Californium(IV) oxide

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Californium(IV) oxide
Names
Other names
Californium dioxide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.031.448 Edit this at Wikidata
EC Number
  • 234-606-3
  • InChI=1S/Cf.2O/q+4;2*-2
    Key: LCCVNIITEFXFMU-UHFFFAOYSA-N
  • [Cf+4].[O-2].[O-2]
Properties
CfO2
Molar mass 283 g·mol−1
Appearance black-brown solid
Density g/cm3
insoluble
Structure
cubic
Related compounds
Related compounds
 Berkelium dioxide, dicalifornium trioxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Californium(IV) oxide is a binary inorganic compound of californium and oxygen with the formula CfO
2.[1]

Synthesis

Californium dioxide is produced by oxidizing californium with molecular and atomic oxygen at high pressure.[2]

Physical properties

Californium(IV) oxide is a black-brown solid that has a cubic fluorite crystal structure with a lattice parameter, the distance between unit cells in the crystal, of 531.0 ± 0.2 pm. Crystals of californium(III) oxide normally have a body-centered cubic symmetry. They convert to a monoclinic form upon heating to about 1400 °C and melt at 1750 °C.[3]

References

  1. ^ "WebElements Periodic Table » Californium » californium dioxide". webelements.com. Retrieved 11 April 2023.
  2. ^ Haire, Richard G. (2006). "Californium". The Chemistry of the Actinide and Transactinide Elements. Springer Netherlands. pp. 1499–1576. doi:10.1007/1-4020-3598-5_11. ISBN 978-1-4020-3598-2. Retrieved 11 April 2023.
  3. ^ Baybarz, R. D.; Haire, R. G.; Fahey, J. A. (1 February 1972). "On the californium oxide system". Journal of Inorganic and Nuclear Chemistry. 34 (2): 557–565. doi:10.1016/0022-1902(72)80435-4. ISSN 0022-1902. Retrieved 11 April 2023.
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