Affiliation:
1. Institut für Anorganische Chemie der Christian-Albrechts-Universität zu Kiel, Otto-Hahn-Platz 6–7 , D-24098 Kiel
Abstract
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 - D15
2h (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.
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24 articles.
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