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Photophysical and Aggregation Studies of t‐Butyl‐Substituted Zn Phthalocyanines
Author(s) -
Fernández Daniel A.,
Awruch Josefina,
Dicelio Lelia E.
Publication year - 1996
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.1996.tb09631.x
Subject(s) - singlet oxygen , monomer , chemistry , phthalocyanine , dimer , homogeneous , triplet state , photochemistry , photosensitizer , tetra , fluorescence , singlet state , quantum yield , photodynamic therapy , oxygen , molecule , excited state , polymer , organic chemistry , medicinal chemistry , physics , quantum mechanics , nuclear physics , thermodynamics
Three potential photosensitizers for photodynamic therapy: tetra‐ t ‐butyl phthalocyaninato Zn(II), tetrakis‐(1,1‐dimethyl‐2‐phthalimido)ethylphthalocyaninato Zn(II), and tetrakis‐(1,1‐dimethyl‐2‐amino)ethylphthalocyaninato Zn(II), have been studied in homogeneous organic media. Dimerization constants and monomer and dimer spectra have been determined. Fluorescence, triplet and singlet oxygen quantum yìelds were measured and the photo‐physical characterization of the triplet state was performed for the three dyes. These parameters were evaluated in connection with aggregation results.