Synthesis, characterization, and investigation of photochemical properties of tetra-substituted zinc phthalocyanines bearing 4-(3,5-dimethyl-1H-pyrazol-1-yl)phenyl moiety with different linker heteroatoms

Ziminov, A. V.; Sidunets, Yuri A.; Fundamensky, V. S.; Gurzhiy, Vladislav V.; Рамш, С. М.

doi:10.1016/j.ica.2019.119306

Cited by 10 publications

(5 citation statements)

References 79 publications

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“…The intention in the beginning was the improvement of solubility of highly hydrophobic Pc molecule. The further studies aim modifications of properties of absorption, fluorescence and singlet oxygen generation [25,26]. In addition, some new essential biological properties appear related to the cell-specificity, the uptake and the photocytotoxicity.…”

Section: Amino Acids Substituted Zn(ii)-phthalocyaninesmentioning

confidence: 99%

Phthalocyanines Structure Versus Photodynamic Effectiveness towards Pathogenic Microorganisms: Our Recent Experience

Mantareva

Ангелов

Syuleyman

et al. 2021

J-BPE

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Section: Amino Acids Substituted Zn(ii)-phthalocyaninesmentioning

confidence: 99%

Phthalocyanines Structure Versus Photodynamic Effectiveness towards Pathogenic Microorganisms: Our Recent Experience

Mantareva

Ангелов

Syuleyman

et al. 2021

J-BPE

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“…A study of the generation of singlet oxygen in water (Figure 11) showed that nanomicelles generate singlet oxygen with a low yield (0.03). Thus, the micelle contains practically no singlet oxygen, while upon release of the phthalocyanine complex, the quantum yield of singlet oxygen (in monomeric form) can be 50%–70% 37 . Also it was shown that phthalocyanine aggregates and micelles based on them can still exhibit photodynamic activity, in some cases in synergy with the photothermal and optoacoustic effects 34 .…”

Section: Resultsmentioning

confidence: 99%

“…The 4-(3-aminophenoxy)phthalonitrile was synthesized by known method using 3-aminophenol as starting compounds. 37 The experimental data was corresponding to literature data. 38 NMR spectra were recorded on a Bruker AVANCE-400 SB (400 MHz).…”

Section: Methodsmentioning

confidence: 99%

“…Methanol (98%, Vekton), triethylamine (99%, Sigma‐Aldrich), methylene chloride (98%, Vekton), petroleum ether (98%, Vekton), ethyl acetate (98%, Vekton), trifluoroacetic acid (99%, Sigma‐Aldrich) were used without prepurification. The 4‐(3‐aminophenoxy)phthalonitrile was synthesized by known method using 3‐aminophenol as starting compounds 37 . The experimental data was corresponding to literature data 38 …”

Section: Methodsmentioning

confidence: 99%

“…36 The data in Table 3 shows that the method of curcumin- phthalocyanine complex, the quantum yield of singlet oxygen (in monomeric form) can be 50%-70%. 37 Also it was shown that phthalocyanine aggregates and micelles based on them can still exhibit photodynamic activity, in some cases in synergy with the photothermal and optoacoustic effects. 34 Consequently, molecular brushes are promising agents for delivering hydrophobic drugs for photodynamic therapy.…”

Section: Behavior Of Pf-g-pmaa and Its Complexes In The Presence Of C...mentioning

confidence: 99%

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Molecular brushes with long polyfluorene backbones and polymethacrylic acid side chains: Luminescent properties and self‐organization in solutions

Kaskevich,

Simonova,

Romasheva

et al. 2024

Journal of Polymer Science

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A series of molecular brushes with a polyfluorene (PF) backbone and polymethacrylic acid side chains of varying lengths were prepared by atom transfer radical polymerization. The structure and composition of the synthesized compounds were confirmed by 1H NMR and IR spectroscopy. Effect of the length of the backbone on spectral and conformational parameters of the macromolecules in solutions was analyzed. The grafting density of side chains was about 90%. Spectral methods have been used to determine the dependence of side chain grafting on the luminescent properties of polymer solutions, including quantum yields. It was shown that an optimal length of polymethacrylic acid side chains provides solubility of the polymer brushes. Solutions of PF‐graft‐polymethacrylic acid complexes with the model substance curcumin were investigated. It was established that the molecular brushes containing curcumin form monomolecular micelles. Molecular brushes with zinc phthalocyanine, potential systems for photodynamic, and photothermal therapy, were studied.

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Mitigating Cobalt Phthalocyanine Aggregation in Electrocatalyst Films through Codeposition with an Axially Coordinating Polymer

Dean,

Soucy,

Rivera‐Cruz

et al. 2024

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Cobalt phthalocyanine (CoPc) is a promising molecular catalyst for aqueous electroreduction of CO2, but its catalytic activity is limited by aggregation at high loadings. Codeposition of CoPc onto electrode surfaces with the coordinating polymer poly(4‐vinylpyridine) (P4VP) mitigates aggregation in addition to providing other catalytic enhancements. Transmission and diffuse reflectance UV–vis measurements demonstrate that a combination of axial coordination and π‐stacking effects from pyridyl moieties in P4VP serve to disperse cobalt phthalocyanine in deposition solutions and help prevent reaggregation in deposited films. Polymers lacking axial coordination, such as Nafion, are significantly less effective at cobalt phthalocyanine dispersion in both the deposition solution and in the deposited films. SEM images corroborate these findings through particle counts and morphological analysis. Electrochemical measurements show that CoPc codeposited with P4VPonto carbon electrode surfaces reduces CO2 with higher activity and selectivity compared to the catalyst codeposited with Nafion.

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Synthesis, characterization, and investigation of photochemical properties of tetra-substituted zinc phthalocyanines bearing 4-(3,5-dimethyl-1H-pyrazol-1-yl)phenyl moiety with different linker heteroatoms

Cited by 10 publications

References 79 publications

Phthalocyanines Structure Versus Photodynamic Effectiveness towards Pathogenic Microorganisms: Our Recent Experience

Phthalocyanines Structure Versus Photodynamic Effectiveness towards Pathogenic Microorganisms: Our Recent Experience

Molecular brushes with long polyfluorene backbones and polymethacrylic acid side chains: Luminescent properties and self‐organization in solutions

Mitigating Cobalt Phthalocyanine Aggregation in Electrocatalyst Films through Codeposition with an Axially Coordinating Polymer

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