Spectral properties of cationic water-soluble metallo-porphyrins immobilized in a perfluorosulfonated ion-exchange membrane - The four-coordinate Pd(II) and Pt(II) complexes with two cationic water-soluble porphyrins: Meso-tetrakis(4-N-methylpyridyl)porphyrin and meso-tetrakis(4-N,N, N-tri-methylaminophenyl)porphyrin in Nafion(R) membrane and in Nafion(R) solution form face-to-face dimers with a characteristic blue shifted Soret band. The six-coordinate Rh(III) complexes are monomeric inside Nafion(R). All immobilized complexes exhibit a strong red phosphorescence at room temperature in the absence of oxygen. (English)
- New search for: Vasil'ev, Victor V.
- New search for: Vasil'ev, Victor V.
- New search for: Borisov, Sergey M.
- New search for: Maldotti, Andrea
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In:
Journal of porphyrins and phthalocyanines
;
7
, 11-12
; 780-786
;
2003
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ISSN:
- Article (Journal) / Print
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Title:Spectral properties of cationic water-soluble metallo-porphyrins immobilized in a perfluorosulfonated ion-exchange membrane - The four-coordinate Pd(II) and Pt(II) complexes with two cationic water-soluble porphyrins: Meso-tetrakis(4-N-methylpyridyl)porphyrin and meso-tetrakis(4-N,N, N-tri-methylaminophenyl)porphyrin in Nafion(R) membrane and in Nafion(R) solution form face-to-face dimers with a characteristic blue shifted Soret band. The six-coordinate Rh(III) complexes are monomeric inside Nafion(R). All immobilized complexes exhibit a strong red phosphorescence at room temperature in the absence of oxygen.
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Contributors:
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Published in:Journal of porphyrins and phthalocyanines ; 7, 11-12 ; 780-786
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Publisher:
- New search for: World Scientific
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Place of publication:Singapore
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Publication date:2003
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ISSN:
-
ZDBID:
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Type of media:Article (Journal)
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Type of material:Print
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Language:English
- New search for: 35.59
- Further information on Basic classification
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Keywords:
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Classification:
BKL: 35.59 Heterocyclische Verbindungen -
Source:
Table of contents – Volume 7, Issue 11-12
The tables of contents are generated automatically and are based on the data records of the individual contributions available in the index of the TIB portal. The display of the Tables of Contents may therefore be incomplete.
- 715
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OVERVIEW - New aspects of porphyrin coordination chemistry in Russia and former Soviet Union countries - The development of porphyrin chemistry in former Soviet Union countries and over the world are discussed. Some ideas which were cultivated during three conditional porphyrin periods are also discussed.Berezin, Boris D. et al. | 2003
- 719
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Oleic acid peroxidation in the presence of metalloporphyrins - The influence of free base of meso-tetrakis(3,5-di-tert-butyl-4-hydroxyphenyl)porphyrin and meso-tetraphenylporphyrin and their complexes of Co, Ni, Cu, Pt upon the radical chain oxidation of oleic acid as model substrates for lipid peroxidation has been studied. It was shown that the introduction of the antioxidative phenolic fragment into the porphyrin ring leads to the dual activity of phenolic porphyrins when compared with their tetraphenyl-substituted analogues in substrate oxidation.Milaeva, Elena R. et al. | 2003
- 725
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New bacteriochlorin derivatives with a fused N-aminoimide ring - An N-aminocycloimide derivative of bacteriochlorin p was first synthesized by treating bacteriopurpurin with hydrazine. The free amino group in this derivative admits alkylation and acylation. A preliminary in vitro assay of phototoxicity of N-aminocycloimide and its N,N-dimethyl derivative showed that they possess high photoinduced activity and no dark toxicity.Mironov, Andrey F. et al. | 2003
- 731
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Structure and excited state properties of multi-porphyrin arrays formed by supramolecular design - Self-assembled multiporphyrin arrays of controllable geometry and composition (up to 8 tetrapyrroles) have been formed via non-covalent binding interactions of the meso-phenyl bridged ZnOEP chemical dimers or trimers, (ZnOEP)2Ph or (ZnOEP) 3Ph2, with di- and tetrapyridyl substituted tetrapyrrole extra-ligands. In these complexes using steady-state and time-resolved measurements, energy transfer, photoinduced charge separation and exchange d-p effects have been studied in solutions of variable polarity at 77-293 K.Zenkevich, Eduard I. et al. | 2003
- 755
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The antimicrobial properties of new synthetic porphyrins - The dark toxicity and photosensitizing potentials of free base and Sn4+ -complexes of meso-tetrakis(N-methyl-6-quinolinyl)-substituted porphyrins and chlorins were tested on Gram-positive and Gram-negative bacteria and two species of yeasts. The Sn4+-complex of chlorin in comparison with free base and porphyrins is more effective in photo-inactivation of Gram-negative bacteria. The effects of Sn4+-complexes of porphyrins and chlorins on yeasts have been more expressed than the effect of free bases.Philippova, Tatyana O. et al. | 2003
- 761
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The interaction of formylporphyrins with weak CH-acids - A series of 2(a,b-unsaturated-g-keto)-5,10,15,20- tetraphenylporphyrins was obtained by condensation of 2-formyl-5,10,15,20-tetraphenylporphyrin with acetone, 1,4-diacetylbenzene, 2-acetylthiophene, acetylacetone and acetophenone according to the Claisen-Schmidt reaction. It is shown that this reaction passes through formation of an iminium salt formylporphyrin in the presence of free base piperidine and perchloric acid.Ishkov, Yurij V. et al. | 2003
- 766
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Primary photoprocesses in cationic 5,10,15,20-meso- tetrakis(4-N-methylpyridiniumyl)porphyrin and its transition metal complexes bound with nucleic acids - Photophysical properties of meso-tetrakis(4-N-methylpyridiniumyl)porphyrin (TMpyP4) and its metal complexes M(II)TMpyP4 (MChirvony, Vladimir S. et al. | 2003
- 775
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Microporous porphyrin assemblies. Interaction of NO2 gas with sublimed layers of meso-mono-4-pyridyl-tri-phenylporphyrinatocobalt(II) - Two types of nitro complexes are formed in the layers of meso-mono-4-pyridyl-tri-phenylporphyrinato cobalt(II) as a result of interaction with NO2 gas. The first one is the five-coordinate nitro complex similar to that obtained for CoTPP. The second is the six-coordinate nitro-complex in which the fifth coordination site is occupied by the pyridyl group of an adjacent molecule in the layer.Kurtikyan, Tigran S. et al. | 2003
- 780
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Spectral properties of cationic water-soluble metallo-porphyrins immobilized in a perfluorosulfonated ion-exchange membrane - The four-coordinate Pd(II) and Pt(II) complexes with two cationic water-soluble porphyrins: Meso-tetrakis(4-N-methylpyridyl)porphyrin and meso-tetrakis(4-N,N, N-tri-methylaminophenyl)porphyrin in Nafion(R) membrane and in Nafion(R) solution form face-to-face dimers with a characteristic blue shifted Soret band. The six-coordinate Rh(III) complexes are monomeric inside Nafion(R). All immobilized complexes exhibit a strong red phosphorescence at room temperature in the absence of oxygen.Vasil'ev, Victor V. et al. | 2003
- 787
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Quasi-line vibronic spectra of 2,3,12,13-tetramethyldibenzo- porphine and their interpretation - The quasi-line fluorescence and fluorescence excitation spectra of 2,3,12,13-tetra-methyldibenzoporphine have been obtained at 77 K in n-octane and analyzed. The normal-coordinate analysis of this molecule has been performed, and the spectra have been interpreted in detail. In the Soret band region the fluorescence excitation quasi-line spectra clearly reveal two 0-0 components. The problem of the nature of the Soret band of free-base porphyrins is discussed.Solovyov, Konstantin N. et al. | 2003
- 795
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Synthesis and spectral properties of ruthenium(II) complexes with tetra-15-crown-5-phthalocyanine and N-donor ligands - The synthesis of novel bis-axially coordinated ruthenium(II) complexes with tetra-15-crown-5-phthalocyanine (R4PcH2) and N-donor ligands (R4Pc)Ru(L2), LGorbunova, Yuliya G. et al. | 2003
- 801
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Fullerene complexes with cobalt(II) tetraphenyl-porphyrin: From molecular to ionic crystals - The complexes of cobalt(II) tetraphenylporphyrin (CoIITPP) with fullerenes C60 C70) and C60(CN)2 are discussed. Those are neutral (CoIITPP.fullerene.solvent) complexes, and the multi-component complexes ranging from neutral: (Cp2Fe.(CoIITPP.Py)2.fullerene.solvent) to ionic ones ((D2.+).CoIITPP.(fullerene.solvent) (D2Konarev, Dmitri V. et al. | 2003
- 807
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Stability of octaphenyltetraazaporphyrin complexes with rare earth metals in proton-donor media - The acid-base interactions and solvoprotolytic dissociation of octaphenyltetraa-zaporphyrin complexes with rare earth metals are discussed. The thermodynamic and kinetic stability of the acid forms of the complexes are compared.Khelevina, Ol'ga G. et al. | 2003
- 813
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Theoretical AM1 study of acidity of porphyrins, azaporphyrins and porphyrazines - The structure-acidity relationship in the series of non-substituted, meso- or b-substituted and b,b-annulated porphyrins and porpyrazines have been studied using AM1 method. Calculated first deprotonation enthalpy values (DPE) for gas phase show correlation with available experimental pK1a values in DMSO and can be used for prediction of acidity.Stuzhin, Pavel A. et al. | 2003