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BY-NC-ND 3.0 license Open Access Published by De Gruyter June 2, 2014

Synthese und Kristallstruklur von Triblei-Diphosphato-Borat-Phosphat, eine Verbindung mit einem 1[(PO4)2BPO4]6–-Anion / Synthesis and Crystal Structure of Trilead-Diphosphato-Borate-Phosphate, a Compound with a 1[(PO4)2BPO4]6–-Anion

C. H. Park and K. Bluhm

Single crystals of Pb3[(PO4)2BPO4] were obtained by melting B2O3, P2O3 and PbO at 960 °C. The structure is related to the Ba3[(PO4)2BPO4] type. X-ray investigations on single crystals led to the space group Pbca - D152h (Nr. 61) with a = 694.6(1), b = 1419.9(3), c = 2111.6(2) pm, Z = 8 . Boron and phosphorus are tetrahedrally coordinated by oxygen. The polyhedra form one-dimensional infinite helices that contain two additional PO4 groups connected to the BO4-unit. Lead is eightfold coordinated by oxygen. The relation to the crystal structure of Ba3[(PO4)2BPO4] is discussed.

Received: 1995-5-4
Published Online: 2014-6-2
Published in Print: 1995-11-1

© 1946 – 2014: Verlag der Zeitschrift für Naturforschung

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