Photoinduced processes of newly synthesized bisferrocene- and bisfullerene-substituted tetrads with a triphenylamine central block

Jai Han Seok, Seung Ho Park, Mohamed E. El-Khouly, Yasuyuki Araki, Osamu Ito, Kwang Yol Kay

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Photoinduced electron transfer processes of two newly synthesized tetrads with a triphenylamine (TPA) as central building block, to which bisfullerenes (C60) and bisferrocenes (Fc) are covalently connected, have been studied. One of them has a TPA linked with one C60 moiety and two ferrocene moieties C60-TPA-(Fc)2 and another tetrad has a TPA linked with two C60 moieties and one ferrocene unit (C60)2-TPA-Fc. The photophysical properties of (C60)m-TPA-(Fc)n have been investigated by applying the picosecond time-resolved fluorescence and nanosecond transient absorption techniques in both polar and nonpolar solvents. The charge separation process via the excited singlet state of the C60 moiety of the C60-TPA-(Fc)2 is more efficient than that of the (C60)2-TPA-Fc. It is found that the ratio of Fc-donor to C60-acceptor affects charge separation efficiency via the excited singlet state of the C60 moiety.

Original languageEnglish
Pages (from-to)1818-1825
Number of pages8
JournalJournal of Organometallic Chemistry
Volume694
Issue number12
DOIs
Publication statusPublished - 2009 May 15

Keywords

  • Electron transfer
  • Ferrocene
  • Fullerene

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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