Water-soluble silver(II) and gold(III) porphyrins

The effect of structural distortion on the photophysical and photochemical behavior

Gergely Harrach, Zsolt Valicsek, O. Horváth

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Equilibrium characterization, magnetic susceptibility and fluorescence measurements proved that the silver(II) porphyrin complex formed in the reaction of the Ag+ ion and the 5,10,15,20-tetrakis(4-sulfonatophenyl) porphyrin ligand is of sitting-atop (SAT) type. The complex also exhibits typical SAT features as regards its photoredox degradation reactions, which might be utilized in photodynamic therapy. On the contrary, the corresponding gold(III) porphyrin is unambiguously of planar structure, which does not show any fluorescence and photoinduced degradation. The deviating structures, and hence, photoinduced behaviors of these complexes can be attributed to the effect of the different ionic radii (rion(Ag2+) = 94 pm; r ion(Au3+) = 85 pm).

Original languageEnglish
Pages (from-to)1756-1761
Number of pages6
JournalInorganic Chemistry Communications
Volume14
Issue number11
DOIs
Publication statusPublished - Nov 2011

Fingerprint

Porphyrins
Silver
porphyrins
Gold
Fluorescence
silver
Ions
gold
Degradation
Photodynamic therapy
Water
Magnetic susceptibility
water
degradation
fluorescence
planar structures
Ligands
therapy
ions
magnetic permeability

Keywords

  • Gold
  • Photochemistry
  • Photodynamic therapy
  • Porphyrin
  • Silver
  • Sitting-atop features

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry

Cite this

Water-soluble silver(II) and gold(III) porphyrins : The effect of structural distortion on the photophysical and photochemical behavior. / Harrach, Gergely; Valicsek, Zsolt; Horváth, O.

In: Inorganic Chemistry Communications, Vol. 14, No. 11, 11.2011, p. 1756-1761.

Research output: Contribution to journalArticle

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