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  • Electronic Resource  (4)
  • 1975-1979  (4)
Material
  • Electronic Resource  (4)
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Year
  • 1
    Electronic Resource
    Electronic Resource
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 33 (1977), S. 1696-1700 
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 31 (1975), S. 2281-2285 
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 31 (1975), S. 2285-2290 
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 445 (1978), S. 36-46 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Crystal Structure of Lead Monohydrogentriphosphate, Pb2HP3O10By heating of Pb2P4O12 · 2 H2O at 150°C crystalline Pb2HP3O10 is formed topotactically. In these crystals amorphous H3PO4 is included. The monoclinic crystals are fourfold twinned. Space group: Cm; unit cell: a = 6.93 ± 0.01, b = 14.34 ± 0.01, c = 5.97 ± 0.01 Å, β = 135.1 ± 0.1°. The crystal structure was determined by heavy-atom method and refined by least-squares calculations. The P3O105- anion consists of three PO4 tetrahedra connected by common oxygen atoms. The chain has mirror symmetry across a plane passing the middle P atom. Lead is coordinated by eight oxygen atoms. The polyhedra of Pb are connected parallel y and z by common edges. Six P3O105- chains are joined by one lead ion.
    Notes: Beim Erhitzen von Pb2P4O12 · 2 H2O auf 150°C bildet sich topotaktisch kristallines Pb2HP3O10. In diesen Kristallen ist amorphes H3PO4 eingeschlossen. Die monoklinen Kristalle des Pb2HP3O10 sind vierfach verzwillingt. Raumgruppe: Cm; Gitterkonstanten: a = 6,93 ± 0,01, b = 14,34 ± 0,01, c = 5,97 ± 0,01 Å, β = 135,1± 0,1°. Die Kristallstruktur wurde nach der Schweratommethode bestimmt und mit Least-squares Verfahren verfeinert. Das Triphosphatanion, P3O105- besteht aus drei über gemeinsame Sauerstoffatome verknüpften PO4-Tetraedern und ist spiegelsymmetrisch bezüglich einer durch das mittlere P-Atom verlaufenden Ebene. Blei ist gegenüber Sauerstoff achtfach koordiniert. Die Polyeder des Pb sind parallel y und z über gemeinsame Kanten verbunden. Ein Bleikation verknüpft sechs P3O105--Ketten miteinander.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
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