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Volumn 102, Issue 40, 1998, Pages 7740-7753

Femtosecond ultraviolet-visible fluorescence study of the excited-state proton-transfer reaction of 7-azaindole dimer

Author keywords

[No Author keywords available]

Indexed keywords


EID: 0042689290     PISSN: 10895639     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp982522v     Document Type: Article
Times cited : (181)

References (50)
  • 29
    • 85034286495 scopus 로고    scopus 로고
    • note
    • The observed deuterium effect on the proton-transfer time (1.6 ps/ 1.1 ps = 1.5) is smaller than is expected for reactions by quantum mechanical tunneling. It suggests that tunneling is not the major mechanism for the proton transfer of the 7-azaindole dimer in solution at room temperature.
  • 31
    • 85034275234 scopus 로고    scopus 로고
    • note
    • This radiative lifetime of the monomer is obtained by integration of the lowest-energy band of the monomeric absorption spectrum from 235 to 315 nm.
  • 32
    • 85034299099 scopus 로고    scopus 로고
    • note
    • In this literature, the quantum yield of the tautomeric fluorescence is written as 0.002. However, judging from their argument using the value, 0.002 is probably a misprint and the "real" value must be 0.02.
  • 35
    • 85034291651 scopus 로고    scopus 로고
    • note
    • This radiative lifetime of 140 ns may be a shorter limit because the lowest-energy absorption band of 7-methyl-7H-pyrrolo[2,3-e]pyridine significantly overlaps with strong higher-energy absorption bands.
  • 37
    • 85034303574 scopus 로고    scopus 로고
    • note
    • Uncertainty in the evaluated oscillator strength values is estimated as around 30%. It comes predominantly from uncertainties in the quantum yield of the tautomer fluorescence and those in the fitting analysis of the fluorescence spectra using the Lorentzian functions.
  • 38
    • 85034285938 scopus 로고    scopus 로고
    • note
    • r4 = 7.5 ns is obtained. The fluorescence quantum yield of the monomeric excited state corresponding to this radiative lifetime is φ4 = 1.02/7.5 = 0.136.
  • 42
    • 85034281352 scopus 로고    scopus 로고
    • To be submitted
    • Quantitative analysis of the fluorescence anisotropy change of the 7-azaindole dimer will be given elsewhere. Takeuchi, S.; Tahara, T. To be submitted.
    • Takeuchi, S.1    Tahara, T.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.