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Synthesis and photophysical properties of ruthenocene-[60]fullerene dyads

AutorOviedo, Juan José; El-Khouly, Mohamed E.; Cruz, Pilar de la; Pérez, Laura; Garín, Javier; Orduna, Jesús; Araki, Yasuyuki; Langa, Fernando; Ito, Osamu
Fecha de publicaciónnov-2005
EditorRoyal Society of Chemistry (Great Britain)
CitaciónNew Journal of Chemistry 30(1): 93-101 (2006)
ResumenTwo novel ruthenocene-C60 dyads, with a 2-pyrazoline ring or a pyrrolidine ring as a linker, have been synthesized with the aim of providing a simple model of natural photosynthesis. The photophysical properties of the two ruthenocene-C60 dyads have been investigated by steady-state absorption and fluorescence, time-resolved fluorescence and nanosecond transient measurements in polar and non-polar solvents. The charge separation takes place in the ruthenocene-pyrazolino[60]fullerene more efficiently than in the ruthenocene-pyrrolidino[60]fullerene dyad. The lifetimes of the charge-separated states of the ruthenocene-pyrazolino[60]fullerene and the ruthenocene-pyrrolidino[60]fullerene dyads are 100 ns in PhCN. It was found that the ruthenocene-[60]fullerenes have an ability to prolong the charge-separated states compared with those for ferrocene-[60]fullerenes.
Descripción9 pages, 11 figures, 4 tables, 1 scheme, 1 chart.
Versión del editorhttp://dx.doi.org/10.1039/b509221c
URIhttp://hdl.handle.net/10261/19809
DOI10.1039/b509221c
ISSN1144-0546
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