Synthesis and photophysical properties of a non-symmetrically substituted phthalocyanine-pyrene conjugate

Hande Pekbelgin Karaoğlu*, Ayfer Kalkan Burat

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Özet

An unsymmetrical zinc phthalocyanine (ZnPc) (5) bearing one pyrene (Py) and six tert-butylphenoxy units was synthesized in 3 steps. The unsymmetrical zinc phthalocyanine carrying the protecting group was synthesized in the first step. In the second stage, the protecting group was removed and in the final stage pyrene structure was introduced with the Sonagashira coupling reaction. The new compound was characterized by using spectroscopic techniques. The photophysical measurements of the conjugated structure were performed to determine the effect of the pyrene group on the fluorescence of Pc. It was determined that the absorption of the pyrene structure around 350 nm was overlapping with the B-band of phthalocyanine after conjugation. Fluorescence quantum yield (ΦF) and lifetime (TF) were calculated. The fluorescence quenching examinations were performed by adding the different concentration of 1,4-benzoquinone (BQ) in N,N-dimethylformamide (DMF) and the Stern-Volmer constant (Ksv) and quenching constant (kq) values of unsymmetrical zinc phthalocyanine (5) were determined.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)319-328
Sayfa sayısı10
DergiJournal of the Turkish Chemical Society, Section A: Chemistry
Hacim6
Basın numarası3
DOI'lar
Yayın durumuYayınlandı - 2019

Bibliyografik not

Publisher Copyright:
© 2019, Turkish Chemical Society. All rights reserved.

Finansman

This work was supported by the Research Fund of the Istanbul Technical University.

FinansörlerFinansör numarası
Istanbul Teknik Üniversitesi

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