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Volumn 121, Issue 14, 1999, Pages 3446-3452

Solvent-dependent intramolecular electron transfer in a peptide-linked [Ru(bpy)3]2+-C60 dyad

Author keywords

[No Author keywords available]

Indexed keywords

CHLORINATED HYDROCARBON; PEPTIDE; RUBIDIUM; SOLVENT;

EID: 0033553165     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja983421d     Document Type: Article
Times cited : (108)

References (59)
  • 20
    • 0026852957 scopus 로고
    • (c) Wang, Y. Nature 1992, 356, 585.
    • (1992) Nature , vol.356 , pp. 585
    • Wang, Y.1
  • 22
    • 0031161872 scopus 로고    scopus 로고
    • and references therein
    • (a) Imahori, H.; Sakata, Y. Adv. Mater. 1997, 9, 537 and references therein.
    • (1997) Adv. Mater. , vol.9 , pp. 537
    • Imahori, H.1    Sakata, Y.2
  • 44
    • 2442747051 scopus 로고    scopus 로고
    • note
    • 2+-hexapeptide 4 was used for the interpretation of the spectral features in the UV-vis range (Figure 2) found for the charge-separated state of dyad 1. The strong band of the fullerene radical anion (near 420 nm) masks the ruthenium-related bleaching (near 440 nm). In turn, bleaching of ground-state fullerene (near 335 nm) is compensated for by the sharp absorption of the ruthenium(III) complex in this same wavelength range (ref 21).
  • 47
    • 2442724825 scopus 로고    scopus 로고
    • note
    • 60 chromophores. It is a general belief, however, that, in solution, families of conformers simultaneously exist in equilibrium. Therefore, the presence of a heterogeneous mixture of conformers in CBT/ protic cosolvent cannot be ruled out.
  • 50
    • 2442733567 scopus 로고    scopus 로고
    • note
    • An increase of the solvent polarity, e.g., from CBT to CBT/HFIP, enhances the thermodynamic driving force (AG) for an intramolecular electron transfer by lowering the energy of the respective charge-separated radical pair. Thus, upon addition of a protic cosolvent to CBT, a stronger luminescence quenching would have been expected also in the case of dyad 1, reflecting the faster ET dynamics. The measured luminescence quantum yields in CBT/EtOH, CBT/TFE, and CBT/HFIP are, however, in sharp contrast to this trend, assuming no Marcus inverted behavior.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.