Synthesis of efficient blue and red light emitting phenanthroline derivatives containing both hole and electron transporting properties

Yuan Ji Bing, Louis M L LEUNG, Gong Menglian

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

Two phenanthroline derivatives containing a hole transporting triphenylamine and an electron transporting 1,3,4-oxadiazole unit have been prepared with high yield. UVâ€"vis absorption and fluorescence measurement indicated they are high efficient light-emitting materials. The compounds are 6-(5-(4-N,Nâ€-diphenylaminophenyl)-1,3,4-oxadiazol-2- yl) quinoxalino[2,3-f] phenanthroline (9, κ max=635nm, 40% quantum yield), and 1-ethyl-2-(4-(5-(4-N,Nâ€-diphenylaminophenyl)-1, 3,4-oxadiazol-2-yl)phenyl)imidazo[4,5-f]phenanthroline (14, Iκ max=461nm, 78% quantum yield). Preliminary study on electroluminescence for the two fluorescent dyes prepared from vacuum evaporation resulted in blue and red light emitting organic light emitting diodes (OLED).

Original languageEnglish
Pages (from-to)6361-6363
Number of pages3
JournalTetrahedron Letters
Volume45
Issue number33
DOIs
Publication statusPublished - 9 Aug 2004

Scopus Subject Areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

User-Defined Keywords

  • Fluorescence dyes
  • Hole and electron transporting
  • Phenanthroline derivatives

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