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The crystal structure of KScP2O7.

ABSTRACT: Single crystals of KScP2O7, potassium scandium diphosphate, were grown in a borate flux. The title compound crystallizes isotypically with KAlP2O7 in space-group type P21/c, Z = 4. The main building block is an {ScP2O11}9- unit, forming layers parallel to (001). These layers are stacked along [001] via common corners of octa-hedral and tetra-hedral units to span up large hepta-gonal cavities that host the potassium cations with a coordination number of 10. The P-O-P bridging angle increases with increasing size of the octa-hedrally coordinated M III cation, as do the K-O distances within a series of KM IIIP2O7 compounds (M III = Al to Y with ionic radii r = 0.538 to 0.90?Å).

SUBMITTER: Redhammer GJ

PROVIDER: S-EPMC7472755 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature

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The crystal structure of KScP2O7.

Redhammer Günther J GJ Tippelt Gerold G

Acta crystallographica. Section E, Crystallographic communications 20200804 Pt 9

Single crystals of KScP2O7, potassium scandium diphosphate, were grown in a borate flux. The title compound crystallizes isotypically with KAlP2O7 in space-group type P21/c, Z = 4. The main building block is an {ScP2O11}9- unit, forming layers parallel to (001). These layers are stacked along [001] via common corners of octa-hedral and tetra-hedral units to span up large hepta-gona ...[more]

PMID: 32939291

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