Effect of electric permittivity of the solvent on aggregation process of the water-soluble sulfonated metal phthalocyanines
作者： Krystyna Palewska , Juliusz Sworakowski , Józef Lipiński , Stanislav Nešpůrek
DOI: 10.1016/J.JPHOTOCHEM.2011.08.012
关键词:
摘要: Dimerization of sulfonated phthalocyanines divalent metals (Zn, Cu, and Co) in binary water-alcohol solutions was studied by spectroscopic techniques. The dimerization manifests itself changes the absorption spectra a decrease fluorescence intensity. equilibrium constants depend on electric permittivity solvent degree sulfonation. process can be semi-qualitatively described simple model taking into account solvation electrostatic interactions between phthalocyanine anions. effect has not been observed Al Si phthalocyanines. Experimentally determined quantum yields alcoholic range 0.74 0.015.
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