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Ba(11)La(4)Br(34): a new barium lanthanum bromide.


ABSTRACT: The structure of the title compound, barium lanthanum bromide (11/4/34), can be derived from the fluorite structure. The asymmetric unit contains two Ba sites (one with site symmetry 4/m..), one La site (site symmetry 4..), one mixed-occupied Ba and La site (ratio 1:1, site symmetry m..) and six Br sites (one with site symmetry \=4.., one with 2.., one with m.., the latter being disordered over two positions with a 0.86:0.14 ratio). The fundamental building units of the structure are edge-sharing polyhedral clusters made up of Ba and La bromide clusters inter-connected to BaBr(8) square prisms and BaBr(10) groups.

SUBMITTER: Eagleman Y 

PROVIDER: S-EPMC3201288 | biostudies-literature | 2011 Oct

REPOSITORIES: biostudies-literature

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Ba(11)La(4)Br(34): a new barium lanthanum bromide.

Eagleman Yetta Y   Wu Guang G   Gundiah Gautam G   Bourret-Courchesne Edith E   Derenzo Stephen S  

Acta crystallographica. Section E, Structure reports online 20110920 Pt 10


The structure of the title compound, barium lanthanum bromide (11/4/34), can be derived from the fluorite structure. The asymmetric unit contains two Ba sites (one with site symmetry 4/m..), one La site (site symmetry 4..), one mixed-occupied Ba and La site (ratio 1:1, site symmetry m..) and six Br sites (one with site symmetry \=4.., one with 2.., one with m.., the latter being disordered over two positions with a 0.86:0.14 ratio). The fundamental building units of the structure are edge-sharin  ...[more]

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