Synthesis, redox properties, and electronic spectra of sterically crowded triarylphosphines conjugated with electron acceptors

Shigeru Sasaki, Kohji Sasaki, Mariko Watanabe, Kazunobu Ogawa, Noboru Morita, Masaaki Yoshifuji

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Synthesis, redox properties, and electronic spectra of the sterically crowded triarylphosphines conjugated with π-electron systems, especially electron acceptors such as carbonyl group, are briefly reviewed. The sterically crowded triarylphosphines conjugated with various π-electron systems were synthesized from the common synthetic intermediate, (bromoaryl)phosphine, by conventional manner. The sterically crowded triarylphosphines conjugated with the electron acceptors exhibit visible absorption and fluorescence with large Stokes shift. Large solvent effect, redshift in polar solvent, and good correlation with the difference of the oxidation potential of the phosphine moiety and the reduction potential of the acceptor moiety suggest polar excited state resulting from HOMO-LUMO transition.

Original languageEnglish
Pages (from-to)256-261
Number of pages6
JournalPhosphorus, Sulfur and Silicon and the Related Elements
Volume188
Issue number1-3
DOIs
Publication statusPublished - 2013 Jan 1

Keywords

  • Triarylphosphine
  • electronic spectrum
  • redox potential
  • π-electron systems

ASJC Scopus subject areas

  • Biochemistry
  • Organic Chemistry
  • Inorganic Chemistry

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