Английская Википедия:Californium(II) iodide

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Шаблон:Chembox Californium(II) iodide is a binary inorganic compound of californium and iodine with the formula Шаблон:Chem.[1]

Synthesis

It can be produced by reducing californium triiodide with hydrogen in a quartz thin tube at 570 °C:[2]

Шаблон:Chem2

Physical properties

The compound forms a dark purple solid. At slightly higher temperatures, it melts and reacts with the silica in the thin tube, producing CfOI.Шаблон:Cn

Californium diiodide has two crystal structures, one is [[Cadmium(II) chloride|Шаблон:Chem]]-type crystal structure, stable at room temperature, with lattice parameters a = 743.4 ± 1.1 pm and α = 35.83 ± 0.07°; the other is metastable, of Шаблон:Chem-type with lattice parameters a = 455.7 ± 0.4 pm and c = 699.2 ± 0.6 pm.[3] Californium diiodide has an absorption band in the wavelength range from 300 to 1100 nm, which proves the existence of Cf(II).[4]

References

Шаблон:Reflist

Шаблон:Californium compounds Шаблон:Iodides Шаблон:Actinide halides

Шаблон:Inorganic-compound-stub