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сколько стоит заказать работу? коллекция "otherreferats"
Главная Коллекция "Otherreferats" Химия
  • 331. 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)
  • 332. 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)
  • 333. 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)
  • 334. 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)
  • 335. Synthesis of silicas with carboxyl functionality using template method

    Analysis of the method of synthesis of new materials with carboxylic acid groups, based on the template method, was developed. The efficiency of this methodology was demonstrated by powder x-ray diffraction, infrared spectroscopy and thermal analysis.

    статья (168,1 K)
  • 336. 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)
  • 337. 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)
  • 338. Synthesis, physico-chemical properties and prognosis of the pharmacological activity of 4-phenyl-5-(1,2,3-benzotriazolyl-1)-3-mercapto-1,2,4-triazole(4H) derivatives

    The study of the synthesis and physicochemical properties of derivatives of 4-phenyl-5-(1,2,3-benzotriazolyl 1)-3-merkapto-1,2,4-triazole(4H). Due to computer prognosis data the substances synthesized are prospective anticonvulsants and antiasthmatics.

    статья (236,0 K)
  • 339. Technetium and rhenium pentacarbonyl perchlorates

    Сomparative analysis the chemistry of technetium and rhenium сarbonyl perchlorates [M(ClO4)(CO)5]. The descriptions of their molecular structure, physical properties, types of materials, methods and procedures for their synthesis and reactivity.

    статья (812,0 K)
  • 340. 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)
  • 341. 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)
  • 342. 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)
  • 343. The deoxygenation of water by batch on the iron containing composites basis

    The efficiency of using softened water in the removal of dissolved oxygen and iron ions has been determined. The dependence of the efficiency in the processes of the deoxygenation and iron removal of water on the filtering speed through the redox filter.

    статья (461,4 K)
  • 344. 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)
  • 345. 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)
  • 346. 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)
  • 347. The efficient synthesis of 3-R-6-thio-6,7-dihydro-2H-[1?2?4]triazino[2,3-c]-quinazoline-2-ones and their derivatives, antimicrobial and antifungal activity

    The formation of the potassium salt of 3-substituted 6-thio-6,7-dihydro-2H-[1,2,4]triazino[2,3-C]quinazoline-2-ones in the presence of potassium hydroxide in alcohols via reaction of 6-R-3-(2-aminophenyl)-1,2,4-triazin-5-ones (2) with carbon disulfide.

    статья (160,5 K)
  • 348. 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)
  • 349. 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)
  • 350. 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)
  • 351. 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)
  • 352. 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)
  • 353. 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)
  • 354. 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)
  • 355. The methanation of CO2 over CO-NI/AL2O3 catalysts at atmospheric pressure

    Research and characteristics of the methanation of carbon dioxide under atmospheric pressure over a catalyst containing 5% of metals prepared by the impregnation method. Measured of the specific surface area by low-temperature adsorption of argon.

    статья (368,6 K)
  • 356. 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)
  • 357. 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)
  • 358. The process of wastewater treatment with advanced oxidation methods to remove dye

    Quantum-chemical calculation of thermodynamic features dye. Spatial structure of the colouring agent "active bright orange CS/5K" molecule. Kinetics process of wastewater treatment from the dye. Mechanism of wastewater treatment from active bright orange.

    статья (187,9 K)
  • 359. 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)
  • 360. The quantitative theory of diffraction by spiral nanotubes

    Mathematical modelling of diffraction by spiral nanotubes of arbitrary chemical composition, whose structure is described by Bravais cells. The intensity distribution in the layer plane and along the line layer in the case of electronic microdiffraction.

    статья (212,7 K)

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