Borisov, SM, Papkovsky, DB, Ponomarev, GV, DeToma, AS, Saf, R, Klimant, I;

2009

June

Journal of Photochemistry and Photobiology A-Chemistry

Photophysical Properties of The New Phosphorescent Platinum(Ii) and Palladium(Ii) Complexes of Benzoporphyrins and Chlorins

Validated

()

206

1

87

92

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 lie-Ne laser, and have moderate brightness with emission yields similar to 2%. Photophysical properties and photoslability of these dyes is assessed and compared with the known NIR-emitting oxygen indicators. (C) 2009 Elsevier B.V. All rights reserved..

DOI 10.1016/j.jphotochem.2009.05.018