Electron Transfer in a Supramolecular Associate of a Fullerene Fragment |
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| Authors: | María Gallego Joaquín Calbo Dr Juan Aragó Rafael M Krick Calderon Fernando H Liquido Takahiro Iwamoto Allison K Greene Edward A Jackson Dr Emilio M Pérez Prof Dr Enrique Ortí Prof Dr Dirk M Guldi Prof Dr Lawrence T Scott Prof Dr Nazario Martín |
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| Institution: | 1. Departamento de Química Orgánica, Fac. C.C. Químicas, Universidad Complutense de Madrid, Av. Complutense s/n, 28040 Madrid (Spain) http://www.ucm.es/info/fullerene/;2. Instituto de Ciencia Molecular, Universidad de Valencia, 46980 Paterna (Spain);3. Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Friedrich‐Alexander‐Universit?t Erlangen‐Nürnberg, Egerlandstra?e 3, 91058 Erlangen (Germany);4. Merkert Chemistry Center, Boston College, Chestnut Hill, MA‐02467‐3860 (USA);5. IMDEA‐nanociencia, C/Faraday 9, Ciudad Universitaria de Cantoblanco, 28049 Madrid (Spain) |
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| Abstract: | Herein, we investigate the association of a fullerene fragment, hemifullerene C30H12, with an electron‐donating bowl‐shaped tetrathiafulvalene derivative (truxTTF). UV/Vis titrations and DFT calculations support formation of the supramolecular complex, for which an association constant of log Ka=3.6±0.3 in CHCl3 at room temperature is calculated. Remarkably, electron transfer from truxTTF to C30H12 to form the fully charge‐separated species takes place upon irradiation of the associate with light, constituting the first example in which a fullerene fragment mimics the electron‐accepting behavior of fullerenes within a supramolecular complex. |
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| Keywords: | density functional calculations donor‐acceptor systems fullerenes photoinduced electron transfer supramolecular chemistry |
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