α-Na6Pb3(PS4)4, a noncentrosymmetric thiophosphate with the novel, saucer-shaped [Pb3(PS4)4]6- cluster, and its metastable, 3-dimensionally polymerized allotrope β-Na6Pb3(PS4)4

J. A. Aitken, M. G. Kanatzidis

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Abstract

Discovered in a molten polythiophosphate salt reaction, the compound α-Na6Pb3(PS4)4 is a salt containing the molecular cluster [Pb3(PS4)4].6- The C3v symmetry and the saucer shape of this cluster enable columnar stacking along the c-axis. Interestingly, fast cooling of a melt of the stoichiometric composition "Na6Pb3(PS4)4" results in the putative high-pressure from β-Na6Pb3(PS4)4 in which the molecular clusters have essentially polymerized through intercluster Pb-S bonding. β-Na6Pb3(PS4)4 converts slowly (depolymerizes) to the α-form upon annealing below the melting point.

Original languageEnglish
Pages (from-to)2938-2939
Number of pages2
JournalInorganic Chemistry
Volume40
Issue number13
DOIs
Publication statusPublished - Jun 18 2001

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ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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