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1999 (1)
1Author    Insan Boya, Rüdiger KniepaRequires cookie*
 Title    K[B6PO10(OH)4]: Ein Borophosphat mit gestreckten Bändern aus Tetraeder-Vierer-Ringen und offen-zyklischen Verzweigungen über planare B203(0 H)2-Gruppen K[B6PO 10(OH)4]: A Borophosphate Containing Rods of Tetrahedral Vierer-Rings with Additional Open-Loop Branchings via Planar B20 3(0 H )2 Groups  
 Abstract    K[B6PO|0(OH)4] was prepared under mild hydrothermal conditions (T = 170 °C) from a concentrated solution of K2B40 7 ■ 4H20 , KH2P 04, and HC1 (18%). The crystal structure of the tetragonal compound was solved by X-ray single crystal methods (space group P 4/ncc, No 130): a = 1209.66(13), c = 759.05(7) pm; Z = 4. The anionic partial structure consists of infinite rods of ^ [B6POl0(OH)4]~ which are built of vierer-rings of alternating B 0 4 and P04 tetrahedra with additional open-loop branchings via planar B20 3(0 H)2 groups at the B 0 4 units by sharing common oxygen functions. Potassium (K+) is located within structural channels running along [001]; the eightfold coordination by oxygen (OH-groups) results in a (slightly) distorted tetragonal antiprism. 
  Reference    Z. Naturforsch. 54b, 895—898 (1999); eingegangen am 9. April 1999 
  Published    1999 
  Keywords    Boron, Phosphorus, Tetrahedral Rods, Planar Borate Groups 
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 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-0895.pdf 
 Identifier    ZNB-1999-54b-0895 
 Volume    54