Spectroscopic and photophysicochemical properties of zinc(II) phthalocyanine substituted with benzenesulfonamide units containing schiff base

Öncül G. A., Öztürk Ö. F., Pişkin M.

MAIN GROUP CHEMISTRY, vol.22, no.1, pp.1-14, 2022 (SCI-Expanded)

  • Publication Type: Article / Article
  • Volume: 22 Issue: 1
  • Publication Date: 2022
  • Doi Number: 10.3233/mgc-220067
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.1-14
  • Çanakkale Onsekiz Mart University Affiliated: Yes


In this study, compounds (E)-4-((5-bromo-2-hydroxy-3-methoxybenzylidene)amino)-N-(pyridin-2-yl)benzenesulfonamide

1, (E)-4-((5-bromo-2-(3,4-dicyanophenoxy)-3-methoxybenzylidene)amino)-N-(pyridin-2-yl)benzenesulfonamide

2 and, complex 2(3),9(10),16(17),23(24)-tetra-[(E)-4-((5-bromo-3-methoxy-2-(λ1-oxidanyl)benzylidene)amino)-N-

(pyridine-2-yl)benzenesulfonamide]phthalocyaninato zinc(II) 3 were synthesized for the first time. Their structures (1–3)

were characterized by spectroscopic methods such as FTIR, 1H NMR,13C NMR, UV–vis, MALDI-TOF mass spectra and

elemental analysis. The spectroscopic, aggregation, photophysical and photochemical properties of zinc(II) phthalocyanine

3 in dimethyl sulfoxide were investigated and the effects on the above-mentioned properties were reported as a result of the

presence of benzenesulfonamide derivatives containing different bioactive groups, in their peripheral positions. In addition,

its above-mentioned properties were also reported by comparing different species with those of their substituted and/or

unsubstituted counterparts. The zinc(II) phthalocyanine 3 can be a potential photosensitizer candidate in photodynamic

therapy, which is an effective alternative therapy in cancer treatment, due to its good solubility in commonly known solvents

and monomeric species, as well as its adequate and favorable fluorescence, singlet oxygen production and photostability.