Synthesis and photophysics of new metallo phthalocyanine complexes with thiazole groups and their fluorescence quenching studies with benzoquinone

H. Yasemin Yenilmez, A. Mert Sevim, Zehra Altuntaş Bayir*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

The synthesis of novel, symmetrical, tetra substituted metallo- phthalocyanines (cobalt, zinc and copper) bearing four 2-(4-methyl-1,3-thiazol- 5-yl)ethoxy units was reported. The reaction of 2-(4-methyl-1,3-thiazol-5-yl) ethanol with 4-nitrophthalonitrile in the presence of K2CO 3 led to formation of 4-[2-(4-methyl-1,3-thiazol-5-yl)ethoxy] phthalonitrile. Co and Zn phthalocyanines were synthesized using microwave irradiation from the corresponding phthalonitrile compound and metal salts (CoCl2 and Zn(CH3COO)2) in hexanol in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU). Cu phthalocyanine was obtained by heating the phthalonitrile derivative and copper (II) chloride at 160 C in n-hexanol in the presence of DBU. The resulting products were purified by column chromatography and characterized by several chemical and spectroscopic analysis methods. Photophysical properties with zinc (II) phthalocyanine were found, including electronic absorption and fluorescence quantum yield. The fluorescence of the complexes was investigated in DMF and it was found that benzoquinone (BQ) was an effective quencher.

Original languageEnglish
Pages (from-to)11-17
Number of pages7
JournalSynthetic Metals
Volume176
DOIs
Publication statusPublished - 2013

Funding

This work was supported by Research Funds of Istanbul Technical University .

FundersFunder number
Istanbul Teknik Üniversitesi

    Keywords

    • Aggregation
    • Benzoquinone
    • Fluorescence
    • Phthalocyanine
    • Thiazole

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