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

40 Scopus citations


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
Issue number43
StatePublished - 24 Oct 2005

Bibliographical note

Funding Information:
This work was supported by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD) (KRF-R14-2003-014-01001-0) and by the SRC program of the Korea Science and Engineering Foundation (KOSEF) through the Center for Intelligent Nano-Bio Materials at Ewha Womans University (R11-2005-008-02001-0) K.M.K.S. is thankful to KOFST for Brain Pool Fellowship.


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


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