Synthesis, excitation energy transfer and singlet oxygen photogeneration of covalently linked N-confused porphyrin-porphyrin and Zn(II) porphyrin dyads

Chun Ting Poon, Shunsheng Zhao, Rick W K WONG*, Daniel W J KWONG

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

Dyads of a N-confused porphyrin (NCP) moiety covalently linked to a porphyrin free-base (H2P) or a zinc(II) porphyrinate (ZnP) moiety via a flexible alkyl chain of variable length have been synthesized. Photoluminescence study demonstrated an efficient excitation energy transfer from H2P/ZnP moiety to the NCP moiety. Measurement of the near-IR emission of singlet oxygen produced by these dyads via photosensitization showed that the NCP-ZnP dyads (F{cyrillic}Δ = (0.61-0.65) ± 0.13) were better 1O2 generators than the NCP-P dyads (F{cyrillic}Δ = (0.36-0.41) ± 0.08).

Original languageEnglish
Pages (from-to)664-668
Number of pages5
JournalTetrahedron Letters
Volume51
Issue number4
DOIs
Publication statusPublished - 27 Jan 2010

Scopus Subject Areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

User-Defined Keywords

  • Bisporphyrin
  • Energy transfer
  • N-confused porphyrin
  • Porphyrin
  • Singlet oxygen

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