Redetermination of the structure of ALa2WO7 (A=Ba, Sr) with fluorite-like metal ordering

Fu, W.T.; IJdo, D.J.W.; Bontenbal, A.

doi:10.1016/j.jssc.2013.01.042

Cited by 11 publications

(4 citation statements)

References 6 publications

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“…In other articles, homological compounds belong to the monoclinic syngony [44,56,57]. Thus, studies of our samples prove that the compounds have a tendency to small distortions from cubic syngony.…”

Section: Vibrational Dielectric and Thermal Propertiesmentioning

confidence: 50%

Synthesis and structure investigation of ternary oxides based on molybdenum and lanthanum

Bissengaliyeva¹,

Bekturganov²,

Gogol³

et al. 2015

Materials Chemistry and Physics

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Section: Vibrational Dielectric and Thermal Propertiesmentioning

confidence: 50%

Synthesis and structure investigation of ternary oxides based on molybdenum and lanthanum

Bissengaliyeva¹,

Bekturganov²,

Gogol³

et al. 2015

Materials Chemistry and Physics

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“…Experimental X-ray diffraction patterns of the samples are presented in Figure and in Supporting Information, Figures S16–S20. X-ray phase analysis of the synthesized samples showed the presence of a predominant content of the phase, isostructural to BaLa 2 WO 7 . Admixtures in small quantity (approximately 1–2 vol %), which can be identified as BaWO 4 , were also found in some samples.…”

Section: Resultsmentioning

confidence: 93%

“…The properties of such compounds in addition to the chemical composition are also determined by the crystal structure. As a rule, these are highly symmetrical structures of pyrochlore, perovskite, or fluorite type. − The compounds based on BaLa 2 WO 7 , − doped with some lanthanides (Sm, Eu, Dy, Er, and Tm), − and their luminescent properties are also described in the literature. Nevertheless, the mentioned works present predominantly the results of studies of their luminescent properties, while there is no description of some other characteristics, including thermodynamic properties.…”

Section: Introductionmentioning

confidence: 99%

Structural Characteristics and Thermodynamic Functions of Compounds Ba(La_1–xPr_x)₂WO₇ (x from 0.005 to 0.05)

Bissengaliyeva¹,

Zhakupov

Knyazev

et al. 2019

J. Chem. Eng. Data

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A sol–gel method was used to synthesize barium, lanthanum, and tungsten-based samples doped with praseodymium Ba(La1–x Pr x )2WO7, where x = 0.005 ÷ 0.05. The morphological and elemental analyses of the samples were carried out by electron probe microanalysis. A full-profile refinement of the crystal structure of the compounds belonging to the monoclinic system with the space group P1121/b was carried out. Using the adiabatic calorimetry method, the heat capacity of the samples was measured and the thermodynamic functions in the range of 5–320 K were found. In the heat capacity of the samples below 15 K, anomalies were detected and the excessive and lattice heat capacities were determined.

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“…X-ray phase analysis of the synthesized samples carried out using Match! and the PDF-2 database showed that the composition of all the samples besides the main phase isostructural to the compound SrLa 2 WO 7 [14] (PDF-2 No.00-049-0353), includes a certain amount of another phase isostructural to the compound Sr 5 Re 2 O 12 [15] (PDF-2 No. 01-081-1481).…”

Section: Resultsmentioning

confidence: 99%

Heat Capacity and Thermodynamic Functions of Sr(La1-xLnx)2WO7 Compounds Doped with Samarium and Europium

Sadyrbekov

Bissengaliyeva²,

Gogol³

et al. 2021

Eurasian Chem. Tech. J.

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Samples based on strontium, lanthanum and tungsten with the general formula of Sr(La1-xLnx)2WO7 doped with samarium and europium at 1 and 3 at.% were synthesized by the solid-phase method at temperatures up to 1200 °C. The crystal structure of the samples was confirmed by X-ray powder diffraction. A full-profile refinement of the structure of compounds related to monoclinic syngony with the space group P1121/b was performed. The admixture phase is a compound of the Sr3Ln2W2O12 type with a trigonal system and space group R3-C. Based on the results of structure refinement, the ratio of the main compound and the admixture phase in the samples was determined to introduce corrections during measurements. Using adiabatic calorimetry we measured the heat capacity of the samples and found the thermodynamic functions of main compounds over the range of 5‒320 K. Anomalies were detected in the heat capacity of the samples below 15 K, and we calculated the excess and lattice heat capacity for these anomalies by means of linearization methods.

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Redetermination of the structure of ALa2WO7 (A=Ba, Sr) with fluorite-like metal ordering

Cited by 11 publications

References 6 publications

Synthesis and structure investigation of ternary oxides based on molybdenum and lanthanum

Synthesis and structure investigation of ternary oxides based on molybdenum and lanthanum

Structural Characteristics and Thermodynamic Functions of Compounds Ba(La_1–xPr_x)₂WO₇ (x from 0.005 to 0.05)

Heat Capacity and Thermodynamic Functions of Sr(La1-xLnx)2WO7 Compounds Doped with Samarium and Europium

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Redetermination of the structure of ALa2WO7 (A=Ba, Sr) with fluorite-like metal ordering

Cited by 11 publications

References 6 publications

Synthesis and structure investigation of ternary oxides based on molybdenum and lanthanum

Synthesis and structure investigation of ternary oxides based on molybdenum and lanthanum

Structural Characteristics and Thermodynamic Functions of Compounds Ba(La1–xPrx)2WO7 (x from 0.005 to 0.05)

Heat Capacity and Thermodynamic Functions of Sr(La1-xLnx)2WO7 Compounds Doped with Samarium and Europium

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Structural Characteristics and Thermodynamic Functions of Compounds Ba(La_1–xPr_x)₂WO₇ (x from 0.005 to 0.05)