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Rb[B2P2O8(OH)] und Cs[B2P2O8(OH )]: Die ersten Borophosphate mit dreidimensional vernetzter Anionenteilstruktur /Rb[B2P2O8(OH)] and Cs[B2P2O8(OH )]: The First Borophosphates with a Threedimensional Anionic Tetrahedral Structure

  • Cornelia Häuf and Rüdiger Kniep

The isotypic borophosphates Rb[B2P2O8(OH)] and Cs[B2P2O8(OH)] were grown under hydrothermal conditions. The crystal structures were solved by single crystal methods (Rb[B2P2O8(OH)]/ Cs[B2P2O8(OH)]: monoclinic, P21/c, a = 676.2(3)/682.7(3), b = 1217.3(5)/ 1236.8(5), c = 885.0(4)/900.6(5) pm, β = 97.3(1)/ 98.1(1)°. Z = 4). The structures contain a complex framework of three-, four-, six-, nine- and twelvemembered rings of tetrahedra. Along [100] the twelve-membered rings are stacked to give wide channels which contain the Rb+/Cs+-ions in an icosahedral coordination.

Received: 1997-7-28
Published Online: 2014-6-2
Published in Print: 1997-11-1

© 1946 – 2014: Verlag der Zeitschrift für Naturforschung

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