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Darstellung und Kristallstruktur von MgNi<sub>2,5</sub>B<sub>3</sub> und Li<sub>1,2</sub>Ni<sub>2,5</sub>B<sub>2</sub> / Preparation and Crystal Structure of MgNi<sub>2,5</sub>B<sub>2</sub> and Li<sub>1,2</sub>Ni<sub>2,5</sub>B<sub>2</sub>
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1977
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Materials ScienceInorganic ChemistryCrystal StructureEngineeringX-ray MethodsMagnesium-based CompositeMgni 2Ni 2,5Main Group ChemistryChemistryInorganic MaterialCrystallographyCrystal Structure Design
The ternary borides MgNi 2,5 B 2 and Li 1,2 Ni 2,5 B 2 have been prepared and investigated by X-ray methods. They are isotypic and crystallize hexagonal in the space group P6 2 22—D 4 6 -with the following constants : MgNi 2 .5B 2 α = 4.887 ± 0.002 Å, c = 8.789 ± 0.004 Å; Li 1.2 Ni 2.5 B 2 a = 4.842 ± 0.002 Å, c = 8.664 ± 0.004 A. The structure contains boron-pairs and can be derived from the CeCo 3 B 2 -type of structure.