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Lanthanides & Actinides
Lanthanide Carbides
Class III
  • Interstitial Carbides
  • Close-Packed M with C in Octahedral Interstices

    e.g. (Tb,Ho,Y)2Canti-CdCl2 structure

Class II
  • Occurrence with La - Ho
  • M3CC randomly distributed in 1/3 of Octahedral holes in ccp M
  • M2C3Pu2C3 structure ~ C2 groups
  • MC2CaC2 structure ~ C2 groups
  • Metallic lustre & conductivity not salt-like
  • Hydrolysis of (La,Ce)C2 at ambient temperature ethyne, C2H2

--Info & DownloadsBibliography  [textbook & online resources]

Source: Dr. S.J. Heyes; University of Oxford
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