Synthesis and photophysical properties of a new cationic water-soluble Zn phthalocyanine

J Photochem Photobiol B. 1997 Dec;41(3):227-32. doi: 10.1016/s1011-1344(97)00106-1.

Abstract

The synthesis of tetrakis (1,1-dimethyl-2-trimethylammonium)ethylphthalocyaninato Zn(II) tetraiodide 2--a new cationic phthalocyanine--is reported as well as its photophysical properties in water, relevant for the use of this dye as photodynamic sensitizer. The hydrophobicity of the macrocycle leads to strong aggregation which lowers the fluorescence and singlet oxygen quantum yields of aqueous solutions of 2. Photophysical parameters agree with those of other Zn phthalocyanines when correction is performed for the fraction of light absorbed by the monomer.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cations
  • Dimerization
  • Fluorescence
  • Fluorescent Dyes / chemical synthesis
  • Fluorescent Dyes / chemistry*
  • Indoles / chemical synthesis
  • Indoles / chemistry*
  • Isoindoles
  • Molecular Structure
  • Organometallic Compounds / chemical synthesis
  • Organometallic Compounds / chemistry*
  • Oxygen / metabolism
  • Radiation-Sensitizing Agents / chemical synthesis
  • Radiation-Sensitizing Agents / chemistry*
  • Singlet Oxygen
  • Solubility
  • Water
  • Zinc

Substances

  • Cations
  • Fluorescent Dyes
  • Indoles
  • Isoindoles
  • Organometallic Compounds
  • Radiation-Sensitizing Agents
  • zinc(II)-tetrakis(1,1-dimethyl-2-trimethylammonium)ethylphthalocyanine
  • Water
  • Singlet Oxygen
  • Zinc
  • Oxygen
  • phthalocyanine