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Etude cristallographique et par resonance magnetique nucleaire de l'oxyfluorure ScOF

Authors
Journal
Materials Research Bulletin
0025-5408
Publisher
Elsevier
Publication Date
Volume
14
Issue
6
Identifiers
DOI: 10.1016/0025-5408(79)90141-7

Abstract

Abstract The structure and especially ordering between oxygen and fluorine has been determined by X-ray diffraction and NMR. ScOF has the baddeleyite type structure, where scandium is linked to three fluorines and to four oxygens. The cationic coordination of fluorine and oxygen is respectively triangular and tetrahedral. An ordered anionic distribution has been determined without any ambiguity by refining the structure for the various oxygen-fluorine configuration possibilities and by comparing calculated and observed second moments.

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