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The Matlockite-Type praseodymium(III) Oxide Bromide PrOBr

The Matlockite-Type praseodymium(III) Oxide Bromide PrOBr

Pia Talmon-Gros, Christian M Schurz, Thomas Schleid

Acta Crystallogr Sect E Struct Rep Online. 2011 Dec 1;67(Pt 12):i74.

PMID: 22199472

Abstract:

The crystal structure of the praseodymium(III) oxide bromide, PrOBr, can be best described with layers of agglomerated square anti-prisms [PrO(4)Br(4)](9-). These slabs are stacked along the c axis and linked via two different secondary contacts between Pr(3+) and Br(-). The Pr(3+) cations occupy the Wyckoff site 2c with 4mm symmetry and carry four O(2-) anions as well as four primary Br(-) anions, yielding a coordination number of 8. While the Br(-) anions exhibit the same site symmetry as the Pr(3+) cations, the oxide anions are located at the Wyckoff position 2a with site symmetry [Formula: see text]m2 and have four Pr(3+) cations as neighbours, defining a tetra-hedron.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP12036327	Praseodymium(III) oxide		12036-32-7	Price

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