Glass Physics and Chemistry

, Volume 35, Issue 4, pp 411–415 | Cite as

Synthesis and crystal structure of a new oxohalide CdPb2O2Cl2

  • O. I. Siidra
  • S. V. Krivovichev
  • C. Teske
  • W. Depmeier


A new compound, CdPb2O2Cl2, is synthesized by the method of solid-phase reactions. The compound has monoclinic symmetry, space group C2/m, a = 12.392(8) Å, b = 3.8040(14) Å, c = 7.658(5) Å, β = 122.64(5)°, and V = 304.0(3) Å3. The structure contains one symmetrically independent position of the Pb2+ cation coordinated by three O2− anions (Pb2+-O2− = 2.29–2.34 Å) and five Cl anions (Pb2+-Cl = 3.35–3.57 Å). The Cd2+ cation has a symmetric coordination with the formation of two bonds Cd-O = 2.15 Å and four bonds Cd-Cl = 2.73 Å. The oxygen atom is tetrahedrally coordinated by three Pb2+ cations and one Cd2+ cation, which leads to the formation of oxo-centered heterometallic OPb3Cd tetrahedra. The tetrahedra are linked together into chains through common Pb atoms and into layered complexes due to sharing of the equatorial Cd atoms. The chlorine atoms are located above the cavities of the oxo-centered layer.


Chlorine Atom Crystal Chemistry Glass Physic Lead Oxide Glass Phys 
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Copyright information

© Pleiades Publishing, Ltd. 2009

Authors and Affiliations

  • O. I. Siidra
    • 1
  • S. V. Krivovichev
    • 1
    • 2
  • C. Teske
    • 3
  • W. Depmeier
    • 4
  1. 1.Faculty of GeologySt. Petersburg State UniversitySt. PetersburgRussia
  2. 2.Grebenshchikov Institute of Silicate ChemistryRussian Academy of SciencesSt. PetersburgRussia
  3. 3.Institute of Inorganic ChemistryUniversity of KielKielGermany
  4. 4.Institute of GeologyUniversity of KielKielGermany

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