Synthesis and photophysical studies of fluorenone-armed porphyrin arrays

Ke Xin Tan, Hendrik O. Lintang, Subashani Maniam, Steven J. Langford, Mohd Bakri Bakar

Research output: Contribution to journalArticleResearchpeer-review

8 Citations (Scopus)


Dimers and trimers of a fluorenone-appended porphyrin were prepared via Lindsey optimized Sonogashira coupling reaction. The photophysical properties of the oligomers were investigated upon excitation of the fluorenone arms which act as donors. The emission profiles of the covalently linked porphyrins suggest that the diphenylacetylene bonds are vital for efficient intramolecular energy transfer between the porphyrin units. Additionally, higher fluorescence quantum yields were recorded for the oligomers than for the individual units.
Original languageEnglish
Pages (from-to)5402-5413
Number of pages12
Issue number35
Publication statusPublished - 1 Sept 2016


  • Energy transfer
  • Fluorenone
  • Porphyrin
  • Sonogashira coupling

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