Photophysical properties of the new phosphorescent platinum(II) and palladium(II) complexes of benzoporphyrins and chlorins

  • S. M. Borisov
  • , D. B. Papkovsky
  • , G. V. Ponomarev
  • , A. S. DeToma
  • , R. Saf
  • , I. Klimant

Research output: Contribution to journalArticlepeer-review

Abstract

Several phosphorescent platinum(II) and palladium(II) complexes of tetrapyrrole dyes are prepared in an attempt to improve the compatibility with red laser diodes. The nature of meso-substituents in benzoporphyrin macrocycle is found to affect mainly the position of the Soret band and has little influence on the Q-bands. In rigid polymeric matrices these dyes possess more favourable photochemical properties than corresponding meso-tetraphenyltetrabenzoporphyrins. Platinum(II) chlorins show good compatibility with 635 nm laser diode and 632.8 line of He-Ne laser, and have moderate brightness with emission yields ∼2%. Photophysical properties and photostability of these dyes is assessed and compared with the known NIR-emitting oxygen indicators.

Original languageEnglish
Pages (from-to)87-92
Number of pages6
JournalJournal of Photochemistry and Photobiology A: Chemistry
Volume206
Issue number1
DOIs
Publication statusPublished - 5 Jul 2009

Keywords

  • Benzoporphyrin
  • Chlorin
  • Metal complex
  • Oxygen sensor
  • Phosphorescence

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