Synthesis, electrochemical and photophysical studies of axially substituted quarternizable titanyl phthalocyanines

Yasin Arslanoǧlu, Ersin Hayran, Esin Hamuryudan*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

This work reports on the synthesis, characterization, photophysical properties and electrochemical characterization of new tetra-substituted titanium phthalocyanine with dimethylaminoethanol groups on peripheral positions (2) and water-soluble quaternized counterpart. The water-soluble titanium(IV) phthalocyanine derivative (3) was found to be aggregated in aqueous media but was partially or fully disaggregated in the presence of a surfactant Triton X-100. The capping of the titanyl (metaloxo) inner core with catechol derivatives (4-7) were also synthesized. The axially substituted titanium phthalocyanines show high solubility and a low aggregation tendency due to the steric hindrance. The structures of these compounds were characterized by using elemental analyses, UV-Vis, FT-IR, 1H NMR and mass spectroscopies. Their photophysical properties were also studied and fluorescence quantum yields were found to range from 0.02 to 0.13. The electrochemical properties of 2 were also investigated by using cyclic voltammetry in this report.

Original languageEnglish
Pages (from-to)340-346
Number of pages7
JournalDyes and Pigments
Volume97
Issue number2
DOIs
Publication statusPublished - May 2013

Funding

This work was supported by the Istanbul Technical University and TUBITAK .

FundersFunder number
TUBITAK
Istanbul Teknik Üniversitesi

    Keywords

    • Axial substitution
    • Fluorescence
    • Photodynamic therapy
    • Phthalocyanine
    • Titanyl
    • Water soluble

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