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Zirconium(IV) iodide : ウィキペディア英語版
Zirconium(IV) iodide

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Zirconium(IV) iodide is the chemical compound with the formula ZrI4. It is the most readily available iodide of zirconium. It is an orange-coloured solid that degrades in the presence of water.The compound was once prominent as an intermediate in the purification of zirconium metal.
==Structure==
Like most binary metal halides, it adopts a polymeric structure. As characterized by X-ray crystallography, the compound exists as a polymer consisting of octahedral Zr(IV) centers, each with a pair of terminal iodide ligands and a four doubly bridging iodide ligands. The Zr-I distances of 2.692 (terminal) and 3.030 Å〔B. Krebs, G. Henkel und M. Dartmann "Kristallstruktur von Zirkoniumtetrajodid ZrI4: ein neuer AB4-strukturtyp" Acta Cryst. 1979, volume B35, pp. 274-278. 〕〔Troyanov, S.I. "Crystal structure of gamma-ZrI4" Kristallografiya, 1986, volume 31, p446-449.〕

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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