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- Title
Spectral and Photophysical Parameters of a Series of Hydrophobic Phthalocyanines and Porphyrins in Aqueous Micellar Solutions.
- Authors
Starukhin, A. S.; Korol', Yu. D.; Pavich, T. A.; Shershen', V. S.; Il'in, A. Yu.; Ramanenka, A. A.
- Abstract
A study has been carried out on the spectral and photophysical parameters of a series of hydrophobic metallocomplexes of phthalocyanine and porphyrins encapsulated in polymeric micelles in aqueous solution at 293 K. The fluorescence characteristics of the free bases and metallocomplexes with light ions [Mg(II) and Zn(II)] are only slightly altered upon going from solution in organic solutions to aqueous micellar media. In contradistinction, encapsulation of porphyrin compounds with heavy ions [Pd(II) and Pt(II)] in polymeric micelles leads to much greater quantum yields and phosphorescence lifetimes in aqueous micellar media in comparison with these parameters in organic solvents. This behavior was attributed to enhancement of the spin-orbital interaction for the compounds with Pd(II) and Pt(II) compounds as well as to a significant reduction of quenching in the polymeric micelles. The luminescence parameters of the compounds studied depend on their structure and the nature of the polymeric micelles.
- Subjects
MICELLAR solutions; AQUEOUS solutions; PORPHYRINS; PHTHALOCYANINES; MICELLES; PHOSPHORESCENCE; METALLOPORPHYRINS; PHOSPHORESCENCE spectroscopy
- Publication
Journal of Applied Spectroscopy, 2023, Vol 90, Issue 2, p308
- ISSN
0021-9037
- Publication type
Article
- DOI
10.1007/s10812-023-01537-3