메뉴 건너뛰기




Volumn 112, Issue 15, 2008, Pages 3376-3385

Photoinduced energy and electron-transfer processes in porphyrin-perylene bisimide symmetric triads

Author keywords

[No Author keywords available]

Indexed keywords

ELECTRON TRANSFER PROCESS (ETP); PERYLENE BISIMIDE; PHOTOINDUCED ENERGY; PHOTOPHYSICS;

EID: 47049085948     PISSN: 10895639     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp7109516     Document Type: Article
Times cited : (36)

References (88)
  • 4
    • 0000447964 scopus 로고    scopus 로고
    • Balzani, V, Ed, Wiley-VCH: Weinheim, Germany, Chapter 2, pp
    • (d) Gust, D.; Moore, T. A.; Moore, A. L. In Electron Transfer in Chemistry; Balzani, V., Ed.; Wiley-VCH: Weinheim, Germany, 2001; Vol. III, Part 2, Chapter 2, pp 273-336.
    • (2001) Electron Transfer in Chemistry , vol.3 , Issue.PART 2 , pp. 273-336
    • Gust, D.1    Moore, T.A.2    Moore, A.L.3
  • 27
  • 44
    • 0037019524 scopus 로고    scopus 로고
    • Schenning, A. P. H. J; v. Herrikhuyzen, J.; Jonkheijm, P.; Chen, Z.; Würthner, F.; Meijer, E. W. J. Am. Chem. Soc. 2002, 124, 10252-10253.
    • (d) Schenning, A. P. H. J; v. Herrikhuyzen, J.; Jonkheijm, P.; Chen, Z.; Würthner, F.; Meijer, E. W. J. Am. Chem. Soc. 2002, 124, 10252-10253.
  • 47
    • 20844451184 scopus 로고    scopus 로고
    • Sautter, A.; Kaletas, B. K.; D. G.; Schmid, D. G.; Dobrawa, R.; Zimine, M.; Jung, G.; van Stokkum, I. H. M.; De Cola, L.; Williams, R. M.; Würthner, F. J. Am. Chem. Soc. 2005, 127, 6719-6729.
    • (g) Sautter, A.; Kaletas, B. K.; D. G.; Schmid, D. G.; Dobrawa, R.; Zimine, M.; Jung, G.; van Stokkum, I. H. M.; De Cola, L.; Williams, R. M.; Würthner, F. J. Am. Chem. Soc. 2005, 127, 6719-6729.
  • 63
    • 47049110012 scopus 로고    scopus 로고
    • Prathapan, S, Yang, S. I, Seth, J, Miller, M. A, Bocian, D. F
    • (b) Prathapan, S.; Yang, S. I.; Seth, J.; Miller, M. A.; Bocian, D. F.
  • 73
    • 47049089488 scopus 로고    scopus 로고
    • In principle, the supramolecular nature of the triads can also be checked by electrochemistry. In practice, the cyclic voltammetry of the triads (dichloromethane, glassy carbon working electrode) is a reasonable superposition of those of the model molecules, but substantial peak broadening and poor reversibility (likely caused by electrode absorption) prevents a precise comparison of potential values.
    • In principle, the supramolecular nature of the triads can also be checked by electrochemistry. In practice, the cyclic voltammetry of the triads (dichloromethane, glassy carbon working electrode) is a reasonable superposition of those of the model molecules, but substantial peak broadening and poor reversibility (likely caused by electrode absorption) prevents a precise comparison of potential values.
  • 74
    • 47049129311 scopus 로고    scopus 로고
    • 25
    • 25
  • 77
    • 84918669584 scopus 로고    scopus 로고
    • 2, at an estimated center-to-center distance of 14.8 Å, amounts to 0.11 eV.
    • 2, at an estimated center-to-center distance of 14.8 Å, amounts to 0.11 eV.
  • 78
    • 0010104094 scopus 로고    scopus 로고
    • 2 = 4, RDA = 14.8 Å). Calculations performed using PhotochemCAD (Du, H.; Fuh, R. A.; Li, J.; Corkan, A; Lindsey, J. S. Photochem. Photobiol. 1998, 68, 141-142).
    • 2 = 4, RDA = 14.8 Å). Calculations performed using PhotochemCAD (Du, H.; Fuh, R. A.; Li, J.; Corkan, A; Lindsey, J. S. Photochem. Photobiol. 1998, 68, 141-142).
  • 81
    • 47049112564 scopus 로고    scopus 로고
    • Femtosecond results obtained with excitation at 550 nm (ca. 60% excitation of the Zn porphyrin chromophore) were practically the same except for small differences in the spectral changes taking place in the first few picoseconds as those reported below for excitation at 590 nm (selective perylene bisimide excitation). The time constant for the conversion of the upper Zn porphyrin chromophores to the lower perylene bisimide by singlet energy transfer, 3.4 ps, can be obtained upon 550 nm excitation by monitoring the decay of the *ZnP(S1) absorption at 440 nm (Figure S2 of supporting material).
    • Femtosecond results obtained with excitation at 550 nm (ca. 60% excitation of the Zn porphyrin chromophore) were practically the same except for small differences in the spectral changes taking place in the first few picoseconds as those reported below for excitation at 590 nm (selective perylene bisimide excitation). The time constant for the conversion of the upper Zn porphyrin chromophores to the lower perylene bisimide by singlet energy transfer, 3.4 ps, can be obtained upon 550 nm excitation by monitoring the decay of the *ZnP(S1) absorption at 440 nm (Figure S2 of supporting material).
  • 82
    • 0010104094 scopus 로고    scopus 로고
    • With appropriate parameters, n, 1.424; ΦD/T D, 1.4 × 108 s-1; K2, 4, RDA, 15.8 Å, the calculated time constant is ca. 2 ps. Calculations performed using PhotochemCAD Du, H, Fuh, R. A, Li, J, Corkan, A; Lindsey, J. S. Photochem. Photobiol. 1998, 68, 141-142
    • 2 = 4, RDA = 15.8 Å), the calculated time constant is ca. 2 ps. Calculations performed using PhotochemCAD (Du, H.; Fuh, R. A.; Li, J.; Corkan, A; Lindsey, J. S. Photochem. Photobiol. 1998, 68, 141-142).
  • 83
    • 47049107248 scopus 로고    scopus 로고
    • A precise quantitative evaluation of the amount of quenching is prevented by the presence of traces of free, unquenched porphyrin as detected by single-photon-counting techniques
    • A precise quantitative evaluation of the amount of quenching is prevented by the presence of traces of free, unquenched porphyrin as detected by single-photon-counting techniques.
  • 88


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.