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 language | English |
|---|---|
| Pages (from-to) | 87-92 |
| Number of pages | 6 |
| Journal | Journal of Photochemistry and Photobiology A: Chemistry |
| Volume | 206 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 5 Jul 2009 |
Keywords
- Benzoporphyrin
- Chlorin
- Metal complex
- Oxygen sensor
- Phosphorescence