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 Найдено в других БД:Труды Института высокотемпературной электрохимии УрО РАН (1)Труды сотрудников Института теплофизики УрО РАН (18)Труды сотрудников Института химии твердого тела УрО РАН (6)Публикации Чарушина В.Н. (2)
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Общее количество найденных документов : 100
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1.
Инвентарный номер: нет.
   
   A 10


   
    A generalized model of protolytic, complexing and colloidal properties of polyelectrolytes. Case study : N-(2-carboxyethyl)chitosans [] : доклад, тезисы доклада / S. YU. Bratskaya, A. Golikov, A. V. Pestov, A. Voit, Yu. G. Yatluk, V. A. Avramenko // EUCHIS 2009 - 9th International Conference of the European Chitin Society , Venice, Italy, 23-26 May 2009 : conference book. - Venice, Italy, 2009. - 21 (P1-5)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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2.
Инвентарный номер: нет.
   
   A 10


   
    A new anionic palladium(II) complex as a highly efficient cross-coupling catalyst [Text] : доклад, тезисы доклада / A. Mechaev, A. V. Pestov, Yu. G. Yatluk, M. G. Pervova, O. N. Chupakhin // 3rd EuCheMS Chemistry Congress "Chemistry - the Creative Force", Nuremberg, 29 august-02 ceptember2010. - Nuremberg, 2010. - P1353 : il.
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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3.
Инвентарный номер: нет.
   
   A 62


   
    Antioxidant and antimutagenic activity of N-(2-carboxyethyl)chitosan [Text] / G. Kogan, Yu. A. Skorik, I. Zitnanova, L. Krizkova, Z. Durackova, C. A. R. Gomes, Yu. G. Yatluk, J. Krajcovic // Toxicology and Applied Pharmacology . - 2004. - Vol. 201, № 3. - P303-310 : ил. - Библиогр.: с. 309-310 (49 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CARBOXYETHYLATION -- CHITOSAN -- EUGLENA GRACILIS -- OFLOXACIN -- ANTIOXIDANT -- ANTIMUTAGENICITY
Аннотация: The antioxidant and antimutagenic activities of the novel carboxyethyl derivatives of chitosan with three different degrees of substitution have been assayed in vitro in the unicellular flagellate Euglena gracilis subjected to the action of genotoxic agents acridine orange and ofloxacin. It has been demonstrated that chitosan derivatives exhibit concentration-dependent protective antigenotoxic activity against both mutagens. It is suggested that different mechanisms may be involved in its protective action—antioxidant activity in case of ofloxacin-induced DNA damage, as well as possible interaction with the cell membrane that prevents acridine orange from reaching the genetic compartments and subsequent damaging DNA through intercalative binding. Direct adsorption of acridine orange on chitosan derivatives was ruled out as a possible mechanism of protection on the basis of spectrophotometric measurements. Dependence of the antimutagenic properties of the studied chitosan derivatives on the degree of substitution was reversed in experiments involving acridine orange and ofloxacin, which also indicated different mechanisms of protection involved in these two cases.????

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4.
Инвентарный номер: нет.
   
   B 62


   
    Bis[N-(2-hydroxyethyl)-beta-alaninato]-copper(II) [Text] / A. V. Pestov, E. V. Peresypkina, A. V. Virovets, N. V. Podberezskaya, Yu. G. Yatluk, Yu. A. Skorik // Acta Crystallographica Section C: Crystal Structure Communications. - 2005. - Vol. 61, № 12. - Pm510-m512
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The CuII ion in the title complex, [Cu(C5H 10NO3)2] or [Cu(He-ala)2] [He-ala = W-(2-hydroxyethyl)-?-alaninate], resides at the inversion centre of a square bipyramid comprised of two facially arranged tridentate He-ala ligands. Each He-ala ligand binds to a CuII ion by forming one six-membered ?-alaninate chelate ring in a twist conformation and one five-membered ethanolamine ring in an envelope conformation, with Cu-N = 2.017 (2) A, Cu-OCoo = 1.968 (1) A and Cu-OOH = 2.473 (2) A. The [Cu(He-ala)2] molecules are involved in a network of O-H?O and N-H?O hydrogen bonds, forming layers parallel to the (101?) plane. The layers are connected into a three-dimensional structure by van der Waals interactions, so that the molecular centres form pseudo-face-centered close packing. © 2005 International Union of Crystallography????

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5.
Инвентарный номер: нет.
   
   C 21


   
    Carboxyalkylation of chitosan in the gel state / Yu. A. Skorik, A. V. Pestov, M. I. Kodess, Yu. G. Yatluk // Carbohydrate Polymers. - 2012. - Vol. 90, № 2. - С. 1176-1181
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CHITOSAN -- CHEMICAL MODIFICATION -- GEL TECHNIQUE
Аннотация: This study presents a new approach for direct carboxyalkylation of chitosan in the gel state by using aza-Michael addition and substitution reactions. Various reagents were applied including acrylic and crotonic acids, and alpha-, beta-, gamma-, delta-, and epsilon-halocarboxylic acids. The reaction of chitosan with gamma- and delta-halocarboxylic acids showed no target product formation either in solution or in the gel state. In the case of acrylic, crotonic, alpha- and beta-halocarboxylic acids, the reaction performed in the gel state (concentration of chitosan 20-40%) shows higher degree of substitution at lower reaction time and temperature than in diluted solutions (concentration of chitosan 0.5-2%). The results were discussed in terms of kinetics of the target and side reactions. H-1 and C-13 NMR confirmed that in all cases the carboxyalkylation of chitosan proceeds exclusively at the amino groups

\\\\Expert2\\nbo\\Carbohydrate Polymers\\2012, v. 90, p.1176.pdf
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6.
Инвентарный номер: нет.
   
   C 21


   
    Carboxyethenylation of polychlorobiphenyls / A. Mechaev, A. V. Pestov, Yu. G. Yatluk, M. G. Pervova, A. A. Panyukova // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2013. - Vol.49, №5. - С. 691-695. - Библиогр.: с. 695 (12 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
BUTYL ACRYLATE -- PALLADIUM CATALYSTS -- POLYCHLOROBIPHENYLS
Аннотация: For the first time 2-carboxyethenylation was performed with butyl acrylate in the presence of palladium catalysts of bromine derivatives of polychlorobiphenyls obtained by bromination of polychlorobiphenyls. The haloderivatives of the butyl phenylcinnamate are readily hydrolyzed and hydrodehalogenized affording a mixture of phenylhydrocinnamic acids

\\\\expert2\\NBO\\Russian Journal of Organic Chemistry\\2013, 49, (5), 691-695.pdf
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7.
Инвентарный номер: нет.
   
   C 51


    Chernyak, S. V.
    A simple synthesis of hexamethyldisilazane [Text] / S. V. Chernyak, Yu. G. Yatluk, A. L. Suvorov // Russian Journal of General Chemistry. - 2000. - Vol. 70, № 8. - P1313-1313
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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8.
Инвентарный номер: нет.
   
   C 74


   
    Complexation models of N-(2-carboxyethyl)chitosans with copper(II) ions [Text] / Yu. A. Skorik, C. A. R. Gomes, N. V. Podberezskaya, G. V. Romanenko, L. F. Pinto, Yu. G. Yatluk // Biomacromolecules. - 2005. - Vol. 6, № 1. - P189-195 . - ISSN 1525-7797
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The copper(II) complex formation equilibria of N-(2-carboxyethyl)chitosans with three different degrees of substitution (DS = 0.42, 0.92, and 1.61) were studied in aqueous solution by pH-potentiometric and UV-spectrophotometric techniques. It was demonstrated that the complexation model of CE-chitosans depends on DS: the [Cu(Glc-NR2)2] complexes are predominant for two lower substituted samples ("bridge model", log ?12 = 10.06 and 11.6, respectively), whereas the increase of DS leads to formation mainly of the [Cu(Glc-NR2)] complexes ("pendant model", log ?11 = 6.41). As a model for copper complexation with a disubstituted residue of CE-chitosan, the complex of N-methyliminodipropionate [CuMidp(H2O)]·(H2O) was synthesized and structurally characterized by XRD. The unit cell consists of two crystallographically nonequivalent Cu atoms having slightly distorted square pyramidal coordination; Midp constitutes the basal plane of the pyramid and acts as a tetradentate NO3 chelate-bridging ligand by the formation of two six-membered chelate rings (average Cu-O 1.99 A, Cu-N 2.04 A) and a bridge via carbonyl O atom (average Cu-O 1.99 A), an apical position is occupied by a water molecule (average Cu-Ow 2.30 A).

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9.
Инвентарный номер: нет.
   
   C 74


   
    Complexes of mono- and bis(2-carboxyethyl)-2-picolylamine: Synthesis and crystal and molecular structures [Electronic resource] / A. V. Pestov, A. E. Permyakov, P. A. Slepukhin, L. K. Neudachina, Yu. G. Yatluk // Russian Journal of Coordination Chemistry. - 2010. - Vol. 36, № 10. - P769-777
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: N-(2-Pyridylmethyl)iminodipropionic (I) and N-(2-pyridylmethyl)-3-aminopropionic acids (II) were obtained. A reaction of acid I with a Cu(II) salt gave a 2: 2 complex (III); a reaction of acid II with a Ni(II) salt yielded a 1 : 2 complex (IV). The crystal structures of these complexes were determined by X-ray diffraction. The abilities of compounds I and II to form complexes were compared with the literature data for other ligands containing the N-(2-pyridylmethyl)amino fragment. The structural features of the chelate complexes with 2-aminomethylpyridine derivatives were revealed, depending on the other substituents and the metal center

\\\\Expert2\\nbo\\Russian Journal of Coordination Chemistry\\2010, v. 36, N. 10, p.769.pdf
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10.
Инвентарный номер: нет.
   
   C 77


   
    Coordinational polymers on basis of chitosan and fluoricontaining lithium 1,3-diketonates [] : доклад, тезисы доклада / V. I. Filyakova, A. V. Pestov, N. S. Boltacheva, Yu. G. Yatluk, V. N. Charushin // XXIV Международная Чугаевская конф. по координационной химии и Молодежная конф.-шк. "Физико-химические методы в химии координационных соединений", СПб, 15-19 июня 2009 г. : тез. докл. - СПб., 2009. - С. 606-607
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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11.
Инвентарный номер: нет.
   
   C 89


   
    Critical properties of some tetraalkoxysilanes and tetraalkoxytitaniums with branched alkyl radicals / E. D. Nikitin, A. P. Popov, Yu. G. Yatluk, V. A. Simakina // Fluid Phase Equilibria. - 2012. - Vol.331. - С. 1-5
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CRITICAL PROPERTIES -- TETRAALKOXYSILANES -- TETRAALKOXYTITANIUMS
Аннотация: The critical pressures and the critical temperatures of tetraisopropoxytitanium, tetra-tert-butoxytitanium, and tetraisopropoxysilane have been measured. The decomposition of the substances studied begins at temperatures below their critical ones. A pulse-heating method which allows measuring the critical properties of thermally unstable compounds has been used. The times of heating from the beginning of a pulse to the moment of reaching the critical temperature were from 0.03 to 1 ms. The short residence times provided little degradation of the substances in the course of the experiments. The critical constants of tetraalkoxytitaniums and tetraalkoxysilanes with branched and straight alkyl chains have been compared. The experimental critical constants of tetraalkoxytitaniums and tetraalkoxysilanes have also been compared with those calculated using various group-contribution methods

\\\\Expert2\\nbo\\Fluid Phase Equilibria\\2012, v.331, p. 1-5.pdf
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12.
Инвентарный номер: нет.
   
   C 89


   
    Critical Temperatures and Pressures of Some Tetraalkoxytitaniums [Text] / E. D. Nikitin, A. P. Popov, Yu. G. Yatluk, V. A. Simakina // Journal of Chemical & Engineering Data. - 2010. - Vol. 55, № 1. - P178-183 : рис., табл.
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The critical pressures and the critical temperatures of nine tetraalkoxytitaniums, Ti[O(CH2)nH]4 with n = 2 to 10, have been measured. All of the substances studied begin to decompose at temperatures below their critical points. The method of pulse heating applicable to thermally unstable compounds has been used. Residence times were from (0.03 to 0.46) ms, which resulted in little decomposition of the substances during measuring. The contributions of the titanium(IV) atom in the group contribution methods of Constantinou and Gani and Marrero and Gani have been calculated from the experimental data. The critical pressures and temperatures of tetraalkoxytitaniums have been estimated by these methods

\\\\Expert2\\nbo\\Journal of Chemical and Engineering Data\\2010, v.55, p.178.pdf
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13.
Инвентарный номер: нет.
   
   C 89


   
    Critical Temperatures and Pressures of Straight-Chain Saturated Dicarboxylic Acids (C4 to C14) [Text] / E. D. Nikitin, A. P. Popov, N. S. Bogatishcheva, Yu. G. Yatluk // Journal of Chemical & Engineering Data. - 2004. - Vol. 49, № 6. - P1515-1520 : ил. - Библиогр.: с. 1520 (25 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
DICARBOXYLIC ACIDS -- CRITICAL TEMPERATURES -- CRITICAL PRESSURES -- PULSE HEATING
Аннотация: The critical temperatures and pressures of nine saturated straight-chain dicarboxylic acids HOOC(CH2)nCOOH with n = 2, 3, 4, 5, 6, 7, 8, 10, and 12 have been measured. All of the acids investigated are thermally unstable at their critical points. The method of pulse heating of a wire probe immersed in the liquid under study has been used. Residence times are from (0.01 to 1) ms. The experimental critical properties of dicarboxylic acids have been compared with the values calculated by the group-contribution methods of Ambrose, Joback, and Reid, Constantinou and Gani, and Marrero and Gani. ??

\\\\Expert2\\nbo\\Journal of Chemical and Engineering Data\\2004, v.49, p.1515.pdf
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14.
Инвентарный номер: нет.
   
   C 91


   
    Crystal structure of N-(2-hydroxyethyl)-beta-alanine and racemic mixture of the coordination stereoisomers of N-(2-hydroxyethyl)-beta-alaninatonickel(II) [Electronic resource] / A. V. Pestov, P. A. Slepukhin, A. V. Virovets, N. V. Podberezskaya, Yu. G. Yatluk // Journal of Structural Chemistry. - 2008. - Vol. 49, № 1. - P102-108
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: N-(2-Hydroxyethyl)-?-alaninatonickel(II) was synthesized by the interaction of basic nickel carbonate with N-(2-hydroxyethyl)-?-alanine. The structures of the chelating agent and its nickel complex were studied by single crystal X-ray diffraction. In the synthesized compound, the nickel ion lies at the center of an octahedron of the N and 2O donor atoms of two tridentate ligands, each ligand having a meridional conformation. The ligands around the central atom are arranged in perpendicular planes. This coordination of two ligands yields two stereoisomers, whose cocrystallization affords a racemate

\\\\Expert2\\nbo\\Journal of Structural Chemistry\\2008, V. 49, N 1, p.102.pdf
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15.
Инвентарный номер: нет.
   
   C 91


   
    Crystal structure of N-(3-hydroxypropyl)-beta-alanine and Bis(N-(3-hydroxypropyl)-beta-alaninato)dicopper(II) [Cu2 (Pro-ala)2] [Electronic resource] / A. V. Pestov, P. A. Slepukhin, L. S. Molochnikov, M. A. Ezhikova, M. I. Kodess, Yu. G. Yatluk // Russian Journal of Inorganic Chemistry (Zhurnal Neorganicheskoi Khimii). - 2010. - Vol. 55, № 2. - P201-208
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: N-(3-Hydroxypropyl)-beta-alanine was synthesized by the reacti on of 3-aminopropanol with acrylic acid. From this ligand and basic copper carbonate, bis(N-(3-hydroxypropyl)-beta-alaninato)dicopper(II) [Cu2 (C6H11NO3)2] was obtained. The structures of the chelating agent and the copper complex were studied by X-ray diffraction. The Cu(II) coordination polyhedron is a distorted square pyramid. Each ligand forms six-membered ?-alaninate and propanolamine chelate rings. The propoxy group functions as a bridge. In the crystal structure, the molecules form intermolecular coordination bonds C=OCu, which are perpendicular to the layers. The EPR signal typical of dimeric copper complexes is not observed due to low occupancy of the excited paramagnetic triplet state. The weak paramagnetic signal from monomeric copper complex allowed recording of the 1H NMR spectrum of [Cu2 (Pro-ala) 2] with characteristic line broadening and contact shift. It follows from the obtained data that on dissolution, the complex dissociates by 40% to give monomeric copper complexes

\\\\Expert2\\nbo\\Russian Journal of Inorganic Chemistry\\2010, v. 55, N 2, с.201.pdf
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16.
Инвентарный номер: нет.
   
   D 49


   
    Development of methods for preparation of Nd : YAG nanoparticles / I. S. Puzyrev, I. V. V'yukhina, M. Ivanov, Yu. G. Yatluk // Glass Physics and Chemistry. - 2012. - Vol.38, №4. - С. 427-430
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
SYNTHESIS -- NANOSIZED PRECURSORS -- YTTRIUM-ALUMINUM
Аннотация: Methods for synthesis of nanosized precursors for the preparation of yttrium-aluminum garnet from organic-inorganic derivatives of yttrium and aluminum have been developed. It has been shown that most of the methods for carrying out the process result in the formation of precursors with high specific surface area. The precursor obtained using nanosized powder of aluminum oxide and yttrium acetylacetonate is the least agglomerated. The data obtained can be used when preparing optical ceramic from yttrium-aluminum garnet

\\\\Expert2\\nbo\\Glass Physics and Chemistry\\2012, V. 38, N 4, P.427-430.pdf
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17.
Инвентарный номер: нет.
   
   E 27


   
    Effect of the titanium glycerolate precursor heat treatment procedure on the morphology and photocatalytic properties of TiO2 nanopowder / G. S. Zakharova, E. Andreikov, V. A. Osipova, Yu. G. Yatluk, I. S. Puzyrev // Inorganic Materials. - 2013. - Vol.49, №11. - С. 1127-1132. - Bibliogr. : p. 1132 (20 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
NANO POWDERS -- PHOTOCATALYTIC PROPERTY -- TiO2
Аннотация: We have studied the effect of titanium glycerolate precursor heat treatment on the morphology, structure, and photocatalytic properties of titanium dioxide nanopowders

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18.
Инвентарный номер: нет.
   
   G 34


   
    Gel-synthesis, structure, and properties of sulfur-containing chitosan derivatives [Electronic resource] / A. V. Pestov, O. V. Koryakova, I. I. Leonidov, Yu. G. Yatluk // Russian Journal of Applied Chemistry. - 2010. - Vol. 83, № 5. - P787-794
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The possibility of using the thermochemical approach to thermal decomposition of solids, previously developed by the author, to interpretation of the mechanism and kinetics of reduction of metal oxides with hydrogen was studied. Many properties of NiO reduction with hydrogen, including formation of metal nuclea, the nature of induction period, autocatalysis effect, equimolar and isobaric periods of reduction, the character of the effect of hydrogen pressure on reduction rate, and the nanocrystalline structure of a reduced metal, were explained in terms of the given approach

\\\\Expert2\\nbo\\Russian Journal of Applied Chemistry\\2010, v. 83, N 5, p.787.pdf
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19.
Инвентарный номер: нет.
   
   H 43


   
    Heavy metals removal by flocculation/precipitation using N-(2-carboxyethyl)chitosans [Text] / S. YU. Bratskaya, A. V. Pestov, Yu. G. Yatluk, V. A. Avramenko // Colloids and Surfaces A: Physicochemical and Engineering Aspects. - 2009. - Vol. 339, № 1-3. - P140-144
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Here we report on solution properties and flocculation performance of polyampholyte chitosan derivatives - N-carboxyethylated chitosans (CEC) - synthesized "in gel" by treatment of chitosan with acrylic acid. We show that carboxyethylation with the substitution degrees (DS) from 0.7 to 1.6 yields water-soluble derivatives, whose isoelectric points (IEP) range from 6.30 to 3.55. At pH 7.5 interaction of negatively charged CEC derivatives with positively charged colloids of the heavy metal hydroxides (Zn2+, Cu2+, Ni2+), serving as a model of postgalvanic wastewaters, results in lowering of electrokinetic potential of the hydroxide colloids and their precipitation at appropriate flocculant dose. Investigations of CEC flocculation performance depending on pH and DS show that the efficiency of metal removal decreases in the row Cu2+ Zn2+ Ni2+ corresponding to the row of the hydroxocomplex stability for these metals. The higher was pH of the system and DS of CEC derivative, the narrower was the flocculation window and the stronger was negative effect of flocculant overdosing on the efficiency of heavy metal removal. Based on the estimation of floc settling rates and the residual metal concentrations, we have concluded that the optimal DS of CEC derivatives for the precipitation of metal hydroxides is 0.7-1.0

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20.
Инвентарный номер: нет.
   
   H 65


   
    High selective spectrophotometric copper determination in undustrial product and in environmental objects using N-aril-3-aminopropionic acids [Text] / E. V. Osintseva, L. K. Neudachina, A. A. Vshivkov, Yu. G. Yatluk // International Congress on Analytical Sciences ICAS - 2006, M., 25-30 June 2006 : book of abstracts . - М., 2006. - Vol. 2. - P510. - Bibliogr. : p. 510 (2 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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