Photoinduced Electron Transfer between 1,2,5-Triphenylpyrrolidinofullerene Cluster Aggregates and Electron Donors

作者: V. Biju , S. Barazzouk , K. George Thomas , M. V. George , Prashant V. Kamat

DOI: 10.1021/LA001644N

关键词:

摘要: Fullerene derivative 1,2,5-triphenylpyrrolidinofullerene (TPPF) forms optically transparent clusters (mean diameter of ∼180 nm) in toluene/acetonitrile mixtures. The bimolecular rate constants for the quenching a singlet excited state TPPF by various electron donors (substituted anilines and heteroaromatics) were found to be significantly higher than that corresponding monomeric analogue. local concentration fullerene molecules is much these because microheterogeneous environment facilitates trapping donor molecules. Formation long-lived electron-transfer products, following photoexcitation cluster donors, was confirmed through flash photolysis studies. cluster−donor assemblies when deposited as thin film on nanostructured SnO2 semiconductor film, act photosensitive electrode material. Light energy can harvested using an intermolecular transfer between ...

参考文章(41)
James W. Arbogast, Christopher S. Foote, Michelle Kao, Electron transfer to triplet fullerene C60 Journal of the American Chemical Society. ,vol. 114, pp. 2277- 2279 ,(1992) , 10.1021/JA00032A063
Christopher S. Foote, Photophysical and photochemical properties of fullerenes Topics in Current Chemistry. ,vol. 169, pp. 347- 363 ,(1994) , 10.1007/3-540-57565-0_80
Yoshikiyo Moroi, Andre M. Braun, Michael Graetzel, Light-initiated electron transfer in functional surfactant assemblies. 1. Micelles with transition metal counterions Journal of the American Chemical Society. ,vol. 101, pp. 567- 572 ,(1979) , 10.1021/JA00497A013
Phil S. Baran, Regina R. Monaco, Ahsan U. Khan, David I. Schuster, Stephen R. Wilson, Synthesis and Cation-Mediated Electronic Interactions of Two Novel Classes of Porphyrin−Fullerene Hybrids Journal of the American Chemical Society. ,vol. 119, pp. 8363- 8364 ,(1997) , 10.1021/JA970486S
Ya-Ping Sun, Christopher E. Bunker, Formation and Properties of C70 Solidlike Species in Room-Temperature Solutions Chemistry of Materials. ,vol. 6, pp. 578- 580 ,(1994) , 10.1021/CM00041A004
K. George Thomas, V. Biju, M. V. George, Dirk M. Guldi, Prashant V. Kamat, Excited-State Interactions in Pyrrolidinofullerenes Journal of Physical Chemistry A. ,vol. 102, pp. 5341- 5348 ,(1998) , 10.1021/JP972756Z
Darius Kuciauskas, Paul A. Liddell, Ana L. Moore, Thomas A. Moore, Devens Gust, Magnetic Switching of Charge Separation Lifetimes in Artificial Photosynthetic Reaction Centers Journal of the American Chemical Society. ,vol. 120, pp. 10880- 10886 ,(1998) , 10.1021/JA981848E
Hiroshi Imahori, Kiyoshi Hagiwara, Masanori Aoki, Tsuyoshi Akiyama, Seiji Taniguchi, Tadashi Okada, Masahiro Shirakawa, Yoshiteru Sakata, Linkage and Solvent Dependence of Photoinduced Electron Transfer in Zincporphyrin-C60 Dyads Journal of the American Chemical Society. ,vol. 118, pp. 11771- 11782 ,(1996) , 10.1021/JA9628415
Chuping Luo, Mamoru Fujitsuka, Chun-Hui Huang, Osamu Ito, Photoinduced Electron Transfer fromN,N-Dimethylaniline to Pyrrolidinofullerenes (C60(C3H6N)R):  Emphasized Substituent Effects with Solvent Polarity Change The Journal of Physical Chemistry A. ,vol. 102, pp. 8716- 8721 ,(1998) , 10.1021/JP982524F
K. George Thomas, V. Biju, D. M. Guldi, Prashant V. Kamat, M. V. George, PHOTOINDUCED CHARGE SEPARATION AND STABILIZATION IN CLUSTERS OF A FULLERENE-ANILINE DYAD Journal of Physical Chemistry B. ,vol. 103, pp. 8864- 8869 ,(1999) , 10.1021/JP9915679