Search Results - "Laptash, Natalia M"

Synthesis, Structural, Magnetic, and Electronic Properties of Cubic CsMnMoO3F3 Oxyfluoride by Atuchin, Victor V, Molokeev, Maxim S, Yurkin, Gleb Yu, Gavrilova, Tatyana A, Kesler, Valery G, Laptash, Natalia M, Flerov, Igor N, Patrin, Gennadii S

“…A powder sample of CsMnMoO3F3 oxyfluoride has been prepared by solid state synthesis. The pyrochlore-related crystal structure of CsMnMoO3F3 has been refined…”
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Mixed-valence hydrated iron fluoridotitanate: Crystal structure and thermal behavior by Udovenko, Anatoly A., Goreshnik, Evgeny A., Merkulov, Evgeny B., Laptash, Natalia M.

“…•High quality mixed-valence single crystals of hydrated iron hexafluoridotitanate (HITF) were obtained.•Crystal structures of RT and LT modifications of HITF…”
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Calorimetric, dilatometric and DTA under pressure studies of the phase transitions in elpasolite (NH4)2KZrF7 by Gorev, Mikhail V., Kartashev, Andrey V., Bogdanov, Evgeniy V., Flerov, Igor N., Laptash, Natalia M.

“…[Display omitted] •Heat capacity and thermal expansion at phase transitions in (NH4)2KZrF7 are studied.•Initial cubic and distorted tetragonal phases show high…”
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Ammonium tantalum oxide fluorides: new features of dynamic disorder by Udovenko, Anatoly A., Laptash, Natalia M.

“…Ammonium fluoride salts of seven‐ and eight‐coordinated tantalum were grown in the form of well shaped single crystals at different pH of solutions, and their…”
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Investigation of thermal properties and structure of complex fluoride K3ZrF7 by Gorev, Mikhail V., Molokeev, Maxim S., Kartashev, Andrey V., Pogoreltsev, Evgeniy I., Mel’nikova, Svetlana V., Laptash, Natalia M., Flerov, Igor N.

“…[Display omitted] •Structural change, heat capacity and thermal expansion of fluoride K3ZrF7 are studied.•Structural distortions are mainly associated with the…”
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Phase transition in RbCdZrF7: Structure and thermal properties by Bogdanov, Evgeniy V., Molokeev, Maxim S., Gorev, Mikhail V., Kartashev, Andrey V., Laptash, Natalia M., Flerov, Igor N.

“…[Display omitted] •Second order phase transition Cmcm↔ P21/m at 200 K is far from the tricritical point.•All structural elements are ordered in both…”
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Optical and calorimetric studies of K2TaF7 by Mel’nikova, Svetlana V., Bogdanov, Evgeniy V., Molokeev, Maxim S., Laptash, Natalia M., Flerov, Igor N.

“…The phase transition Pnma ↔ P21/c in K2TaF7 is a strong first-order transformation of the “proper” ferroelastic origin. A huge angle of rotation of the optical…”
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Fluxional seven‐coordinated fluorido‐ and oxofluoridotantalates by Udovenko, Anatoly A., Slobodyuk, Arseny B., Emelina, Tatiana B., Laptash, Natalia M.

“…Seven‐coordinated (NH4)2TaF7, Rb2TaF7 and Rb3TaOF6 were synthesized in single‐crystal form and their structures were determined. A monocapped trigonal prism…”
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Dinuclear oxofluorometallates as a new structural type of d(0) transition metal oxofluoride compound by Udovenko, Anatoly A, Laptash, Natalia M

“…Five isomorphous d(0) transition metal oxofluoride compounds A(3)[M(2)O(x)F(11-x)]·(AF)(0.333) (A = K, Rb, NH(4); M = Nb, Mo, W; x = 2, 4) have been…”
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Bonding and Structure of Oxofluoroniobate-Based Glasses by Laptash, Natalia M, Maslennikova, Irina G, Slobodyuk, Arseny B, Kavun, Valery Ya, Goncharuk, Vladimir K

“…Glasses based on the oxofluoroniobate anion have been characterized by vibrational and solid-state NMR spectroscopy. The mechanism of glass formation in the…”
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Influence of the Molecular Groups Ordering on Structural Phase Transitions in (NH4)2WO2F4 Crystal by Krylov, Alexander S, Goryainov, Sergey V, Laptash, Natalia M, Vtyurin, Alexander N, Melnikova, Svetlana V, Krylova, Svetlana N

“…Phase transitions of the (NH4)2WO2F4 crystal were studied by Raman spectroscopy in the range from 10 to 350 K. The mechanism of two phase transitions at T 1 =…”
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Orientational disorder and phase transitions in ammonium oxofluorovanadates, (NH4)3VOF5 and (NH4)3VO2F4 by Udovenko, Anatoly A., Pogoreltsev, Evgeny I., Marchenko, Yuri V., Laptash, Natalia M.

“…Single crystals of (NH4)3VOF5 and (NH4)3VO2F4 were obtained from aqueous fluoride solutions and phase transitions in these compounds were investigated using…”
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Dinuclear oxofluorometallates as a new structural type of d0 transition metal oxofluoride compound by Udovenko, Anatoly A., Laptash, Natalia M.

“…Five isomorphous d0 transition metal oxofluoride compounds A3[M2OxF11 − x]·(AF)0.333 (A = K, Rb, NH4; M = Nb, Mo, W; x = 2, 4) have been synthesized from acid…”
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Dynamic orientational disorder in crystals of fluoroelpasolites, structural refinement of (NH4)3AlF6, (NH4)3TiOF5 and Rb2KTiOF5 by Udovenko, Anatoly A., Laptash, Natalia M.

“…Room‐temperature crystal structures of triammonium hexafluoroaluminate, (NH4)3AlF6 (I), and triammonium oxopentafluorotitanate, (NH4)3TiOF5 (II), were refined,…”
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Orientational disorder and phase transitions in crystals of dioxofluoromolybdate, (NH4)2MoO2F4 by Udovenko, Anatoly A., Vasiliev, Alexander D., Laptash, Natalia M.

“…Dioxotetrafluoromolybdate, (NH4)2MoO2F4, was synthesized in a single‐crystal form and its structures [(I) at 297 K and (II) at 223 K] were determined by X‐ray…”
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Orientational disorder and phase transitions in crystals of (NH4)2NbOF5 by Udovenko, Anatoly A., Laptash, Natalia M.

“…Ammonium oxopentafluoroniobate, (NH4)2NbOF5, was synthesized in a single‐crystal form and the structures of its different phases were determined by X‐ray…”
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Disorder in crystals of dioxofluorotungstates, (NH4)2WO2F4 and Rb2WO2F4 by Udovenko, Anatoly A., Laptash, Natalia M.

“…Dioxotetrafluorotungstates (NH4)2WO2F4 [(I) at 297 K and (II) at 133 K] and Rb2WO2F4 (III) were synthesized in a single‐crystal form and their structures were…”
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Intermetallic charge transfer in MTiF6·6H2O (M = Mn, Fe, Co, and Ni): A study by X-ray photoelectron spectroscopy by Korochentsev, Vladimir V., Laptash, Natalia M.

“…The X-ray photoelectron spectra (XPS) of a series of hydrated fluoridotitanates MTiF6∙6H2O (M = Mg, Mn, Fe, Co, Ni) were measured for the first time. The…”
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Phase transformation in some hexahydrated metal(II) fluorogermanates and fluorotitanates: Optical and differential scanning calorimetry studies by Mel'nikova, Svetlana V., Laptash, Natalia M., Pogoreltsev, Evgeniy I.

“…•Single crystals of hydrated fluorides CoGeF6∙6H2O, FeGeF6∙6H2O, CoTiF6∙6H2O, ZnTiF6∙6H2O were grown.•Twinning, birefringence and heat capacities indicate a…”
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Effect of the size of the central atom on the stability of crystalline phases in solid solutions (NH4)3TixSn1-xF7 by Bogdanov, Evgeniy V., Pogoreltsev, Evgeniy I., Gorev, Mikhail V., Mel'nikova, Svetlana V., Мolokeev, Maxim S., Laptash, Natalia M., Flerov, Igor N.

“…The effect of a change in internal pressure as a result of partial substitution of the central atom on the realization and stability of the initial and…”
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