Berkelium(III) fluoride explained

Berkelium(III) fluoride is a binary inorganic compound of berkelium and fluorine with the chemical formula .^{[1] [2] [3]}

Synthesis

The compound can be prepared by treating with a gaseous mixture of and HF at 600 °C.^[4]

Physical properties

Berkelium trifluoride forms a yellow-green solid with two structures.^[5] At low temperature, it is orthorhombic ( structure), with lattice parameters a = 670 pm, b = 709 pm, and c = 441 pm. At high temperature, it is trigonal ( structure), with lattice parameters a = 697 pm and c = 714 pm. The transition temperature of is between 350 and 600 °C.^{[6] [7]}

Chemical properties

Berkelium trifluoride is reduced by lithium to obtain metallic berkelium:

Notes and References

1. Peterson . J. R. . Cunningham . B. B. . Crystal structures and lattice parameters of the compounds of berkelium—IV berkelium trifluoride . . 1 August 1968 . 30 . 7 . 1775–1784 . 10.1016/0022-1902(68)80353-7 . 11 April 2023 . en . 0022-1902.
2. Book: Edelstein . Norman M. . Actinides in Perspective: Proceedings of the Actinides—1981 Conference, Pacific Grove, California, USA, 10-15 September 1981 . 11 September 2013 . . 978-1-4831-9051-8 . 334 . 11 April 2023 . en.
3. Web site: WebElements Periodic Table » Berkelium » berkelium trifluoride . webelements.com . 11 April 2023.
4. Book: Mi͡asoedov . Boris Fedorovich . Analytical Chemistry of Transplutonium Elements . 1974 . . 978-0-470-62715-0 . 97 . 11 April 2023 . en.
5. Book: Ahrland . S. . Bagnall . K. W. . Brown . D. . The Chemistry of the Actinides: Comprehensive Inorganic Chemistry . 7 June 2016 . . 978-1-4831-5934-8 . 161 . 11 April 2023 . en.
6. Peterson . J. R. . Fahey . J. A. . Baybarz . R. D. . The crystal structures and lattice parameters of berkelium metal . . 1 October 1971 . 33 . 10 . 3345–3351 . 10.1016/0022-1902(71)80656-5 . 11 April 2023 . en . 0022-1902.
7. Ensor . D. D. . Peterson . J. R. . Haire . R. G. . Young . J. P. . Absorption spectrophotometric study of berkelium(III) and (IV) fluorides in the solid state . . 1 January 1981 . 43 . 5 . 1001–1003 . 10.1016/0022-1902(81)80164-9 . 11 April 2023 . en . 0022-1902.