Electron Transfer in a Naphthalene Diimide System Studied by Single-Molecule Delayed Fluorescence

被引：1
作者：
Cox, Rosalind P. [1 ]
Sandanayake, Saman [2 ]
Langford, Steven J. [3 ]
Bell, Toby D. M. [1 ]
机构：
[1] Monash Univ, Sch Chem, Clayton, Vic 3800, Australia
[2] Addtec Pty Ltd, 264 George St, Sydney, NSW 2000, Australia
[3] Swinburne Univ, Dept Chem & Biotechnol, John St, Hawthorn, Vic 3122, Australia
来源：
AUSTRALIAN JOURNAL OF CHEMISTRY | 2020年 / 73卷 / 08期
基金：
澳大利亚研究理事会;
关键词：
TRIPHENYLAMINE-BASED DENDRIMERS; SPECTROSCOPY; CHEMISTRY; POLYMERS; ENERGY; SENSOR;
D O I：
10.1071/CH19555
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Electron transfer (ET) is a key chemical reaction in nature and has been extensively studied in bulk systems, but remains challenging to investigate at the single-molecule level. A previously reported naphthalene diimide (NDI)-based system (Higginbotham et al., Chem. Commun.2013, 49, 5061-5063) displays delayed fluorescence with good quantum yield (similar to 0.5) and long-lived (nanoseconds) prompt and delayed fluorescence lifetimes, providing an opportunity to interrogate the underlying ET processes in single molecules. Time-resolved single-molecule fluorescence measurements enabled forward and reverse ET rate constants to be calculated for 45 individual molecules embedded in poly(methylmethacrylate) (PMMA) film. Interpretation of the results within the framework of Marcus-Hush theory for ET demonstrates that variation in both the electronic coupling and the driving force for ET is occurring from molecule to molecule within the PMMA film and over time for individual molecules.
引用
收藏
页码：699 / 704
页数：6
相关论文
共 43 条
  • [1] Towards direct monitoring of discrete events in a catalytic cycle at the single molecule level
    Ameloot, Rob
    Roeffaers, Maarten
    Baruah, Mukulesh
    De Cremer, Gert
    Sels, Bert
    De Vos, Dirk
    Hofkens, Johan
    [J]. PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES, 2009, 8 (04) : 453 - 456
  • [2] Electron transfer at the single-molecule level in a triphenylamine-perylene imide molecule
    Bell, TDM
    Stefan, A
    Masuo, S
    Vosch, T
    Lor, M
    Cotlet, M
    Hofkens, J
    Bernhardt, S
    Müllen, K
    van der Auweraer, M
    Verhoeven, JW
    De Schryver, FC
    [J]. CHEMPHYSCHEM, 2005, 6 (05) : 942 - 948
  • [3] Non-conjugated, phenyl assisted coupling in through bond electron transfer in a perylenemonoimide-triphenylamine system
    Bell, Toby D. M.
    Stefan, Alina
    Lemaur, Vincent
    Bernhardt, Stefan
    Muellen, Klaus
    Cornil, Jerome
    Beljonne, David
    Hofkens, Johan
    Van der Auweraer, Mark
    De Schryver, Frans C.
    [J]. PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES, 2007, 6 (04) : 406 - 415
  • [4] Synthesis and Photophysics of Core-Substituted Naphthalene Diimides: Fluorophores for Single Molecule Applications
    Bell, Toby D. M.
    Yap, Sheryll
    Jani, Chintan H.
    Bhosale, Sheshanath V.
    Hofkens, Johan
    De Schryver, Frans C.
    Langford, Steven J.
    Ghiggino, Kenneth P.
    [J]. CHEMISTRY-AN ASIAN JOURNAL, 2009, 4 (10) : 1542 - 1550
  • [5] Brabec CJ, 2001, ADV FUNCT MATER, V11, P15, DOI 10.1002/1616-3028(200102)11:1<15::AID-ADFM15>3.0.CO
  • [6] 2-A
  • [7] Probing the influence O2 on photoinduced reversible electron transfer in perylenediimide-triphenylamine-based dendrimers by single-molecule spectroscopy
    Cotlet, M
    Masuo, S
    Lor, M
    Fron, E
    Van der Auweraer, M
    Müllen, K
    Hofkens, J
    De Schryver, F
    [J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (45) : 6116 - 6120
  • [8] Probing conformational dynamics in single donor-acceptor synthetic molecules by means of photoinduced reversible electron transfer
    Cotlet, M
    Masuo, S
    Luo, GB
    Hofkens, J
    Van der Auweraer, M
    Verhoeven, J
    Müllen, K
    Xie, XLS
    De Schryver, F
    [J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2004, 101 (40) : 14343 - 14348
  • [9] A new fluorescent H+ sensor based on core-substituted naphthalene diimide
    Cox, Rosalind P.
    Higginbotham, Heather F.
    Graystone, Brenton A.
    Sandanayake, Saman
    Langford, Steven J.
    Bell, Toby D. M.
    [J]. CHEMICAL PHYSICS LETTERS, 2012, 521 : 59 - 63
  • [10] Energy and electron transfer in ethynylene bridged perylene diimide multichromophores
    Flors, Cristina
    Oesterling, Ingo
    Schnitzler, Tobias
    Fron, Eduard
    Schweitzer, Gerd
    Sliwa, Michel
    Herrmann, Andreas
    van der Auweraer, Mark
    de Schryver, Frans C.
    Muellen, Klaus
    Hofkens, Johan
    [J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (12) : 4861 - 4870
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