C60-exTTF-C60 dumbbells : cooperative effects stemming from two C60s on the radical ion pair stabilization

L. Sánchez, M. Sierra, N. Martin, D.M. Guldi, M.M. Wienk, R.A.J. Janssen

Research output: Contribution to journalArticleAcademicpeer-review

39 Citations (Scopus)
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Abstract

The presence of a second C60 cage in C60-exTTF-C60 triads [exTTF = 9,10-bis(1,3-dithiol-2-ylidene)-9,10-anthraquinone] has beneficial effects on the stabilization of the radical ion pair formed upon irradiation in comparison with the related C60-exTTF dyad. Although C60-exTTF-C60 ensembles show no electronic interaction between the electroactive units in the ground state, their irradiation leads to C60•--exTTF•+-C60 species with lifetimes on the order of 600 ns in benzonitrile; these lifetimes are twice those determined for the analogous C60-exTTF dyad.
Original languageEnglish
Pages (from-to)1691-1694
JournalOrganic Letters
Volume7
Issue number9
DOIs
Publication statusPublished - 2005

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