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Volumn 126, Issue 33, 2004, Pages 10441-10449

Mechanism of four-electron reduction of dioxygen to water by ferrocene derivatives in the presence of perchloric acid in benzonitrile, catalyzed by cofacial dicobalt porphyrins

Author keywords

[No Author keywords available]

Indexed keywords

BINDING ENERGY; COUPLED CIRCUITS; ELECTRONS; OXIDATION; PORPHYRINS; TEMPERATURE CONTROL;

EID: 4143100225     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja048403c     Document Type: Article
Times cited : (202)

References (102)
  • 19
    • 84940923414 scopus 로고    scopus 로고
    • Kadish, K. M., Smith, K. M., Guilard, R., Eds; Elsevier Science: USA
    • Collman, J. P.; Boulatov, R.; Sunderland, C. J. In The Porphyrin Handbook; Kadish, K. M., Smith, K. M., Guilard, R., Eds; Elsevier Science: USA, 2003; Vol. 11, pp 1-49.
    • (2003) The Porphyrin Handbook , vol.11 , pp. 1-49
    • Collman, J.P.1    Boulatov, R.2    Sunderland, C.J.3
  • 42
    • 4143083864 scopus 로고    scopus 로고
    • Reference 10d
    • (b) Reference 10d.
  • 76
    • 0034671272 scopus 로고    scopus 로고
    • For the electron-transfer oxidation of Co(II) porphyrins to Co(III) porphyrins, see: (a) Fukuzumi, S.; Ohkubo, K. Chem.-Eur. J. 2000, 6, 4532.
    • (2000) Chem.-Eur. J. , vol.6 , pp. 4532
    • Fukuzumi, S.1    Ohkubo, K.2
  • 82
    • 4143127817 scopus 로고    scopus 로고
    • note
    • 2(DPD) have been reported previously in different conditions. See: ref 23b and c.
  • 85
    • 33748461849 scopus 로고
    • The first oxidation of a Co(II) porphyrin in a noncoordinating solvent involves formation of a Co(II) porphyrin radical cation, whereas the first oxidation in potentially coordinating solvents invariably involves the metal-centered oxidation to produce a Co(III) porphyrin. See: (a) Salehi, A.; Oertling, W. A.; Babcock, G. T.; Chang, C. K. J. Am. Chem. Soc. 1986, 108, 5630.
    • (1986) J. Am. Chem. Soc. , vol.108 , pp. 5630
    • Salehi, A.1    Oertling, W.A.2    Babcock, G.T.3    Chang, C.K.4
  • 92
    • 4143099294 scopus 로고    scopus 로고
    • note
    • 2 between the two cobalt atoms of cofacial dicobalt porphyrins with an appropriate cobalt-cobalt separation.
  • 93
    • 4143087141 scopus 로고    scopus 로고
    • note
    • However, it should be noted that the thermodynamic stability is not necessarily related directly with the kinetic reactivity.
  • 96
    • 4143095980 scopus 로고    scopus 로고
    • note
    • The flexibility of the DPD spacer allows us to shorten the metal-metal separation, resulting in forming the μ-oxo species; ref 47.
  • 97
    • 4143112483 scopus 로고    scopus 로고
    • Although the formation of the Co(III)-Co(IV) intermediate is energetically uphill, the followup rapid electron transfer from ferrocene derivatives makes the process energetically feasible. Formation of a high-valent cobalt-oxo complex has been suggested. See: Nam, W.; Kim, I.; Kim, Y.; Kim, C. Chem. Commun. 2001, 1296.
    • (2001) Chem. Commun. , pp. 1296
    • Nam, W.1    Kim, I.2    Kim, Y.3    Kim, C.4
  • 99
    • 0002435698 scopus 로고    scopus 로고
    • K. M.; Smith, K. M., Guilard, R., Ed.; Academic Press: San Diego, CA
    • (b) Poulos, T. L. In The Porphyrin Handbook; Kadish, K. M.; Smith, K. M., Guilard, R., Ed.; Academic Press: San Diego, CA, 2000; Vol. 4, pp 189-218.
    • (2000) The Porphyrin Handbook; Kadish , vol.4 , pp. 189-218
    • Poulos, T.L.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.