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Volumn 107, Issue 41, 2003, Pages 8404-8419

Variable-range hopping electron transfer through disordered bridge states: Application to DNA

Author keywords

[No Author keywords available]

Indexed keywords

DONOR-BRIDGE-ACCEPTOR SYSTEM; HOLE TRANSFER; ULTRAFAST TIME-RESOLVED SPECTROSCOPY; VARIABLE-RANGE HOPPING ELECTRON TRANSFER;

EID: 0242270709     PISSN: 10895639     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp026789c     Document Type: Article
Times cited : (126)

References (72)
  • 46
    • 0242283004 scopus 로고    scopus 로고
    • note
    • A fragment of 22 sites was considered with G at site one, GGG at site N + 2, and A at the remaining sites.
  • 49
    • 0242377721 scopus 로고    scopus 로고
    • note
    • The range for the couplings obtained in ref 45 is due to slightly different equilibrium geometries for different systems with available crystallographic data.
  • 52
    • 0242314764 scopus 로고    scopus 로고
    • note
    • AG = 0.14 eV, is smaller than the values of 0.2, 0.47, and 0.46 eV resulting grom gas-phase measurements, measurements in solution, and semiempirical calculations that were discussed in detail in Appendix F. One should note, however, that the energetic difference between G and the partially delocalized bridge states of A's is larger than this value because of the different solvation energies of the localized state at G and the partially delocalized bridge states.
  • 53
    • 0242377720 scopus 로고    scopus 로고
    • note
    • The present energetic gap between G and GGG to 0.2 eV may be compared with a wide variety of other values, such as the 0.68 eV estimated from earlier ab initio calculations (Sugiyama, H.; Saito, I. J. Am. Chem. Soc. 1996, 118, 7063) and of 0.13 eV estimated in recent semiempirical calculations. Recent time-dependent experiments (Lewis F. D.; Liu, X.; Liu, J.; Hayes, R. T.; Wasielewski, M. R. J. Am. Chem. Soc. 2000, 122, 12037) gave a value of 0.08 eV for this energy gap.
  • 55
    • 0242377719 scopus 로고    scopus 로고
    • note
    • During the revision of this manuscript, a paper by Petrov et al. (Petrov, E. G.; Schevchenko, Ye. V.; May, V. Chem. Phys. 2003, 288, 269) was published with an identical phenomenological hopping constant as our eq 3. We would like to emphasize that our result was obtained independently and was presented in May 2002 at a meeting of the Electrochemical Society in Philadelphia, PA (U.S.A.), in May 2002 in a talk at Free University Berlin (Germany), and in November 2002 in talks at University of Nagoya, Kyoto University, and Tsukuba University (Japan).
  • 61
    • 0242377717 scopus 로고    scopus 로고
    • note
    • G,GGG increases, and therefore, the overall, yield decreases for short bridge length.
  • 62
    • 0242283005 scopus 로고    scopus 로고
    • Private communication
    • Jortner, J. Private communication.
    • Jortner, J.1
  • 66
    • 0035913970 scopus 로고    scopus 로고
    • note
    • One possible source for different local hole energies of identical base pairs concerns the possible modulation of energies by counterions (Barnett, R. B.; Cleveland, C. L.; Joy, A.; Landman, U.; Schuster, G. B. Science 2001, 294, 567) of the solution, which are attracted by the negatively charged sugar-phosphate backbone of DNA.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.