Synthesis and Structural Characterization of La4Mn3Ge5.2Si0.8O22, a New Compound with the Perrierite Structure

Taviot-Guého, Christine; Chopinet, Christelle; Palvadeau, P.; Léone, Philippe; Mozdzierz, N.; Rouxel, J.

doi:10.1006/jssc.1999.8247

Cited by 3 publications

(2 citation statements)

References 13 publications

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“…Traditionally the melting and growing processes in mirror furnaces are carried out heating the sample above 1200 K, depending on the oxides used in the synthesis. In our case, we wanted to bring down the temperature synthesis using a variant of the flux method reported by Taviot-Guého et al [1][2]. The flux method is used for oxides or solid solutions of oxides, which have very high melting point and/or decompose prior to melting.…”

Section: Methodsmentioning

confidence: 99%

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Micrometric single crystal germanates obtained using a double‐spherical mirror furnace

Juarez‐Arellano¹,

Rosales

Gamboa‐Espinosa

et al. 2004

Cryst. Res. Technol.

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Micro-crystals of two new compounds EuMnGe 2 O 7 and SmMnGe 2 O 7 were grown performing the flux method in a double-spherical mirror furnace. One valuable advantage of this system was that the heating profile could be modified easily adjusting lamp positions and orientation as well. The micrometric crystals were observed and analyzed for chemical composition by scanning electron microscopy and energy dispersive spectroscopy. This furnace is perfectly suitable to grow at low price, low temperature and short time new materials as a single crystal for basic research or to obtain raw material.

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Section: Methodsmentioning

confidence: 99%

“…For this reason, we constructed a doublespherical mirror furnace (DSMF), making a variation of the well know double-ellipsoid mirror furnace (DEMF). Our DSMF in combination with a variation of flux synthesis method reported by Taviot-Guéhe et al [1][2] are an adequate combination to grow micrometric single crystals of new compounds.…”

Section: Introductionmentioning

confidence: 99%

Micrometric single crystal germanates obtained using a double‐spherical mirror furnace

Juarez‐Arellano¹,

Rosales

Gamboa‐Espinosa

et al. 2004

Cryst. Res. Technol.

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Synthesis, Structural Characterization, and Thermal Stability of a New Layered Germanate Structure, Na₄Ge₁₆O₂₈(OH)₁₂

et al. 2004

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The new layered germanate structure Na4Ge16O28(OH)12 has been synthesized under hydrothermal conditions and characterized by single-crystal X-ray diffraction, FTIR, and SEM. The crystal lattice parameters are a = 7.3216(6) A, b = 14.3986(9) A, c = 7.7437(6) A, alpha = 90.0 degrees, beta = 100.179(7) degrees, gamma = 90.0 degrees, and V = 803.5(1) A3. The space group is C2/m with Z = 1. The germanium oxide sheets are connected non-covalently via electrostatic interactions with the sodium cations and H-bridging. At temperatures above 400 degrees C, the structure starts decomposing into sodium enneagermanate (Na4Ge9O20), germanium dioxide, and water as determined by powder X-ray diffraction, TGA, DTA, DSC, and GCMS.

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Triple Co^{II, III, IV} charge ordering and spin states in modular cobaltites: a systematization through experimental and virtual compounds

et al. 2014

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Synthesis and Structural Characterization of La4Mn3Ge5.2Si0.8O22, a New Compound with the Perrierite Structure

Cited by 3 publications

References 13 publications

Micrometric single crystal germanates obtained using a double‐spherical mirror furnace

Micrometric single crystal germanates obtained using a double‐spherical mirror furnace

Synthesis, Structural Characterization, and Thermal Stability of a New Layered Germanate Structure, Na₄Ge₁₆O₂₈(OH)₁₂

Triple Co^{II, III, IV} charge ordering and spin states in modular cobaltites: a systematization through experimental and virtual compounds

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Synthesis and Structural Characterization of La4Mn3Ge5.2Si0.8O22, a New Compound with the Perrierite Structure

Cited by 3 publications

References 13 publications

Micrometric single crystal germanates obtained using a double‐spherical mirror furnace

Micrometric single crystal germanates obtained using a double‐spherical mirror furnace

Synthesis, Structural Characterization, and Thermal Stability of a New Layered Germanate Structure, Na4Ge16O28(OH)12

Triple CoII, III, IV charge ordering and spin states in modular cobaltites: a systematization through experimental and virtual compounds

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Product

Resources

About

Synthesis, Structural Characterization, and Thermal Stability of a New Layered Germanate Structure, Na₄Ge₁₆O₂₈(OH)₁₂

Triple Co^{II, III, IV} charge ordering and spin states in modular cobaltites: a systematization through experimental and virtual compounds