Investigations of bis-chromophore systems: relationship between spectral behaviour and charge transfer in 2-(3-coumaroyl)-benzopyrylium perchlorates
The dependence of spectral properties and interfragmental charge transfer on excitation, relaxation and excited state deactivation of 2-(3-coumaroyl)-benzopyrylium perchlorates. The positions of emission bands and rate constants of radiationless.
Подобные документы
Consideration of the results of x-ray diffraction of the considered chemical compounds. Structural properties of the films of magnesium oxide. Substantiation of optimum parameters of temperature of synthesis of organic and many inorganic compounds.
статья, добавлен 30.07.2016Determine the optimal parameters of synthesis and base properties of nano-tubular crystals Mg-Ni chrysotiles. temperature ranges and pressure for the synthesis of nano-tubular crystals all synthesed chrysotile at the time of isothermal exposure.
статья, добавлен 30.07.2016Characteristics of the methods of improving the electrical properties, the proper maintenance alloys for electrical purposes. Analysis of the influence of heating temperature on microhardness of the types foreign made Aluminium-Zirconium alloy wires.
статья, добавлен 25.12.2016Study matter and change and the types of systems. Studying the molecules of life by organic chemistry. Identification and quantification of materials in a mixture in analytical chemistry. Chemical principles underlying basic biological systems.
эссе, добавлен 22.11.2015Classification of terpenes. Diterpenes - organic compounds of terpenes group consisting of 4 isoprene units. Properties. Application. Drugs of the triterpene saponins. Gliderinin. Bioslastilin. Physical and chemical properties of triterpene saponins.
презентация, добавлен 15.01.2017Synthesis, selection of new catalytic systems based on vanadium, molybdenum, zirconium, cobalt, iron for the conversion of methanol to formaldehyde and other valuable compounds, determination of their activity and kinetic regularities of the process.
статья, добавлен 12.12.2024- 57. Super deep penetration - new method of nanoreinforced composites producing based on polymer matrixes
Effect of the method of mixing isoprene rubber with nanofillers on the properties of nanocomposites. The thermostability of rubber based on isoprene elastomer with MMT. The physical-mechanical properties of rubber based on isoprene elastomer (SRI).
статья, добавлен 29.06.2017 Research kinetic characteristics of the initial stages of the processes of acid hydrolysis and condensation in the sol-gel systems tetraethoxysilane, ethanol-water by gas chromatography. Using quantum-chemical calculations hydrolysis parameters.
статья, добавлен 23.02.2016- 59. 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, добавлен 20.03.2024 Influence of increasing the temperature of thermochemical activation of up to 750 °C and increasing the dosage of potassium hydroxide to 2.1 g/g of activated carbon synthesis of hydrolytic lignin on the formation of adsorption properties of the AC.
статья, добавлен 30.07.2017Reactivity and Annulation of Another Ring to an Isoxazole Ring. Reactivity at the Ring Atoms. Reactivity of the Substituents. Syntheses of Condensed Heterocyclic Systems from Aminoisoxazoles. Ring Openings and Rearrangements. Synthesis of Aminoisoxazoles.
статья, добавлен 05.03.2013Investigations of nanoporous carbon materials from organic raw materials of vegetable nature appropriate to be used as an electrode component in supercapacitors with an aqueous electrolyte. Familiarization with voltammograms of experimental samples.
статья, добавлен 30.07.2016Polymers, inorganic and organic, amorphous and crystalline substances consisting of "Monomeric units" connected in a long macromolecule chemical bonds. Molecular modeling of melting process of solid polymers in the transition and plastic deformation.
статья, добавлен 23.02.2016- 64. Ir spectroscopy and tg analysis investigations of functionalized go and go-containing divinyl rubber
Analysis of the results of a study of graphene oxide and divinely rubber containing graphene oxide, functioning-RO (Oh)2 slot groups as a result of a kill-chlorophosphorylation reaction under the action of PCl3 in the presence of oxygen. Synthesis of GO.
статья, добавлен 10.05.2018 Brief biographical information about the life of F. Haber - a German chemist and Nobel laureate. Investigation the reaction of nitrogen with hydrogen, which produces ammonia. The essence of Le Chatelier's Principle. The main function of the catalyst.
реферат, добавлен 04.02.2015The carotenoid nature of the glycoside is protocrocin. Study of the dependence of the chemical composition of a saffron product on its growing season, time of collection, storage and processing. Accumulation of protocrokin and its transformation.
статья, добавлен 27.02.2021Study of kinetics of alkaline hydrolysis reaction of methyl esters of substituted 4,5-dimethoxy-N-phenyl-Anthranilic acids in binary solvent dioxane – water, analysis of the dependence lgkT from the nature and position of substituents in pantranco.
статья, добавлен 29.01.2016- 68. Quantum-dimensional effects in thermoelectric characteristics of lead chalcogenides nanostructures
Thermoelectric parameters of the thickness of the layer of nanostructures in the approximation of the variable of the Fermi energy. The Seebeck coefficient, electrical conductivity and their dependence on the pit width for nanofilms of lead chalcogenides.
статья, добавлен 24.02.2016 The features of production of Fe:MgAl2O4 nanopowders by evaporation of targets made from a oxide mixture by repetitively pulsed laser radiation. Differences in the phase compositions of the solid powder substances. A rate of the cooling the ytterbium.
статья, добавлен 18.09.2018Reviews on "Heterocyclic Compounds" on aspects such as synthesis, reactionmechanisms, structure complexity, properties, reactivity, stability, fundamental and theoretical studies, biology, biomedical, pharmacology, applications in material sciences.
материалы конференции, добавлен 05.03.2013Schematisation of defects in oil pipelines. Numerical and analytical methods of calculating stress. Paris power dependence. Methods of definition of cyclic crack resistance of a pipe material. Characteristics of cyclic crack resistance of steel.
статья, добавлен 29.06.2016The method of synthesis of fluorinated heterocycles. The use of mono- and 1,3-dicarbonyl substrates and their nitrogen-containing analogues. Biological activity, physical and chemical properties of heterocyclic compounds with perfluoroalkyl groups.
научная работа, добавлен 05.03.2013Plastic additives as a wide range of chemicals used by resin manufacturers, compounds and manufacturers to improve the properties, processing and characteristics of polymers. Features of their chemical composition and conditions of effective use.
статья, добавлен 10.03.2019The study of physico-chemical properties of modified forms of natural biopolymers – carboxymethyl cellulose and xanthan gums, their ability to film formation water-soluble polymeric compositions and the influence on growth and productivity of crops.
статья, добавлен 23.02.2016Effect of the segregation of electrically active dopants. Diffusion theory of the hole current. Polysilicon emitter contacts and its dependence on dopant concentration. Hole mobility versus grain size for two values of the total dopant concentration.
статья, добавлен 29.04.2017