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Volumn 113, Issue 24, 2009, Pages 6648-6656

One- and two-photon excitation of β-carbolines in aqueous solution: ph-dependent spectroscopy, photochemistry, and photophysics

Author keywords

[No Author keywords available]

Indexed keywords

AMBIENT OXYGEN CONCENTRATIONS; AQUEOUS SOLUTIONS; CARBOLINES; HARMANE; PH-DEPENDENT; PHOTO-INDUCED; PHOTOPHYSICAL PHENOMENA; PHOTOPHYSICS; TWO-PHOTON EXCITATIONS;

EID: 67049142898     PISSN: 10895639     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp902105x     Document Type: Article
Times cited : (60)

References (75)
  • 13
  • 55
    • 33751385980 scopus 로고    scopus 로고
    • Draxler, S.; Lippitsch, M. E. J. Phys. Chem. 1993, 97, 1149311496.
    • Draxler, S.; Lippitsch, M. E. J. Phys. Chem. 1993, 97, 1149311496.
  • 57
    • 67049140886 scopus 로고    scopus 로고
    • In the case of Ha, the steady-state Stern, Volmer plots show that, under both pH conditions, the slope (Κqτ0) is 1 order of magnitude lower than those observed for the other four βC alkaloids studied (see Supporting Information, However, taking into account the fluorescence lifetime of Ha reported in the literature (τo, 6.6 ± 0.2 ns),53 a quenching rate constant of Κq ∼ 109 M-1 s-1 was also obtained, which is quite similar to those observed for the other βCs studied in the present work
    • -1 was also obtained, which is quite similar to those observed for the other βCs studied in the present work.
  • 59
    • 67049084472 scopus 로고    scopus 로고
    • Note that the diffusion coefficient of oxygen in 25 °C water is roughly 2.5 times smaller than that in a typical hydrocarbon solvent. Thus, although one typically associates rate constants of ∼(2-3) x 1010 M-1 s-1 with Si quenching by oxygen in hydrocarbon solvents, a value of ∼6 x 109 M-1 s-1 is reasonable for water
    • -1 is reasonable for water.
  • 60
    • 0004344770 scopus 로고
    • The Benjamin/ Cummings Publishing Co, Inc, Menlo Park, CA, Chapter 6
    • Turro, N. J. Modern Molecular Photochemistry; The Benjamin/ Cummings Publishing Co., Inc.: Menlo Park, CA, 1978; Chapter 6.
    • (1978) Modern Molecular Photochemistry
    • Turro, N.J.1
  • 64
    • 67049124641 scopus 로고    scopus 로고
    • Table 1, pp 160, entry 1.226 in ref 63 indicate that the data are for Ho, not nHo. This appears to be a typographical error.
    • Table 1, pp 160, entry 1.226 in ref 63 indicate that the data are for Ho, not nHo. This appears to be a typographical error.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.