New pyrrolopyridazine derivatives as blue organic luminophors

K. M.K. Swamy, Sun Park Min, Jung Han Su, Kyung Kim Sook, Hee Kim Ju, Chongmok Lee, Hyunjin Bang, Youngmee Kim, Sung Jin Kim, Juyoung Yoon

Research output: Contribution to journalArticlepeer-review

39 Scopus citations

Abstract

New pyrrolopyridazine derivatives were synthesized as potential blue organic luminophors. Three different classes of pyrrolopyridazine derivatives were made, for example, aryl groups directly connected to the core PPY (pyrrolo[1,2-b]pyridazine-5,6,7-tricarboxylic acid trimethyl ester) moiety, aryl groups connected to the PPY via a vinylene linker and aryl groups connected to the PPY via an acetylene linker. Their optical and electrochemical properties were productively compared. One of the derivatives 2 showed a relative quantum yield as high as 0.9. Compound 8 in the vinyl bridged pyrrolopyridazine series has been characterized by its X-ray crystal structure analysis.

Original languageEnglish
Pages (from-to)10227-10234
Number of pages8
JournalTetrahedron
Volume61
Issue number43
DOIs
StatePublished - 24 Oct 2005

Keywords

  • Blue luminophor
  • Blue shift
  • Fluorescence
  • Luminophor
  • Pyrrolopyridazine
  • Red shift
  • Sonogashira coupling

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