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Volumn 102, Issue 24, 1998, Pages 4559-4567

Early events in decatungstate photocatalyzed oxidations: A nanosecond laser transient absorbance reinvestigation

Author keywords

[No Author keywords available]

Indexed keywords


EID: 0000095344     PISSN: 10895639     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp980723t     Document Type: Article
Times cited : (77)

References (54)
  • 5
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    • The following special issue of Chem. Rev. is devoted to polyoxometalates: Guest Editor, C. L. Hill Chem. Rev. 1998, 98, 1.
    • (1998) Chem. Rev. , vol.98 , pp. 1
    • Hill, C.L.1
  • 27
    • 85034288149 scopus 로고    scopus 로고
    • note
    • 1,33
  • 31
    • 85034282164 scopus 로고    scopus 로고
    • note
    • In ref 28, the authors did not observe the intermediate 2 at 380 nm.
  • 32
    • 85034274807 scopus 로고    scopus 로고
    • note
    • 22 However, our results and those in refs 23, 28, and 29 contradict these claims.
  • 34
    • 85034287478 scopus 로고    scopus 로고
    • note
    • 41 to 3.
  • 36
    • 85034309104 scopus 로고    scopus 로고
    • note
    • 23
  • 37
    • 85034302052 scopus 로고    scopus 로고
    • note
    • 28 their lack of confirmation of the τ < 30 ps transient 2 at 380 nm is puzzling. Nevertheless, a fast component derived from 2 clearly exists as is demonstrated in the transient behavior during the 7 ns pulse between 300 and 380 nm (see ref 38 and Supporting Information). Furthermore, they report no rising absorbance at 390 nm with added 0.025 M adamantane which was observed in ref 23 with either 0.5 M cyclohexene or 2 M 2-butanol. This is not surprising since more substrate would be needed to approach the quenching rates and product yields apparent in ref 23.
  • 38
    • 85034279914 scopus 로고    scopus 로고
    • note
    • -1. In the calculation of [4 + H4], the cell path length is approximated by the laser beam diameter, ∼0.7 cm.
  • 39
    • 85034286649 scopus 로고    scopus 로고
    • note
    • 14
  • 41
    • 85034301167 scopus 로고    scopus 로고
    • note
    • π)which tail into the excitation wavelength, 355 nm. Consequently, their concentrations were limited to the 1-5 mM range, where control experiments indicated no excitation of these substrates. Indeed, this interference reduced the number of aromatic amine and thioether substrates available for study.
  • 43
    • 85034302628 scopus 로고    scopus 로고
    • note
    • 48 consistent with inhomogeneous samples, and cannot be assigned with confidence.
  • 48
    • 85034296784 scopus 로고    scopus 로고
    • note
    • 3, is unknown (vide infra).
  • 49
    • 85034301947 scopus 로고    scopus 로고
    • note
    • -} further reduces the rate of electron transfer.
  • 50
    • 85034306779 scopus 로고    scopus 로고
    • note
    • Determined from 0.0005/0.07, where 0.07 is the initial absorbance change.
  • 52
    • 0004032955 scopus 로고
    • Kochi, J. K., Ed.; John Wiley & Sons: New York
    • Ingold, K. U. In Free Radicals; Kochi, J. K., Ed.; John Wiley & Sons: New York, 1973; Vol. 1.
    • (1973) Free Radicals , vol.1
    • Ingold, K.U.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.