Английская Википедия:Berkelium(III) fluoride

Материал из Онлайн справочника
Перейти к навигацииПерейти к поиску

Шаблон:Chembox Berkelium(III) fluoride is a binary inorganic compound of berkelium and fluorine with the chemical formula Шаблон:Chem.[1][2][3]

Synthesis

The compound can be prepared by treating Шаблон:Chem with a gaseous mixture of Шаблон:Chem 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 ([[yttrium trifluoride|Шаблон:Chem]] structure), with lattice parameters a = 670 pm, b = 709 pm, and c = 441 pm. At high temperature, it is trigonal ([[lanthanum trifluoride|Шаблон:Chem]] structure), with lattice parameters a = 697 pm and c = 714 pm. The transition temperature of Шаблон:Chem is between 350 and 600 °C.[6][7]

Chemical properties

Berkelium trifluoride is reduced by lithium to obtain metallic berkelium:

Шаблон:Chem2

References

Шаблон:Reflist

Шаблон:Berkelium compounds Шаблон:Fluorides Шаблон:Actinide halides