Synthesis and photophysical properties of a [60]fullerene compound with dimethylaniline and ferrocene connected through a pyrazolino group: A study by laser flash photolysis

Juan L. Delgado, Mohamed E. El-Khouly, Yasuyuki Araki, María J. Gómez-Escalonilla, Pilar De La Cruz, Frédéric Oswald, Osamu Ito, Fernando Langa

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

Pyrazolino[60]fullerene covalently-linked to ferrocene and N,N-dimethylaniline groups has been prepared and studied using time-resolved spectroscopic methods. The fluorescence quenching of the C60 moiety indicates that charge-separation takes place via the singlet excited state of the C60 moiety in both polar and non-polar solvents. The charge-separated state, in which an electron is localized on the C60 sphere and a hole is located on the whole donor moieties of ferrocene, pyrazole, and N,N-dimethylaniline groups, has been confirmed by nanosecond transient spectra in the visible and near-IR spectral region. The lifetimes of the radical ion-pairs are as long as 30-50 ns in both polar and non-polar solvents.

Original languageEnglish
Pages (from-to)4104-4111
Number of pages8
JournalPhysical Chemistry Chemical Physics
Volume8
Issue number35
DOIs
Publication statusPublished - 2006 Dec 1
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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