Hydrothermal Synthesis of K2PdSe10. Coexistence of Two Large Interpenetrating Three-Dimensional Frameworks of [Pd(Se4)2]2- and [Pd(Se6)2]2-

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The hydrothermal reaction of PdCl2 with K2Se4 in the presence of different KOH and water in the 1:5:5:40 ratio produced K2[PdSe10] (I), the first metal polychalcogenide compound containing two interpenetrating three-dimensional frameworks. The black rectangular chunky crystals of I are insoluble in water and most organic solvents. They crystallize in the orthorhombic space group I212121 (no. 24) with a = 15.872 (9) Å, b = 15.922 (9) Å, c = 12.885 (8) Å, V = 3256 (6) Å3. I is composed of two independent interpenetrating 3D diamond-like frameworks of [Pd(Se4)2]2- and [Pd(Se6)2]2-. Each framework contains large tunnels running parallel to the a-and b-crystallographic axes. The coordination geometry around Pd is square-planar. The average Pd-Se and Se-Se distances are 2.462 (5) and 2.35 (2) Å, respectively. The closest distances between K+ ions and Se atoms are in the range of 3.27 (2) and 3.75 (2) Å.

Original languageEnglish
Pages (from-to)4878-4883
Number of pages6
JournalJournal of the American Chemical Society
Issue number12
Publication statusPublished - Jun 1 1992

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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