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Crystal structure of lutetium aluminate (LUAM), Lu4Al2O9.

ABSTRACT: The crystal structure of the title compound containing lutetium, the last element in the lanthanide series, was determined using a single crystal prepared by heating a pressed pellet of a 2:1 molar ratio mixture of Lu2O3 and Al2O3 powders in an Ar atmosphere at 2173?K for 4?h. Lu4Al2O9 is isostructural with Eu4Al2O9 and composed of Al2O7 di-tetra-hedra and Lu-centered six- and sevenfold oxygen polyhedra. The unit-cell volume, 787.3?(3)?Å3, is the smallest among the volumes of the rare-earth (RE) aluminates, RE 4Al2O9. The crystal studied was refined as a two-component pseudo-merohedric twin.

SUBMITTER: Simura R

PROVIDER: S-EPMC7199276 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature

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Crystal structure of lutetium aluminate (LUAM), Lu4Al2O9.

Simura Rayko R Yamane Hisanori H

Acta crystallographica. Section E, Crystallographic communications 20200430 Pt 5

The crystal structure of the title compound containing lutetium, the last element in the lanthanide series, was determined using a single crystal prepared by heating a pressed pellet of a 2:1 molar ratio mixture of Lu2O3 and Al2O3 powders in an Ar atmosphere at 2173 K for 4 h. Lu4Al2O9 is isostructural with Eu4Al2O9 and composed of Al2O7 di-tetra-hedra and Lu-center ...[more]

PMID: 32431946

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