1998
DOI: 10.1002/(sici)1521-3765(19981002)4:10<1992::aid-chem1992>3.0.co;2-n
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Photoinduced Electron Transfer in a Tris(2,2′-bipyridine)-C60-ruthenium(II) Dyad: Evidence of Charge Recombination to a Fullerene Excited State

Abstract: A 1,3-dipolar cycloaddition reaction of azomethine ylides to C 60 has been used to prepare a fulleropyrrolidine covalently linked to a substituted tris(2,2'bipyridine)ruthenium(ii) chromophore. Electrochemical studies revealed a single one-electron reversible oxidation of the ruthenium center and ten one-electron reversible reductions, five of them occurring at the C 60 core and five at the bipyridine (bpy) ligands. Steady-state fluorescence and time-resolved flash-photolytic investigations of dyad 6 are repor… Show more

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Cited by 105 publications
(96 citation statements)
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“…5 (that is, in the range 3-10 ns, see also footnote ¶), so it can be attributed to population of the triplet fullerene-centered state from the CS state. In fact, triplet excited states of fullerene derivatives have been reported to exhibit an absorption peak in the range 675-705 nm, 15,17 similar to that shown in Fig. 5c, and formed by process (iv) described above.…”
Section: Photochemical and Photobiological Sciences Papersupporting
confidence: 54%
See 3 more Smart Citations
“…5 (that is, in the range 3-10 ns, see also footnote ¶), so it can be attributed to population of the triplet fullerene-centered state from the CS state. In fact, triplet excited states of fullerene derivatives have been reported to exhibit an absorption peak in the range 675-705 nm, 15,17 similar to that shown in Fig. 5c, and formed by process (iv) described above.…”
Section: Photochemical and Photobiological Sciences Papersupporting
confidence: 54%
“…Indeed, donor-fullerene dyads in which the donor is a Ru(II) polypyridine unit, 11,17,18 an Ir(III) cyclometalated chromophore, 19 a dinuclear Cu(I) helicate chromophore, 20 or a mononuclear Re(I) polypyridine unit 21 have been reported. In most cases, the 3 MLCT excited state is quenched by oxidative electron transfer processes similar to that found for 1, thereby generating charge-separated states containing a reduced fullerene subunit.…”
Section: Comparison With Molecular Analoguesmentioning
confidence: 99%
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“…As donors a wide variety of chromophores including porphyrins [35][36][37][38][39][40][41][42][43][44][45], phthalocyanines [46,47], amines [48], polycondensed aromatics [49], transition complexes [50][51][52], carotenoids [53], ferrocenes [54,55], tetrathiafulvalenes (TTF) [56], and others [57] have been employed. Here the photodynamics of zinc porphyrin-C 60 linked dyad 1 is presented to understand the typical relaxation processes of the excited states in donor-fullerene linked dyads (Figure 4.1) [37].…”
Section: Donor-fullerene Dyads For Photoinduced Electron Transfermentioning
confidence: 99%