Limits...
Rietveld refinement of langbeinite-type K(2)YHf(PO(4))(3).

Ogorodnyk IV, Zatovsky IV, Slobodyanik NS - Acta Crystallogr Sect E Struct Rep Online (2009)

Bottom Line: Potassium yttrium hafnium tris-(orthophosphate) belongs to the langbeinite-family and is built up from [MO(6)] octa-hedra [in which the positions of the two independent M sites are mutually occupied by Y and Hf in a 0.605 (10):0.395 (10) ratio] and [PO(4)] tetra-hedra connected via vertices into a three-dimensional framework.This framework is penetrated by large closed cavities in which the two independent K atoms are located; one of the K atoms is nine-coordinated and the other is 12-coordinated by surrounding O atoms.The K, Y and Hf atoms lie on threefold rotation axes, whereas the P and O atoms are located in general positions.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Inorganic Chemistry, Taras Shevchenko National University, 64 Volodymyrska Str., 01601 Kyiv, Ukraine.

ABSTRACT
Potassium yttrium hafnium tris-(orthophosphate) belongs to the langbeinite-family and is built up from [MO(6)] octa-hedra [in which the positions of the two independent M sites are mutually occupied by Y and Hf in a 0.605 (10):0.395 (10) ratio] and [PO(4)] tetra-hedra connected via vertices into a three-dimensional framework. This framework is penetrated by large closed cavities in which the two independent K atoms are located; one of the K atoms is nine-coordinated and the other is 12-coordinated by surrounding O atoms. The K, Y and Hf atoms lie on threefold rotation axes, whereas the P and O atoms are located in general positions.

No MeSH data available.


Related in: MedlinePlus

A view of the asymmetric unit of K2YHf(PO4)3. Displacement ellipsoids are drawn at the 50% probability level.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC2977454&req=5

Fap1: A view of the asymmetric unit of K2YHf(PO4)3. Displacement ellipsoids are drawn at the 50% probability level.


Rietveld refinement of langbeinite-type K(2)YHf(PO(4))(3).

Ogorodnyk IV, Zatovsky IV, Slobodyanik NS - Acta Crystallogr Sect E Struct Rep Online (2009)

A view of the asymmetric unit of K2YHf(PO4)3. Displacement ellipsoids are drawn at the 50% probability level.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2977454&req=5

Fap1: A view of the asymmetric unit of K2YHf(PO4)3. Displacement ellipsoids are drawn at the 50% probability level.
Bottom Line: Potassium yttrium hafnium tris-(orthophosphate) belongs to the langbeinite-family and is built up from [MO(6)] octa-hedra [in which the positions of the two independent M sites are mutually occupied by Y and Hf in a 0.605 (10):0.395 (10) ratio] and [PO(4)] tetra-hedra connected via vertices into a three-dimensional framework.This framework is penetrated by large closed cavities in which the two independent K atoms are located; one of the K atoms is nine-coordinated and the other is 12-coordinated by surrounding O atoms.The K, Y and Hf atoms lie on threefold rotation axes, whereas the P and O atoms are located in general positions.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Inorganic Chemistry, Taras Shevchenko National University, 64 Volodymyrska Str., 01601 Kyiv, Ukraine.

ABSTRACT
Potassium yttrium hafnium tris-(orthophosphate) belongs to the langbeinite-family and is built up from [MO(6)] octa-hedra [in which the positions of the two independent M sites are mutually occupied by Y and Hf in a 0.605 (10):0.395 (10) ratio] and [PO(4)] tetra-hedra connected via vertices into a three-dimensional framework. This framework is penetrated by large closed cavities in which the two independent K atoms are located; one of the K atoms is nine-coordinated and the other is 12-coordinated by surrounding O atoms. The K, Y and Hf atoms lie on threefold rotation axes, whereas the P and O atoms are located in general positions.

No MeSH data available.


Related in: MedlinePlus