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Relevant bibliographies by topics / Tetrel–rich alkaline–earth metal compounds

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Journal articles
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Academic literature on the topic 'Tetrel–rich alkaline–earth metal compounds'

Author: Grafiati

Published: 4 June 2021

Last updated: 3 February 2022

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Journal articles on the topic "Tetrel–rich alkaline–earth metal compounds"

1

Reimann, Maximilian K., and Rainer Pöttgen. "Alkaline earth metal ordering in CaCu9Mg2 and SrCu9Mg2." Zeitschrift für Kristallographie - Crystalline Materials 235, no. 4-5 (2020): 137–41. http://dx.doi.org/10.1515/zkri-2020-0031.

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AbstractThe copper-rich intermetallic compounds CaCu9Mg2 and SrCu9Mg2 were synthesized by induction melting of the elements and subsequent annealing in a muffle furnace. CaCu9Mg2 and SrCu9Mg2 crystallize with the TbCu9Mg2 type structure, space group P 63/mmc, which is a ternary ordered variant of CeNi3. The polycrystalline samples were characterized through their X-ray powder patterns. The CaCu9Mg2 structure was refined from single-crystal X-ray diffraction data. a = 504.13(9), c = 1622.5(3) pm, wR2 = 0.0635, 302 F2 values and 19 variables. The two striking coordination polyhedra in the CaCu9M

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2

Karaghiosoff, Konstantin, Thomas M. Klapötke, and Carles Miró Sabaté. "Nitrogen-Rich Compounds in Pyrotechnics: Alkaline Earth Metal Salts of 5,5′-Hydrazine-1,2-diylbis(1H-tetrazole)." European Journal of Inorganic Chemistry 2009, no. 2 (2009): 238–50. http://dx.doi.org/10.1002/ejic.200800939.

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3

Getenet, Melese, Juan Manuel García-Ruiz, Cristóbal Verdugo-Escamilla, and Isabel Guerra-Tschuschke. "Mineral Vesicles and Chemical Gardens from Carbonate-Rich Alkaline Brines of Lake Magadi, Kenya." Crystals 10, no. 6 (2020): 467. http://dx.doi.org/10.3390/cryst10060467.

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Mineral vesicles and chemical gardens are self-organized biomimetic structures that form via abiotic mineral precipitation. These membranous structures are known to catalyze prebiotic reactions but the extreme conditions required for their synthesis has cast doubts on their formation in nature. Apart from model solutions, these structures have been shown to form in serpentinization-driven natural silica-rich water and by fluid-rock interaction of model alkaline solutions with granites. Here, for the first time, we demonstrate that self-assembled hollow mineral vesicles and gardens can be synth

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4

Safin, Damir A., Antoine P. Railliet, Koen Robeyns, et al. "Complexes and salts of the nitrogen-rich triazole–tetrazole hybrid ligand with alkali and alkaline earth metal cations: experimental and theoretical findings." New Journal of Chemistry 41, no. 14 (2017): 6210–18. http://dx.doi.org/10.1039/c7nj01391d.

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5

Ding, Lei, Claire Colin, Céline Darie, and Pierre Bordet. "Structure, magnetic and magnetoelectric properties of Ca(Co,Mn)Ge2O6pyroxenes." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C389. http://dx.doi.org/10.1107/s2053273314096107.

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Compounds belonging to the Pyroxene family are well known as rock-forming minerals, and have thus drawn substantial interest by mineralogists. In this family of general chemical formula AM(Si, Ge)2O6, A is usually an alkali metal monovalent cation or a divalent alkaline earth cation, and B may be a trivalent or divalent transition metal cation. Among pyroxene compounds, the monoclinic clinopyroxenes are characterized by isolated one-dimensional chains of MO6 octahedra linked by edge-sharing. Due to this specific arrangement, clinopyroxene compounds where M is a magnetic transition metal cation

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6

Bombicz, Petra, Ewald Sattler, Ilona Kovács, Alexander Rothenberger, and Alexander Okrut. "From Neutral to Ionic Species: Studies of Li...P(SiMe3)-PtBu2Complexes." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C640. http://dx.doi.org/10.1107/s2053273314093590.

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The alkali and alkaline earth phosphanides have already been intensively studied, nonetheless there are only a few reports on the alkali metal diphosphanides, on their structural properties and their synthetic use as building blocks for the synthesis of phosphorus-rich compounds and, in particular, transition- metal complexes. This study extends the so far small family of lithium diphosphanides with the series of Li(L)nP-(SiMe3)-PtBu2, where L = THF, n = 0–3; L = TMEDA or 12-crown-4, n = 2. The coordination numbers of the Li ions are in the range of two to eight in the investigated compounds.

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7

Kersting, Marcel, Samir F. Matar, Christian Schwickert, and Rainer Pöttgen. "Segregation of Calcium and Magnesium into Different Substructures. Ca4Ag0.948Mg and Other Compounds with Gd4RhIn-type Structure." Zeitschrift für Naturforschung B 67, no. 1 (2012): 61–69. http://dx.doi.org/10.1515/znb-2012-0111.

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The metal-rich compounds R4PdMg (R = Ca, Eu, Tb-Lu), R4AgMg (R = Ca, Yb), R4PtMg (R = Eu, Tb-Lu), and R4AuMg (R = Ca, Eu, Yb) were synthesized by induction melting of the elements in sealed tantalum tubes in a water-cooled sample chamber. All samples were characterized by powder X-ray diffraction. The structures of Ca4Ag0.948Mg and Yb4PdMg were refined on the basis of single-crystal X-ray diffractometer data: Gd4RhIn type, F 4̄3m, a = 1434.6(1) pm, wR2 = 0.0269, 523 F2 values, 18 variables for Yb4PdMg and a = 1485.78(7) pm, wR2 = 0.0188, 617 F2 values, 20 variables for Ca4Ag0.948Mg. For the fi

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Dissertations / Theses on the topic "Tetrel–rich alkaline–earth metal compounds"

1

Castillo, Rodrigo. "Synthesis of silicon- and germanium-rich phases at high-pressure conditions." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-207708.

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The main focus of the present work was the Ge-rich part of the binary Ba – Ge system, in which by inspecting the behavior of the clathrate-I Ba8Ge43 under pressure, several new phases were found. The new phases in this system have the following compositions: BaGe3 (with two modifications), BaGe5, BaGe5.5 and BaGe6, therefore they are quite close in composition range: 75% - ~85% at. Ge. Concerning the conditions required for the synthesis of each phase, several combinations of temperature and pressure were employed in order to find a stability range. It was possible to establish such a formati

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2

Siggelkow, Lisa [Verfasser], Thomas F. [Akademischer Betreuer] Fässler, and Wolfgang [Akademischer Betreuer] Domcke. "Synthesis, Characterization and Computational Studies of Binary and Ternary Intermetallic Compounds in the Systems Alkaline Earth Metal, Transition Metal, Tetrel Element / Lisa Siggelkow. Gutachter: Wolfgang Domcke. Betreuer: Thomas F. Fässler." München : Universitätsbibliothek der TU München, 2011. http://d-nb.info/1029350175/34.

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3

Meier, Katrin. "Hochdruck–Hochtemperatur–Synthese und Charakterisierung tetrelreicher Seltenerdmetallverbindungen und Darstellung von Ba8Ga16±xGe30∓x mittels Spark–Plasma–Sinterverfahren." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-105084.

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In dieser Dissertation wird die Darstellung tetrelreicher Seltenerdmetall–Verbindungen in den Systemen SE:Tt (SE = La, Nd, Sm, Gd, Tb, Ho, Lu; Tt = Si, Ge) und die Charakterisierung ihrer Eigenschaften beschrieben. Diese Verbindungen, welche mittels der Hochdruck–Hochtemperatur–Methode dargestellt wurden, zeigen neuartige Verknüpfungsmuster in der Tetrel–Partialstruktur. Neben der Charakterisierung der Verbindungen hinsichtlich der thermischen Stabilität und der physikalischen Eigenschaften bei Normaldruck wurde bei den Germanium–reichen Seltenerdmetall–Verbindungen eine Untersuchung der Verän

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4

Castillo, Rojas Rodrigo Esteban Antonio. "Synthesis of silicon- and germanium-rich phases at high-pressure conditions." Doctoral thesis, 2016. https://tud.qucosa.de/id/qucosa%3A29687.

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The main focus of the present work was the Ge-rich part of the binary Ba – Ge system, in which by inspecting the behavior of the clathrate-I Ba8Ge43 under pressure, several new phases were found. The new phases in this system have the following compositions: BaGe3 (with two modifications), BaGe5, BaGe5.5 and BaGe6, therefore they are quite close in composition range: 75% - ~85% at. Ge. Concerning the conditions required for the synthesis of each phase, several combinations of temperature and pressure were employed in order to find a stability range. It was possible to establish such a formati

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5

Meier, Katrin. "Hochdruck–Hochtemperatur–Synthese und Charakterisierung tetrelreicher Seltenerdmetallverbindungen und Darstellung von Ba8Ga16±xGe30∓x mittels Spark–Plasma–Sinterverfahren." Doctoral thesis, 2012. https://tud.qucosa.de/id/qucosa%3A26568.

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In dieser Dissertation wird die Darstellung tetrelreicher Seltenerdmetall–Verbindungen in den Systemen SE:Tt (SE = La, Nd, Sm, Gd, Tb, Ho, Lu; Tt = Si, Ge) und die Charakterisierung ihrer Eigenschaften beschrieben. Diese Verbindungen, welche mittels der Hochdruck–Hochtemperatur–Methode dargestellt wurden, zeigen neuartige Verknüpfungsmuster in der Tetrel–Partialstruktur. Neben der Charakterisierung der Verbindungen hinsichtlich der thermischen Stabilität und der physikalischen Eigenschaften bei Normaldruck wurde bei den Germanium–reichen Seltenerdmetall–Verbindungen eine Untersuchung der Verän

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