Search Results - "Kazheva, Olga"

Gladstone–Dale compatibility, electronic polarizability and vibrational spectroscopy of minerals and inorganic compounds with V4+O and V4+O2 vanadyl groups by Chukanov, Nikita V., Fischer, Reinhard X., Kazheva, Olga N., Aksenov, Sergey M.

“…VO and VO2 vanadyl groups with short (typically 1.57–1.68 Å), essentially covalent, V—O bonds are common for V4+‐bearing oxysalts with [5]‐ and [6]‐coordinated…”
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Gladstone-Dale compatibility, electronic polarizability and vibrational spectroscopy of minerals and inorganic compounds with V 4+ O and V 4+ O 2 vanadyl groups by Chukanov, Nikita V, Fischer, Reinhard X, Kazheva, Olga N, Aksenov, Sergey M

“…VO and VO vanadyl groups with short (typically 1.57-1.68 Å), essentially covalent, V-O bonds are common for V -bearing oxysalts with [5]- and [6]-coordinated…”
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Refinement of the crystal structure of fresnoite, Ba2TiSi2O8, from Löhley (Eifel district, Germany); Gladstone–Dale compatibility, electronic polarizability and vibrational spectroscopy of minerals and inorganic compounds with pentacoordinated TiIV and a titanyl bond by Chukanov, Nikita V., Kazheva, Olga N., Fischer, Reinhard X., Aksenov, Sergey M.

“…Most known compounds with five‐coordinated Ti4+ are natural and synthetic titanosilicates. The crystal structure of natural fresnoite, Ba2TiSi2O8 [tetragonal,…”
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Refinement of the crystal structure of fresnoite, Ba 2 TiSi 2 O 8 , from Löhley (Eifel district, Germany); Gladstone-Dale compatibility, electronic polarizability and vibrational spectroscopy of minerals and inorganic compounds with pentacoordinated Ti IV and a titanyl bond by Chukanov, Nikita V, Kazheva, Olga N, Fischer, Reinhard X, Aksenov, Sergey M

“…Most known compounds with five-coordinated Ti are natural and synthetic titanosilicates. The crystal structure of natural fresnoite, Ba TiSi O [tetragonal,…”
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Synthesis and study of C -substituted methylthio derivatives of cobalt bis(dicarbollide) by Stogniy, Marina Yu, Kazheva, Olga N, Chudak, Denis M, Shilov, Gennady V, Filippov, Oleg A, Sivaev, Igor B, Kravchenko, Andrey V, Starodub, Vladimir A, Buravov, Lev I, Bregadze, Vladimir I, Dyachenko, Oleg A

“…The -methylthio derivatives of cobalt bis(dicarbollide) were synthesized by reaction of anhydrous CoCl with -carborane [7-MeS-7,8-C B H ] and isolated as a…”
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Saranovskite, SrCaFe2+2(Cr4Ti2)Ti12O38, a new crichtonite-group mineral by Chukanov, Nikita V., Rastsvetaeva, Ramiza K., Kazheva, Olga N., Ivanov, Oleg K., Pekov, Igor V., Agakhanov, Atali A., Van, Konstantin V., Shcherbakov, Vasiliy D., Britvin, Sergey N.

“…The new crichtonite-group mineral saranovskite, ideally SrCaFe 2+ 2 (Cr 4 Ti 2 )Ti 12 O 38 , was discovered in the Glavnoe Saranovskoe deposit, Middle Urals,…”
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New Radical-Cation Salts Based on the TMTTF and TMTSF Donors with Iron and Chromium Bis(Dicarbollide) Complexes: Synthesis, Structure, Properties by Chudak, Denis M., Kazheva, Olga N., Kosenko, Irina D., Shilov, Gennady V., Sivaev, Igor B., Abashev, Georgy G., Shklyaeva, Elena V., Buravov, Lev I., Pevtsov, Dmitry N., Starodub, Tatiana N., Bregadze, Vladimir I., Dyachenko, Oleg A.

“…New radical-cation salts based on tetramethyltetrathiafulvalene (TMTTF) and tetramethyltetraselenefulvalene (TMsTSF) with metallacarborane anions…”
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Ion-exchange properties of the natural zeolite amicite by Chukanov, Nikita V., Kazheva, Olga N., Chervonnaya, Nadezhda A., Varlamov, Dmitry A., Ermolaeva, Vera N., Pekov, Igor V., Shilov, Gennadiy V.

“…Crystals of the natural zeolite amicite, ideally K4Na4(Al8Si8O32)·10H2O, were ion-exchanged in the reactions with 0.1 N aqueous solutions of AgNO3, RbNO3,…”
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Crystal Chemistry and Properties of Elpidite and Its Ag-Exchanged Forms by Natalia V. Zubkova, Rositsa P. Nikolova, Nikita V. Chukanov, Vladislav V. Kostov-Kytin, Igor V. Pekov, Dmitry A. Varlamov, Tatiana S. Larikova, Olga N. Kazheva, Nadezhda A. Chervonnaya, Gennadiy V. Shilov, Dmitry Yu. Pushcharovsky

“…Elpidite from the Lovozero alkaline complex, Kola Peninsula, Russia, and Ag-exchanged forms of elpidite from two different localities (Lovozero and Khan Bogdo,…”
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A Domino Reaction of α,β-Acetylenic γ-Hydroxy Nitriles with Arenecarboxylic Acids: An Unexpected Facile Shortcut to 4-Cyano-3(2H)-furanones by Trofimov, Boris A, Shemyakina, Olesya A, Mal’kina, Anastasiya G, Ushakov, Igor’ A, Kazheva, Olga N, Alexandrov, Grigorii G, Dyachenko, Oleg A

“…An unexpected facile domino reaction of α,β-acetylenic γ-hydroxy nitriles with arenecarboxylic acids (Et3N, MeCN, 20−25 °C, 48 h) affords…”
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Reactions of 2- and 4-pyrones with secondary phosphine chalcogenides: a facile synthesis of functional phosphorylated pyrones by Gusarova, Nina K., Volkov, Pavel A., Ivanova, Nina I., Sukhov, Boris G., Larina, Ludmila I., Kazheva, Olga N., Alexandrov, Grigorii G., D’yachenko, Oleg A., Trofimov, Boris A.

“…The oxidative cross-coupling between 4-hydroxy-6-methyl-2-pyrone or 3-hydroxy-2-methyl-4-pyrone and secondary phosphine chalcogenides proceeds in CCl4/Et3N…”
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Synthesis of Functionalized 3,4-Dihydropyrans via Rearrangement of the Products of a One-Pot Diastereoselective Assembly of Ketones and Acetylene by Schmidt, Elena Yu, Trofimov, Boris A., Zorina, Nadezhda V., Mikhaleva, Albina I., Ushakov, Igor A., Skital'tseva, Elena V., Kazheva, Olga N., Alexandrov, Grigorii G., Dyachenko, Oleg A.

“…The products of the one‐pot assembly of ketones and acetylene, 7‐methylene‐6,8‐dioxabicyclo[3.2.1]octanes, congeners of an insect pheromone frontalin, undergo…”
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Molecular Conductors with a 8-Hydroxy cobalt Bis(dicarbollide) Anion by Kazheva, Olga N, Alexandrov, Grigorii G, Kravchenko, Andrey V, Kosenko, Irina D, Lobanova, Irina A, Sivaev, Igor B, Filippov, Oleg A, Shubina, Elena S, Bregadze, Vladimir I, Starodub, Vladimir A, Titov, Lev V, Buravov, Lev I, Dyachenko, Oleg A

“…Molecular conductors based on the 8-hydroxy cobalt bis(dicarbollide) anion, (TMTTF)[8-HO-3,3′-Co(1,2-C2B9H10)(1′,2′-C2B9H11)] (1),…”
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Unexpected diastereoselective one-pot assembly of hexahydroazulenones from 2-alkylcyclohexanones and arylacetylenes in KOH/DMSO suspension by Trofimov, Boris A., Schmidt, Elena Yu, Skitaltseva, Elena V., Zorina, Nadezhda V., Protsuk, Nadezhda I., Ushakov, Igor A., Mikhaleva, Albina I., Dyachenko, Oleg A., Kazheva, Olga N., Aleksandrov, Grigorii G.

“…2-Alkylcyclohexanones react with arylacetylenes (KOH/DMSO, 100°C, 1h) to afford unexpectedly hexahydroazulenones in 34–50% yields and ca. 100%…”
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Chemo-, regio- and stereospecific addition of amino acids to acylacetylenes: a facile synthesis of new N-acylvinyl derivatives of amino acids by Glotova, Tatyana E., Dvorko, Marina Yu, Ushakov, Igor A., Chipanina, Nina N., Kazheva, Olga N., Chekhlov, Anatolii N., Dyachenko, Oleg A., Gusarova, Nina K., Trofimov, Boris A.

“…The one-pot reaction of natural amino acids (glycine, β-alanine, γ-aminobutyric and ɛ-aminocapronic acids, d, l-valine, d, l-leucine, anthranilic acid) with…”
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C(2)-Functionalization of 1-substituted imidazoles with cyanoacetylenes and aromatic or heteroaromatic aldehydes by Trofimov, Boris A., Andriyankova, Ludmila V., Belyaeva, Kseniya V., Mal’kina, Anastasiya G., Nikitina, Lina P., Dyachenko, Oleg A., Kazheva, Olga N., Alexandrov, Grigorii G., Shilov, Gennadii V., Afonin, Andrei V., Ushakov, Igor’ A.

“…Substituted imidazoles (substituents are Me, Et, i-Bu, n-Hexyl, (CH 2) 2S–Bu- n, Ph, Bn) react smoothly (room temperature, without catalyst and solvent) with…”
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Tandem regio- and stereospecific cyclization of ethyl isonicotinate with cyanoacetylenic alcohols to provide novel polycondensed heterocyclic systems by Trofimov, Boris A., Mal’kina, Anastasiya G., Nosyreva, Valentina V., Shemyakina, Olesya A., Albanov, Alexander I., Afonin, Andrei V., Kazheva, Olga N., Alexandrov, Grigorii G., Dyachenko, Oleg A.

“…Ethyl isonicotinate reacts with tertiary cyanoacetylenic alcohols under exceptionally mild conditions (room temperature, without catalyst or solvent) to afford…”
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Stereoselective annelation of 3-substituted imidazo[4,5-b]pyridines with cyanoacetylenic alcohols and domino rearrangement of the adducts by Trofimov, Boris A., Andriyankova, Ludmila, Nikitina, Lina, Belyaeva, Kseniya, Malkina, Anastasiya, Dyachenko, Oleg, Kazheva, Olga, Chekhlov, Anatolii, Afonin, Andrei

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Organometallic Synthesis, Molecular Structure, and Coloration of 2,7-Disubstituted 1,8-Bis(dimethylamino)naphthalenes. How Significant Is the Influence of “Buttressing Effect” on Their Basicity? by Pozharskii, Alexander F, Ryabtsova, Oksana V, Ozeryanskii, Valery A, Degtyarev, Alexander V, Kazheva, Olga N, Alexandrov, Gregory G, Dyachenko, Oleg A

“…On treatment of 2,7-dilithio- (6a) and 2,7-bis(bromomagnesio)- (6b) naphthalenes with a number of electrophiles, new “proton sponge” derivatives 7a − e,g,…”
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Carborane-Functionalized Polyaza Aromatic Ligands:  Synthesis, Crystal Structure, and a Copper(II) Complex by Prokhorov, Anton M, Kozhevnikov, Dmitry N, Rusinov, Vladimir L, Chupakhin, Oleg N, Glukhov, Ivan V, Antipin, Mikhail Yu, Kazheva, Olga N, Chekhlov, Anatolii N, Dyachenko, Oleg A

“…A consecutive aromatic nucleophilic substitutions of hydrogen in 1,2,4-triazine 4-oxides and an aza Diels−Alder reaction is a versatile route to…”
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