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коллекция "otherreferats"
Главная Коллекция "Otherreferats" Химия
  • 241. Synthesis and complexity of new ligand with mercurysalt(ii)

    The syntheses of a new ligand: di (Furanyl Methylene hydrazono Ethyl) Benzene. It's structure, spectroscopy methods (IR, 13C NMR). Synthesizing of the complex by reactance the ligand with HgCh. Calcination process from mono nuclear complex, electrolyte.

    статья (1,1 M)
  • 242. Synthesis and crystal structure of an Ag(I) complex of composition (C9H7N(C3H5))2[AgBr2]Br(H2O)2

    Coordination behavior of Ag (I) with cations of N-allyl quinolinium. Synthesis of N-allyl quinolinium bromide. Determination of the structure of the x-ray crystal. Bromine ions of the second crystallographic type. Study silver nitrate compounds.

    статья (428,7 K)
  • 243. Synthesis and diuretic activity of 2-(5-(phenoxymethyl)-4-r1-1,2,4-triazole-3-ylthio)acetic acids and their salts

    Drugs based on the 1,2,4-triazole have a wide spectrum of biological activities. They are effective cardioprotectors, hepatoprotectors, anti-oxidants. Compounds with strong diuretic activity have been found among the newly synthesized compounds.

    статья (377,6 K)
  • 244. Synthesis and electrooptical properties of side-chain polymethacrylates and polycomplexes containing azobenzene moieties with different length Spacers

    The structure of the metal-containing azopolymers with electro-optical properties depending on the length of the spacer. Effect of electric field on absorption of metal-containing azopolymers. Reorientation of the dipole moments azobenzene groups.

    статья (168,1 K)
  • 245. Synthesis and modification of 2-(coumarin-3-yl)-3,4,5,6,7,8-hexahydropyrido [4',3':4,5]thieno[2,3-d]pyrimidin-4-ones

    Consideration the result of modification of 2-iminocoumarin-3-carboxamides with 2-amino-4,5,6,7-terahydrothieno[2,3-c]pyridin-3-carboxamides the novel 2-(coumarin-3-yl)-3,4,5,6,7,8-hexahydropyrido[4',3':4,5]thieno[2,3-d]pyrimidin-4-one derivatives.

    статья (111,4 K)
  • 246. Synthesis and study of antimicrobial properties of surfactants on the basis of cotton-seed oil, methyl diethanolamine and orthophosphoric acid

    To study antimicrobial properties of the synthesized surfactants, the method of consequent dilution was used. The experiments were carried out in the test tubes contained a surfactant at different concentrations and 1 ml of the physiological solution.

    статья (1,0 M)
  • 247. Synthesis and toxicity of Di-Na_salt of 2-(pyridine-4-iltio) succinic acid

    Search of bioactive substances containing in the molecule a heterocycle and a deputy with high antioxidant properties such as succinic acid. Antibacterial and cytotoxic action of Di-Na-salt. Methods of di-Na-salt of 2-(pyridine-4-iltio)succinic.

    статья (548,5 K)
  • 248. Synthesis of benzylidene and azocontaining polymers for photophisical application

    The polymers built with the use of the free radical polymerization of methacrylic monomers incorporating an azobenzene side-group and monomers with benzylidene fragments. The results of photochemical and optical activities of the corresponding elements.

    статья (288,8 K)
  • 249. Synthesis of n-benzoyl-n’-(9,10-dioxo-9,10-dihydroanthacen-1-yl) thioureas and quantum-chemical analysis of the reaction passing

    Study the interaction of an order of amino-anthraquinones with benzoylisothiocyanate. The process of obtaining the formation of new N-benzoyl-N '- (9,10-dioxo-9,10-dihydroanthacen-1- yl) -thioureas. Quantumchemical analysis of the passing reaction.

    статья (314,6 K)
  • 250. Synthesis of new n-aryl-2-[(4-amino-4H-1,2,4-triazolo-[4,3-b]pyradazin-3yl)thio] acetamide derivatives

    Prepared of n-aryl-2-[(4-amino-4H-1,2,4-triazol-3yl)thio] acetamides by interaction of amino-1,2,4-triazolyl-3thiol with n-aril-2-chloroacetamides and formation of n-aryl-2-[6,8-dimethyl[1,2,4]triazolo[4,3-b]pyradazin-3-yl)thio]acetamide derivatives.

    статья (93,9 K)
  • 251. Synthesis of novel surface active methacrylate monomers based on e-caprolactone

    Investigation of the reaction of e-caprolactone with methacrylic acid. Synthesis of the compound chloride with polyethylene glycol ether. Peculiarities of surface active methacrylate monomer. Surface tension in aqueous solution in contact with air.

    статья (196,5 K)
  • 252. Synthesis of Perfluoroalkyl Heterocycles Using Perfluoroolefins Containing a Reactive Group at the Double Bond

    Reactions of Thiocyanate and Isothiocyanate Derivatives of Fluoroolefins with N-Nucleophilic Reagents. The Influence of the N-Nucleophile on the Construction of Six-Membered Heterocycles. The Use of Fluoroolefins with a Carbonyl-Containing Substitutent.

    статья (1,2 M)
  • 253. Synthesis of sodium and potassium alkoxides using electrochemical methods

    The basic properties of alkoxides. Production technology of alkali metals alkoxides. Direct Synthesis in the Interaction of Metal and Alcohol. Interaction Metals Oxides and Hydroxides with Alcohols. Exchange reactions with alcohols, transesterification.

    статья (376,3 K)
  • 254. Synthesis of some novel thiazolo[4,5-b]pyridines and their tuberculostatic activity evaluation

    The efficient synthetic protocol for aminomethylation proceeding was developed which led to obtaining a series of novel 3-(phenylamino)-methyl derivatives of 5,7-dimethyl-6-phenylazo-3Н-thiazolopyridin-2-one. The conditions for aminomethylation reaction.

    статья (120,4 K)
  • 255. Template Synthesis of MoN Superconducting Nanowires

    New facile method for the controllable synthesis of high quality single-phase nanowires with from nanowires templates. Detailed characterization of the superconducting and transport properties of nanowires. Synthesis of porous nanowires and nanotubes.

    статья (604,6 K)
  • 256. The biological activity of 4-thioquinolines

    Determination of biological activity of newly synthesized physiologically active substances. Study of antimicrobial activity, inhibits the development of gram-positive and gram-negative microorganisms. The features of systematic studies of 4-ticinonline.

    статья (613,0 K)
  • 257. The chemistry, biosynthesis and biological activities of artemisinin

    Some aspects of sugar-derived heterocycles and their precursors which are utilized as the inhibitors against glycogen phosphorylases and are responsible for the release of mono-glucose from poly-glucose. The quantitative structure-activity relationship.

    научная работа (7,7 M)
  • 258. The distribution of essential chemical elements in meso-scale ecosystems of the Dniester's Precarpathia

    Distribution of essential chemical elements and toxicants in terrestrial phytomass of woody plants fir white European, which is a species of forest on the territory of the Dniester region. Estimation of biospheric and stabilize the environment functions.

    статья (149,9 K)
  • 259. The effect of the introduction of Ni2+ ions on the electrical and magnetic properties of InSe layered crystals

    Investigation of the influence intercalation ions of Ni2+ on the electrical properties of indium selenide crystals. The surface of InSe layered crystals. Investigation of magnetic properties of intercalated NiXInSe. The basic samples of InSe.

    статья (319,1 K)
  • 260. The effects of different cations on the physicochemical characteristics of casein micelles

    Physicochemical characterisation of casein micelles suspended in milk ultrafiltrate and enriched with different cations: Fe, Cu, Ca. The order of association of cations with casein micelles. Changes in hydrophobicity, zeta potential of casein micelles.

    статья (272,1 K)
  • 261. The evaluation of changes in sanitary and chemical properties of artificial leather during their stabilization by composite materials based on polyethyleneterephtalate waste

    The cycle of sanitary and chemical investigations of various artificial leathers and the polymer composition. The possibility of conducting direct stabilization of artificial leathers. The hygienic evaluation of polymers and polymer-containing materials.

    статья (335,7 K)
  • 262. The experimental study of the effect of raleukin on development of dithizone diabetes in rabbits

    Diabetes mellitus in the structure of endocrine diseases. The study of the effect of antioxidant properties of a biological product is a recombinant receptor antagonist Il-1 relacin and hypoglycemic action for major reaction non-enzymatic glycosylation.

    статья (291,9 K)
  • 263. The features of multiscaling and hierarchy of structures in zirconium alloys

    Experimental studies and calculations comparing the hierarchical structures at two zoom levels – nanometer and micrometer. The features of multiscaling and hierarchy in zirconium alloys. Data about the hierarchical structures of the multiscale chain.

    статья (1,3 M)
  • 264. The influence of modified methyl cellulose on the main properties of expanding cementing slurries

    The effect of modified methylcellulose on the main properties of expanding cementing slurries. When cementing low-temperature wells, expanding cementing slurries based on a mixture of Portland cement and gypsum alumina cement cement (30-25% GAC) are used.

    статья (16,7 K)
  • 265. The influence of the thermo-chemical treatment on the optical properties of YAG:Cr,Mg and GGG:Cr,Mg epitaxial films

    Investigation of optical absorption spectra of YAG: Cr, Mg, and GGG: Cr, Mg films during high-temperature annealing in oxidation and reduction atmospheres. Factors to increase in absorption in the visible region, the charge exchange of chromium ions.

    статья (500,1 K)
  • 266. The investigation of fire extinguishing ability of the powder materials by extended extinguishing and suppression of explosions of gas-airmixtures

    Determination explosion ability of fine-dispersion substances as slaked lime, standard fire extinguishing powder containing ammophos, sludge from the chemical unit of the cold rolling plant of the steel sheet containing iron oxide, dolomite dust.

    статья (2,5 M)
  • 267. The kinetics of the gas phase aldol condensation reaction of propionic acid with formaldehyde on B2O3-P2O5-WO3/SiO2 catalyst

    Study of kinetic parameters and the basic kinetic regularities of aldol condensation reaction of propionic acid with formaldehyde on B2O3-P2O5-WO3/SiO2 catalyst in the gas phase. Methods of obtaining polymer materials with valuable technical properties.

    статья (184,5 K)
  • 268. The molecular structure and chromatographic parameters of calix[4]аrеnehydroxymethylphosphonic acids

    A basic chromatographic characteristics of biologically significant calix[4]аrenehydroxymethylphosphonic acids. A study sodium salts in a reversed-phase high-performance liquid chromatography. The structure of calix[4]аrenehydroxymethylphosphonic acids.

    статья (957,1 K)
  • 269. The most important technologies of receiving barium sulfate from barite

    Deals with natural barite ores whose origin is associated with magmatic eruptions, the location of the most powerful deposits. Familiarization with the main applications of blanfixe. Definition of the main methods for obtaining artificial barium sulfate.

    статья (75,0 K)
  • 270. The Protein Protocols Handbook

    A cross-section of analytical techniques used for proteins and peptides. The Lowry Method for Protein Quantitation. Ultrafast Protein Determinations Using Microwave Enhancement. Flow Cytometric Quantitation of Cellular Proteins. The Nitric Acid Method.

    книга (7,6 M)

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