51. Through-space communication in a TTF–C60–TTF triad
- Author
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Cruz, Pilar de la, Orduna, Jesús, Garín, Javier, Ito, Osamu, Delgado, Juan Luis, Cousseau, Jack, Langa, Fernando, Cruz, Pilar de la, Orduna, Jesús, Garín, Javier, Ito, Osamu, Delgado, Juan Luis, Cousseau, Jack, and Langa, Fernando
- Abstract
A 2-pyrazolino[60]fullerene-based triad, possessing two TTF units connected with flexible long linkages, has been prepared. Fluorescence quenching was observed in polar and non-polar solvents, suggesting the existence of a through-space photoinduced charge separation process with rates faster than 3.8 × 109 s–1 and with high efficiency (>0.85). The charge separated states were confirmed by transient absorption spectra in the visible and near-IR regions. The longest lifetime of the charge separated state was found to be 230 ns in CH2Cl2 solvent.
- Published
- 2007