Novel triazole bearing zinc(II) and magnesium(II) metallo-phthalocyanines: Synthesis, characterization, photophysical and photochemical properties

Dual-purpose zinc and silicon complexes of 1,2,3-triazole group substituted phthalocyanine photosensitizers: synthesis and evaluation of photophysical, singlet oxygen generation, electrochemical and photovoltaic properties

“…Although the F F value of 5 (SiPc) was higher than standard unsubstituted ZnPc and is lower than unsubstituted SiPc(Cl) 2 in DMSO. 38 Furthermore, the silicon complex (5) shows a higher uorescence quantum yield than zinc complexes containing 1,2,4-triazole group in the literature, 29 showing the superiority of the silicon complex over complexes containing similar groups. Fluorescence results revealed that phthalocyanines having the similar substituent; the silicon complex (5) showed a higher uorescence quantum yield than the zinc complex (4) due to relatively less aggregation in DMSO solution.…”

“…In the literature, there are only few studies about the synthesis of 1,2,3-triazole-substituted phthalocyanines, 27 despite there are many important studies about 1,2,4-triazole-substituted phthalocyanines. [28][29][30][31] In addition, photo-physicochemical and electrochemical properties of phthalocyanines have widely known but the examination of these properties have been made for only few of 1,2,3-triazole bearing phthalocyanines. There are no studies examining and comparing all the photophysical, singlet oxygen generation, electrochemical and photovoltaic properties of peripheral substituted zinc and axial substituted silicon phthalocyanine complexes.…”

Synthesis and Isolation of 2,9,17,23-Tetrakis[(3,5-dimethyl-1H-pyrazol-1-yl)phenoxy]phthalocyanine and Its Magnesium(II) and Zinc(II) Complexes

“…[17][18][19][20][21][22][23][24][25][26][27] These substituted phthalocyanines can be highly efficient photosensitizers of singlet oxygen due to dual or synergistic therapeutic effect. [28,29] However, only a few works devoted to phthalocyanines [30][31][32] and porphyrin [33] containing pyrazole substituents are known.…”

Azo-coupled zinc phthalocyanines: Towards broad absorption and application in dye-sensitized solar cells

“…The IR spectra of all the azo-coupled phthalocyanines featured Pc ring vibration peaks at around 1600 cm À1 (CH@N) and 1500 cm À1 (C@C) as expected. The 1 H NMR spectra of the four substituted azo-phthalocyanines were almost identical with those of the starting compounds 2, 3, 4 and 6 except for broadening and small shift due to the existence of statistical isomers and possible aggregation at the measured concentration [32]. For compounds 9 and 11, the integral ratio of the aromatic protons to aliphatic protons was similar to the corresponding phthalonitrile compounds.…”