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Volumn 112, Issue 4, 2008, Pages 589-593

Proton-transfer mediated quenching of pyrene/indole charge-transfer states in isooctane solutions

Author keywords

[No Author keywords available]

Indexed keywords

CHARGE-TRANSFER STATES; FLUORESCENCE QUENCHING; ISOOCTANE SOLUTIONS; SELF-QUENCHING PROCESS;

EID: 39149107413     PISSN: 10895639     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp076294t     Document Type: Article
Times cited : (6)

References (31)
  • 2
    • 0000049531 scopus 로고    scopus 로고
    • Helsen, N.; Viaene, M.; Van der A Auweraer M.; De Schriver, F. C. J. Phys. Chem. 1994, 98, 1532.
    • (b) Helsen, N.; Viaene, M.; Van der A Auweraer M.; De Schriver, F. C. J. Phys. Chem. 1994, 98, 1532.
  • 18
    • 39149141714 scopus 로고    scopus 로고
    • 2t). Further details are given in refs 11 and 12.
    • 2t). Further details are given in refs 11 and 12.
  • 19
    • 39149108640 scopus 로고    scopus 로고
    • For the instrumental used in this study the resolution can be set as 1/λ1, 1/λ2 > 0.5 ns and 20 > a 1/a2 > 1
    • 2 > 1.
  • 24
    • 0345680266 scopus 로고
    • and reference therein
    • Horrocks, D. H. J. Chem. Phys. 1969, 50, 4151 and reference therein.
    • (1969) J. Chem. Phys , vol.50 , pp. 4151
    • Horrocks, D.H.1
  • 25
    • 39149141713 scopus 로고    scopus 로고
    • A priori, it is impossible to guarantee that the approximation k 4 ≫ l/τe, k7[Q] holds valid at all the concentrations of quencher. In any case, the τo/τ plots can be fitted directly to the expression of λ1 (eq 3, which does not involve any approximation, according to τo/τ, λ1/λ1o, τo{(X, Y, X, Y)2, 4k3k4[Q]]1/2} X, 1/τo, k3[Q] Y, 1/τe, k4, k7[Q] We fitted the experimental data en Figures 3 and 4 using the expression above, taking k7 and τe as adjustable parameters and assuming that the values of k3 (Table 1) and k 4, k7/slope, Table 2) are known. Within experimental uncertainties the retrieved values of k7 and τo are the same as those
    • o are the same as those obtained using eq 8 (Table 1), indicating that the approximation is acceptable in the ranges of [Q] studied.
  • 30
    • 39149114261 scopus 로고    scopus 로고
    • o/I plots. However, the plots according eq 13 provide an unambiguous visualization the self-quenching processes.
    • o/I plots. However, the plots according eq 13 provide an unambiguous visualization the self-quenching processes.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.