Unknown

Dataset Information

0

Penta-potassium praseodymium(III) dilithium deca-fluoride, K(5)PrLi(2)F(10).


ABSTRACT: The crystal structure of K(5)PrLi(2)F(10) is isotypic with those of other K(5)RELi(2)F(10) compounds (RE = Eu, Nd). The lanthanoid ions are isolated in K(5)PrLi(2)F(10), with a mean separation between the Pr ions of 7.356?Å. It classifies this crystal as a so-called self-activated material containing lanthanoid ions within the matrix. Except for two K(+) and two F(-) ions, all atoms are located on sites with m symmetry. In the structure, distorted PrF(8) dodeca-hedra and two different LiF(4) tetra-hedra share F atoms, forming sheets parallel to (100). The isolated PrF(8) dodeca-hedra exhibit a mean Pr-F distance of 2.406?Å. The K(+) cations are located within and between these sheets, leading to highly irregular KF(x) polyhedra with coordination numbers of eight and nine for the alkali metal cations.

SUBMITTER: Gagor A 

PROVIDER: S-EPMC2971201 | biostudies-literature | 2009 Oct

REPOSITORIES: biostudies-literature

altmetric image

Publications

Penta-potassium praseodymium(III) dilithium deca-fluoride, K(5)PrLi(2)F(10).

Gagor Anna A  

Acta crystallographica. Section E, Structure reports online 20091028 Pt 11


The crystal structure of K(5)PrLi(2)F(10) is isotypic with those of other K(5)RELi(2)F(10) compounds (RE = Eu, Nd). The lanthanoid ions are isolated in K(5)PrLi(2)F(10), with a mean separation between the Pr ions of 7.356 Å. It classifies this crystal as a so-called self-activated material containing lanthanoid ions within the matrix. Except for two K(+) and two F(-) ions, all atoms are located on sites with m symmetry. In the structure, distorted PrF(8) dodeca-hedra and two different LiF(4) tet  ...[more]

Similar Datasets

| S-EPMC2971037 | biostudies-literature
| S-EPMC2961491 | biostudies-literature
| S-EPMC3629467 | biostudies-other
| S-EPMC3201280 | biostudies-literature
| S-EPMC3238874 | biostudies-other
| S-EPMC3884265 | biostudies-literature
| S-EPMC3213441 | biostudies-literature
| S-EPMC3200918 | biostudies-literature
| S-EPMC3246912 | biostudies-literature
| S-EPMC3152053 | biostudies-literature