURE; ROTATIONAL ORIENTATION; SYNTHETIC MANGANESE CATALYSTS; TETRAPHENYL PORPHYRINS;

EID: 77953109653     PISSN: 00027863     EISSN: 15205126     Source Type: Journal    
DOI: 10.1021/ja908744w     Document Type: Article
Times cited : (94)

References (107)
  • 39
    • 0003641908 scopus 로고    scopus 로고
    • Kadish, K. M., Smith, K. M., and Guilard, R., Eds.; Academic Press: San Diego, Chapter 31
    • Meunier, B., Robert, A., Genevieve, P., and Bernadou, J. In The Porphyrin Handbook; Kadish, K. M., Smith, K. M., and Guilard, R., Eds.; Academic Press: San Diego, 2000; Vol. 4, Chapter 31.
    • (2000) The Porphyrin Handbook , vol.4
    • Meunier, B.1    Robert, A.2    Genevieve, P.3    Bernadou, J.4
  • 83
    • 77953095205 scopus 로고    scopus 로고
    • Both geometry scans and direct TS search calculations could not be completed because we were unable to converge the wave function, which may be due to the multireference character of the triplet
    • Both geometry scans and direct TS search calculations could not be completed because we were unable to converge the wave function, which may be due to the multireference character of the triplet.
  • 86
    • 77953095813 scopus 로고    scopus 로고
    • note
    • -1) confirm that this process is essentially isothermic and barrier-free, as suggested by the relaxed energy scan of Figure 3. See the Supporting Information for further details.
  • 87
    • 77953084624 scopus 로고    scopus 로고
    • note
    • The OH rebound transition state could not be located, because of convergence problems associated with the multireference character of the triplet. Nevertheless, when the O⋯C distance is shortened to 2.00 Å, subsequent full optimization yields the hydroxylation product, T-4. The transition state for desaturation on the triplet surface could not be located either. However, the optimization of the θ = 150° conformation yields the desaturation product, T-6. These results suggest that the triplet state promotes either hydroxylation or desaturation depending on the orientation of the OH group, as found for the quintet.
  • 106
    • 0038626673 scopus 로고    scopus 로고
    • revision D.01; Gaussian, Inc.: Wallingford, CT
    • Frisch, M. J.; GAUSSIAN 03, revision D.01; Gaussian, Inc.: Wallingford, CT, 2004.
    • (2004) Gaussian 03
    • Frisch, M.J.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.