Differently substituted phthalocyanines: Comparison of calculated energy levels, singlet oxygen quantum yields, photo-oxidative stabilities, photocatalytic and catalytic activities

Shinohara, H.; Tsaryova, Olga; Schnurpfeil, Günter; Wöhrle, Dieter

doi:10.1016/j.jphotochem.2006.03.024

Cited by 90 publications

(44 citation statements)

References 34 publications

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“…One important property of phthalocyanines under irradiation in the absorption region is photosensitized generation of singlet oxygen [4,5,12,19,25]. In the present study, singlet oxygen quantum yields of dinuclear phthalocyanines Zn2, Zn3 and H 2 2 were measured and compared to the quantum yields of their mononuclear analogs H 2 1 and Zn1 and zinc tetra-tertbutylnaphthalocyanine Zn4 (literature value 0.41 [19]).…”

Section: Resultsmentioning

confidence: 98%

“…Singlet oxygen quantum yields were measured as described elsewhere [19,25]. Photosensitizer concent rations corresponding to an optical density of 0.2 at the Q-band maximum was used (0.74 mM of Zn1, 0.54 mM of Zn2, 0.37 mM of Zn3, or 0.50 mM of Zn4).…”

Section: Methodsmentioning

confidence: 99%

“…Interference filters for the corresponding wavelengths of the Q band absorptions (Andover Corp., band width at half-peak 10 nm) taken to get monochromatic light for irradiation. The quantum yields of photodecomposition [19,25] were determined at a 1 µM concentration of the photosensitizers. Only the irradiation times were increased.…”

Section: Methodsmentioning

confidence: 99%

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Singlet oxygen quantum yields and photostability of planar binuclear phthalocyanines

Makarov

Schnurpfeil

Rychagova

et al. 2017

J. Porphyrins Phthalocyanines

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ABSTRACT:The singlet oxygen ( 1 O 2 ) quantum yield of the near-infrared absorbing (l max = 839 nm) planar p-conjugated binuclear zinc phthalocyanine (ZnPc) was measured and compared to the 1 O 2 quantum yields of the mononuclear and the planar binuclear phthalocyanine without p-conjugation between Pc rings. In addition, the photooxidative stability of the p-conjugated binuclear Pc was determined and compared to the stabilities of the mononuclear ZnPc and the known near-infrared photosensitizer, zinc tetra-tert-butylnaphthalocyanine (l max = 761 nm). The results are explained by DFT calculations and cyclic voltammetry.

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Section: Resultsmentioning

confidence: 98%

Section: Methodsmentioning

confidence: 99%

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Singlet oxygen quantum yields and photostability of planar binuclear phthalocyanines

Makarov

Schnurpfeil

Rychagova

et al. 2017

J. Porphyrins Phthalocyanines

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“…Preparation of FePc(COOH) 4 and FePc(COOH) 4 /TiO 2 The synthesis of Fe (III) 2, 9, 16, 23-phthalocyanine tetracarboxylic acid (FePc(COOH) 4 ).FeCl 3 ⋅6H 2 O, urea, and trimellitic anhydride (molar ratio=0.25:20:1) were used as the raw materials to prepare FePc(COOH) 4 by a solid fusion method, and the product was purified [22].…”

Section: Methodsmentioning

confidence: 99%

Synthesis, Characterization and Visible Photocatalytic Performance of Iron (III) Tetracarboxyphthalocyanine-Sensitized TiO2 Photocatalyst

You¹,

Zhao²

2016

J Phys Chem Biophys

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“…It is well known that modifications on the MPc by introducing peripheral substituents and axial ligands can strongly influence and finally tune the solubility, photocatalytic, electrochemical, optical, conductive, etc. properties of the MPcs complexes [1]- [4]. The axial substitution produces relevant changes on the electronic structure of the molecule, in particular the pi-electronic distribution, as a consequence of changes in the spin density and dipole moment of the central metal-axial ligand bonds [5].…”

Section: Introductionmentioning

confidence: 99%

Conductive Behavior and Morphology of Axially Modified Gallium Phthalocyanine Thin Films onto Indium Tin Oxide Substrates

Rivera¹,

Reyes²,

Sánchez-Vergara³

et al. 2016

AMPC

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Semiconductor molecular films based on a gallium phthalocyanine chloride (GaPcCl) and a bidentate amine were prepared by using vacuum thermal evaporation and electrochemical techniques in order to investigate the preferred conduction paths within the films. Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM) were employed to characterize the morphology of the films. The conductivity measurements were performed with two different methods in order to investigate preferential conduction directions. The film transverse conductivity was obtained by using scanning tunneling spectroscopy (STS) and the in-plane film conductivity was measured with a four-point probe system. From spectroscopy measurements, the tunneling conductance (dI/dV) was also obtained. From these results, it was found that the conductive nature of the films was strongly influenced by the deposition technique which in turn defined the morphological characteristics of the film. The evaporated method showed better conductivity response and provided semiconductor characteristics in the film transverse direction with an in-plane ohmic response. Finally, contact angle measurements were performed and showed hydrophobic characteristics in all cases. * Corresponding author. M. Rivera et al.212

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Differently substituted phthalocyanines: Comparison of calculated energy levels, singlet oxygen quantum yields, photo-oxidative stabilities, photocatalytic and catalytic activities

Cited by 90 publications

References 34 publications

Singlet oxygen quantum yields and photostability of planar binuclear phthalocyanines

Singlet oxygen quantum yields and photostability of planar binuclear phthalocyanines

Synthesis, Characterization and Visible Photocatalytic Performance of Iron (III) Tetracarboxyphthalocyanine-Sensitized TiO2 Photocatalyst

Conductive Behavior and Morphology of Axially Modified Gallium Phthalocyanine Thin Films onto Indium Tin Oxide Substrates

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