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Volumn 109, Issue 28, 2005, Pages 13553-13560

Energy transfer in unsymmetrical phenylene ethynylene dendrimers

Author keywords

[No Author keywords available]

Indexed keywords

ENERGY TRAP; ENERGY-TRANSFER RATES; LIGHT HARVESTING; PHENYLENE ETHYLENE DENDRIMERS;

EID: 23144447237     PISSN: 15206106     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp051488z     Document Type: Article
Times cited : (50)

References (37)
  • 25
    • 23144454218 scopus 로고    scopus 로고
    • Roitberg, A. E, Krause, J. L. The system was built in Hyperchem 7.0 and run for 100 ns (T = 300 K) using the program Tinker
    • Roitberg, A. E, Krause, J. L. The system was built in Hyperchem 7.0 and run for 100 ns (T = 300 K) using the program Tinker.
  • 26
    • 0003684555 scopus 로고    scopus 로고
    • Washington University: St. Louis, MO
    • (Ponder, J. TINKER, Software Tools for Molecular Design, version 3.9; Washington University: St. Louis, MO, 2003. The most updated version for the TINKER program can be obtained from J. W. Ponder's website at http://dasher.wustl.edu/tinker.) The MM3 force field was used, with the rotational barrier around the ethynylene triple bond raised to 0.6 kcal/mol to reflect experimental observables. The simulations were performed in a vacuum and should be interpreted only as guides to overall conformational shapes.
    • (2003) TINKER, Software Tools for Molecular Design, Version 3.9
    • Ponder, J.1
  • 29
    • 23144437484 scopus 로고    scopus 로고
    • note
    • After many hours of UV excitation, we detect some changes in the emission spectrum due to photobleaching. We were careful to change samples before any degradation occurs.
  • 33
    • 23144453439 scopus 로고    scopus 로고
    • note
    • The purity of the sample was checked by thin layer chromatography (TLC). In addition, we performed an experiment by titrating the 2G2-m-Per with 2G2-m-OH, comparing absorption and emission spectra as a function of added 2G2-m-OH. We conclude that the spectroscopy experiments are more sensitive than TLC and can detect 1-2% impurity. A concentration of 1% 2G2-m-OH yields at least 99% of the integrated fluorescence of the band peaked at 435 nm seen in Figure 3.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.