A5017031956- Porphyrin and Phthalocyanine Chemistry
- X-ray Diffraction in Crystallography
- Photochemistry and Electron Transfer Studies
- Crystallization and Solubility Studies
- Metal complexes synthesis and properties
- Photodynamic Therapy Research Studies
- Oxidative Organic Chemistry Reactions
- Synthesis and Characterization of Heterocyclic Compounds
- Organic Chemistry Cycloaddition Reactions
- Magnetism in coordination complexes
- Luminescence and Fluorescent Materials
- Field-Flow Fractionation Techniques
- Material Properties and Applications
- Synthesis and Properties of Aromatic Compounds
- Catalysis and Hydrodesulfurization Studies
- Metal-Catalyzed Oxygenation Mechanisms
- Advanced Chemical Physics Studies
- Surface Chemistry and Catalysis
- Chemical Reactions and Mechanisms
- Regional Economic Development and Innovation
- Nanoplatforms for cancer theranostics
- Supramolecular Chemistry and Complexes
- Synthesis and Characterization of Pyrroles
- Organometallic Compounds Synthesis and Characterization
- Economic and Technological Developments in Russia
Ivanovo State University of Chemistry and Technology
2014-2024
University of Manitoba
2019-2022
Ivanovo State University
2018
The electronic and molecular structures of metal-free tetrabenzoporphyrin (H2TBP) its complexes with zinc, cadmium, aluminum, gallium indium were investigated by density functional theory (DFT) calculations a def2-TZVP basis set. A geometrical structure ZnTBP CdTBP was found to possess D4h symmetry; AlClTBP, GaClTBP InClTBP non-planar C4v symmetry. H2TBP belonged the point symmetry group D2h. According results natural bond orbital (NBO) analysis, M-N bonds had substantial ionic character in...
Novel complexes of cobalt(II) with sulfonated derivatives phthalocyanines are synthesized. The influence the group's number in peripheral substituent on solubility macrocycle and ability to form ordered structures solution is showed. Transition from H-aggregates monomeric phthalocyanine sandwich-type dimers was found during formation metallophthalocyanine 1,4-diazabicyclo[2.2.2]octane. catalytic activity metallophthalocyanines studied model Merox process.
Enhancement of the catalytic activity phthalocyanine catalysts by immobilizing them on polymer matrix has been studied. It found that immobilization cobalt(II) phthalocyanines polymers enhances their in oxidation sodium diethyldithiocarbamate air oxygen under mild conditions.
Difunctional and symmetric phthalonitriles were synthesized by nucleophilic substitution of brome nitro-group in 4-bromo-5-nitro-phthalonitrile for residues 4-amino-, 4-hydroxyl- 4-sulfanyl benzoic acid. Symmetrical difunctional substituted cobalt phthalocyanines obtained template synthesis based on mentioned phthalonitriles. Their spectral properties catalytic activity aerobic oxidation sodium [Formula: see text],[Formula: text]-carbomoditiolate investigated.
Present work contains kinetic data of oxidation sodium diethyldithiocarbamate in presence phthalocyanine catalysts. It is shown that nature peripheral substituent has a great influence on self-association phthalocyanines and its catalytic activity. Oxidation mechanism involving formation triple complex substrate, reduced form catalyst oxygen offered. also dithiocarbamic acids different than for cysteine.
We have developed a new synthetic strategy for the preparation of series isoindolin-1-imines and isoindolin-1-ones from aromatic ketones phthalonitrile. Self-condensation reactions these led to formation novel class benzo-fused, highly electron-deficient core-extended azadipyrromethene chromophores ("MB-DIPY"). The influence temperature, catalyst, template ions on self-condensation reaction rate, yield, stereoselectivity was examined in detail. New (sodium, zinc, metal-free compounds) were...
The excited state dynamics in two fully characterized pyridoneBODIPY–fullerene complexes were investigated using time-resolved spectroscopy. Photoexcitation was initially localized on the pyridoneBODIPY chromophore. energy rapidly transferred to fullerene, which subsequently underwent ISC form a triplet and returned via triplet–triplet transfer. This ping-pong transfer mechanism resulted efficient (>85%) overall conversion of constituent despite complete lack absence fullerene partner. small...
Electronic and geometric structures of Ca(II) Zn(II) complexes with porphyrazine (Pz) tetrakis(1,2,5-thiadiazole)porphyrazine (TTDPz) were investigated by density functional theory (DFT) calculations compared. The perimeter the coordination cavity was found to be practically independent on nature a metal ligand. According results natural bond orbital (NBO) analysis quantum atoms in molecules (QTAIM) calculations, Ca–N bonds possess larger ionic contributions as compared Zn–N. model...
The design of cargo carriers with high biocompatibility, unique morphological characteristics, and capability strong bonding fluorescent dye is highly important for the development a platform smart imaging diagnostics. In this paper, BODIPY-doped silica nanoparticles were prepared through “one-pot” soft-template method using sol-gel process. Several precursors have been used in synthesis presence to obtain silica-based materials most appropriate features immobilization BODIPY molecules....
Electronic and geometric structures of Y, La Lu complexes with porphyrazine (Pz) tetrakis(1,2,5-thiadiazole)porphyrazine (TTDPz) were investigated by density functional theory (DFT) calculations compared. The nature the bonds between metal atoms nitrogen has been described using analysis electron distribution in frame Bader's quantum molecule (QTAIM). Simulation interpretation electronic spectra performed use time-dependent (TDDFT) calculations. Description calculated IR was carried out...
Silica nanoparticles were obtained during the work according to two different sol–gel methods. In first one Schtrober's technique and series of cobalt phthalocyanine metal complexes varying in peripheral substituents used. Second method was performed using same but differed applying surface‐active substance (SAS) precursors – tetraethoxysilane (TEOS) aminopropyltrimethoxysilane (APTMOS). All hybrid materials analyzed via SEM, size single particle studied, which all cases about 200 nm. order...
The Knudsen effusion method with mass spectrometric control of the vapor composition was used to study possibility a congruent transition gas phase and estimate enthalpy sublimation metal-free tetrakis(1,2,5-thiadiazolo)porphyrazine its nickel complex (H2TTDPz NiTTDPz, respectively). geometrical electronic structure H2TTDPz NiTTDPz in ground low-lying excited states were determined by DFT calculations. studied complete active space (CASSCF) method, following accounting dynamic correlation...
The work reports catalytic properties of series cobalt phthalocyanines peripherally substituted with consistently changing sulfonated fragments.Data on heterogenization phthalocyaninates onto organic and inorganic polymers are provided.Comparing activity the macrocycles in dependence structure peripheral substituent as well polymer carrier's type is given.Application phthalocyanine's sulfonic acids for fine synthesis thiuram E upon both homogeneous heterogeneous catalysis shown to be prospective.
Current work is devoted to covalent immobilization of sulfonated derivatives cobalt phthalocyanines “Merox catalysts” on the surfaces polypropylene and polyethylene terephthalate. Their catalytic activity in reaction mild oxidation sulfur compounds disulfides with oxygen air was studied. Anchoring catalyst this polymer prevents its leaching promotes efficient recovering recycling without significant loss activity.
Hybrid materials based on organic polymers and Co II tetrasulfophthalocyanines are obtained.Polymer matrix was previously activated before macrocycle anchoring.Activation carried out by microwaves plasma-chemical treatment of polymer surface.The influence surface pretreatment the degree anchoring is shown.It found that glow discharge gives better for most optimal time.Catalytic activity synthesized in reaction sodium diethyldithiocarbamate mild oxidation studied.Samples face have shown close...
The influence of solvating power medium on self-organization metallophthalocyanines in solution is studied. It shown that phthalocyanine macrocycles form H -associates universal solvation medium. In case specific the nature peripheral substitution macrocycle plays important role upon formation ordered structure.
Abstract First sublimation enthalpies of heteroporphyrins: 10,15,20‐tetraphenyl‐21‐oxa‐ (HOPP), 5,10,15,20‐tetraphenyl‐21‐thia‐ (HSPP) and 5,10,15,20‐tetraphenyl‐21,23‐dithia‐ (S 2 PP) were measured by Knudsen effusion mass spectrometry: Δ subl H (T)=209±2 (561 K), 224±2 (552 K) 219±2 (577 kJ/mol, respectively. Geometry force field a free molecule HSPP was studied quantum chemistry, first gas‐phase experimental molecular structure heteroporphyrins derived electron diffraction. Theoretically...
Structural, spectroscopic and thermodynamic studies carried out in the scientific laboratories of Physics Department Ivanovo State University Chemistry Technology last 5-10 years are briefly reviewed. For citation: Girichev G.V., Giricheva N.I., Kudin L.S., Solomonik V.G., Belova N.V., Butman M.F., Vyalkin D.A., Dunaev A.M., Eroshin A.V., Zhabanov Yu.A., Krasnov Kuzmina L.E., Kuzmin I.A., Kurochkin I.Yu., Motalov V.B., Navarkin I.S., Pimenov O.A., Pogonin A.E., Sliznev V.V., Smirnov A.N.,...
Abstract Modification of porphyrins by a replacement N atom(s) with heteroatom(s) resulted in the so called heteroporphyrins which exhibit interesting physicochemical properties. In this work, spectral properties ions and neutral forms 5,10,15,20‐tetraphenyl‐21,23‐dithia porphyrin (S 2 PP) 5,10,15,20‐tetraphenyl‐21‐thia‐porphyrin (HSPP) have been investigated. According to spectrophotometric analysis acetonitrile – perchloric acid solution, dication H S PP 2+ reveals an ability coordinate...