The synthesis and spectral investigation of a novel highly water-soluble, aggregation-free antimony(V)-phthalocyanine absorbing light in optical therapeutical window

Hiroaki Isago*, Harumi Fujita, Tamotsu Sugimori

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

A novel antimony-phthalocyanine, [Sb(H3tsppc)(OH)2], where H3tsppc denotes monodeprotonated tetrakis{(2′,6′- dimethyl-4′-sulfonic acid)phenoxyl}phthalocyaninate, has been synthesized through sulfonation of [Sb(tppc)(OH)2]+ (tppc denotes tetrakis{(2′,6′-dimethyl)phenoxyl}phthalocyaninate) in concentrated sulfuric acid. This compound is highly soluble in water (ca. 4 × 10 - 2 M) without surfactant or alcohol. Moreover, it has been found free from aggregation in water up to almost 10- 4 M, unlike its copper and metal-free analogues, and show an intense optical absorption and emission band in optical therapeutical window (700-800 nm). The axial hydroxyl groups play a crucial role in disaggregation of the antimony derivative in water.

Original languageEnglish
Pages (from-to)111-117
Number of pages7
JournalJournal of Inorganic Biochemistry
Volume117
DOIs
StatePublished - 2012/12

Keywords

  • Aggregation-free
  • Antimony complex
  • Phthalocyanine
  • Water-solubility

ASJC Scopus subject areas

  • Biochemistry
  • Inorganic Chemistry

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