Issue 2, 2007
From the journal:

New Journal of Chemistry

Through-space communication in a TTF–C60–TTF triad†

Frédéric Oswald,a   Stéphanie Chopin,b   Pilar de la Cruz,a   Jesús Orduna,c   Javier Garín,c   Atula S. D. Sandanayaka,d   Yasuyuki Araki,d   Osamu Ito,*d   Juan Luis Delgado,a   Jack Cousseau*b  and  Fernando Langa*a  

* Corresponding authors

a Facultad de Ciencias del Medio Ambiente, Universidad de Castilla-La Mancha, Spain
E-mail: Fernando.Lpuente@uclm.es
Fax: +34 902 204 130

b Chimie, Ingénierie Moléculaire et Matériaux d’Angers, UMR CNRS 6200, Université d’Angers, 2 Bd. Lavoisier, France
E-mail: cousseau@sciences.univ-angers.fr
Fax: +33 02 41 73 53 75

c Departamento de Química Orgánica, ICMA, Universidad de Zaragoza-CSIC, Spain

d IMRAM, Tohoku University, Katahira, Aoba-ku, Sendai, Japan
E-mail: ito@tagen.tohoku.ac.jp
Fax: +81 22-217-5608

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.

Graphical abstract: Through-space communication in a TTF–C60–TTF triad

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Article information

DOI
https://doi.org/10.1039/B613466A
Article type
Paper
Submitted
18 Sep 2006
Accepted
27 Nov 2006
First published
19 Dec 2006

New J. Chem., 2007,31, 230-236

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Through-space communication in a TTF–C60–TTF triad

F. Oswald, S. Chopin, P. de la Cruz, J. Orduna, J. Garín, A. S. D. Sandanayaka, Y. Araki, O. Ito, J. L. Delgado, J. Cousseau and F. Langa, New J. Chem., 2007, 31, 230 DOI: 10.1039/B613466A

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