Neue Oxocadmate der Alkalimetalle: K6[CdO4],Rb6[CdO4], Rb2CdO2 und Rb2Cd2O3

  • Roland Baier
  • Erhard Seipp
  • Rudolf Hoppe
Anorganische Und Physikalische Chemie
Received:
Accepted:

New oxocadmates of the alkali metals: K6[CdO4], Rb6[CdO4], Rb2CdO2 and Rb2Cd2O3

Abstract

The crystal structure of K6[CdO4] and Rb2CdO2 has been determined from single crystal X-ray diffraction data and refined toR=0.058 (K6[CdO4]) andR=0.088 (Rb2CdO2). K6[CdO4] crystallizes hexagonal, space group P63mc with lattice constantsa=867.42 (6),c=665.5 (1) pm,c/a=0.767 andZ=2. It is isotypic with Na6[ZnO4]. Rb2CdO2 is orthorhombic, space group Pbcn witha=1045.0 (2),b=629.1 (1),c=618.3 (1) pm,Z=4, and crystallizes with the K2CdO2 structure type. The crystal structures can be deduced from the motif of a closest packed arrangement of O2− with hexagonal (K6[CdO4]) or cubic (Rb2CdO2) stacking. The tetrahedra occupied by Cd2+ are isolated (K6[CdO4]) or edge-shared (formation of infinite SiS2-like chains [CdO4/2]) (Rb2CdO2). The powder diffraction pattern of Rb6[CdO4] [a=906.6 (1),c=694.3 (1) pm] and Rb2Cd2O3 [a=642.6 (2),b=679.0 (1),c=667.9 (2) pm, β=115.2 (1)] confirm isotypie with K6[CdO4] and K2Cd2O3 respectively.

Keywords

Potassium and Rubidium Oxocadmates Crystal structure 
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Literatur

  1. [1]
    Scholder R (1969) Angew Chem 66: 461Google Scholar
  2. [2]
    von Schnering HG (1962) Z Anorg Allg Chem 314: 144Google Scholar
  3. [3]
    Vielhaber E, Hoppe R (1970) Rev Chim Miner 6: 169Google Scholar
  4. [4]
    Norrestam R (1967) Acta Chem Scand 21: 2871Google Scholar
  5. [5]
    Vielhaber E, Hoppe R (1972) Z Anorg Allg Chem 392: 209Google Scholar
  6. [6]
    Vielhaber E, Hoppe R (1968) Z Anorg Allg Chem 360: 7Google Scholar
  7. [7]
    Vielhapper E, Hoppe R (1971) Z Anorg Allg Chem 382: 270Google Scholar
  8. [8]
    Seipp E, Hoppe R (1985) Z Anorg Allg Chem 530: 117Google Scholar
  9. [9]
    Vielhaber E, Hoppe R (1965) Z Anorg Allg Chem 338: 209Google Scholar
  10. [10]
    Brachtel G, Hoppe R (1978) Z Anorg Allg Chem 441: 83Google Scholar
  11. [11]
    Brachtel G, Hoppe R (1978) Z Anorg Allg Chem 438: 97Google Scholar
  12. [12]
    DissertationBaier R (1987) GießenGoogle Scholar
  13. [13]
    DissertationSeipp E (1987) GießenGoogle Scholar
  14. [14]
    Kastner P, Hoppe R (1974) Z Anorg Allg Chem 409: 69Google Scholar
  15. [15]
    Baier R,Hoppe R, in VorbereitungGoogle Scholar
  16. [16]
    Klemm W, Helms A (1939) Z Anorg Allg Chem 242: 33Google Scholar
  17. [17]
    Hackspill L (1905) CR Acad Sci 141: 106;Hackspill L (1911) Bull Soc Chim Fr 9: 464Google Scholar
  18. [18]
    Simon A (1970) J Appl Crystallogr 3: 11Google Scholar
  19. [19]
    Soose J,Meyer G (1980) Programme zur Auswertung von Guinieraufnahmen. Staatsexamensarbeit J Soose, GießenGoogle Scholar
  20. [20]
    Yvon K, Jeitschko W, Parthé E (1977) J Appl Crystallogr 10: 73Google Scholar
  21. [21]
    Sheldrick GM (1976) SHELX 76. Program for crystal structure determination. University of CambridgeGoogle Scholar
  22. [22]
    Hoppe R (1980) Angew Chem 92: 106Google Scholar
  23. [23]
    Hoppe R (1979) Z Kristallogr 150: 23Google Scholar
  24. [24]
    Shannon RD,Gumerman PS (1976) Central Research Department E.I. DuPont De Nemours, Wilmington, Delaware, U.S.A.Google Scholar
  25. [25]
    Hoppe R (1966) Angew Chem 78: 52 (1966);Hoppe R (1966) Angew Chem Int Ed 5: 95;Hoppe R (1970) Angew Chem 82: 7 (1970);Hoppe R (1970) Angew Chem Int Ed 9: 25;Hoppe R (1970) Advan Fluorine Chem 6: 387;Hoppe R (1973) Izvj Jugoslav Centr Krist 8: 21;Hoppe R (1975) In: Crystal structure and chemical bonding in inorganic chemistry. Amsterdam, pp 127 ffGoogle Scholar
  26. [26]
    Darriet B, Devalette M, Roulleau F, Avallet M (1974) Acta Cryst B 30: 2667Google Scholar
  27. [27]
    Sommer H, Hoppe R (1978) Z Anorg Allg Chem 443: 201Google Scholar
  28. [28]
    Klepp K, Bronger W (1983) Z Naturforsch 38 b: 12Google Scholar
  29. [29]
    Klepp K, Bronger W (1983) Rev Chim Minér t 20: 682Google Scholar
  30. [30]
    Frit B, Holmberg B (1970) Acta Cryst B 26: 16Google Scholar
  31. [31]
    Schleid Th,Meyer G (1986) J Less Common Metals (im Druck)Google Scholar
  32. [32]
    Schleid Th,Meyer G, unveröffentlichtGoogle Scholar

Copyright information

© Springer-Verlag 1987

Authors and Affiliations

  • Roland Baier
    • 1
  • Erhard Seipp
    • 1
  • Rudolf Hoppe
    • 1
  1. 1.Institut für Anorganische und Analytische Chemie IJustus-Liebig-Universität GießenGießenBundesrepublik Deutschland

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