“Titanium(III) iodide”的意思、由来-开放百科全书

词条

Titanium(III) iodide

释义

Preparation and structure
References

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Titanium(III) iodide is an inorganic compound with the formula TiI₃. It is a dark violet solid that is insoluble in solvents, except upon decomposition.

Preparation and structure

Titanium(III) iodide can be prepared by reaction of titanium with iodine:^[1]

It can also be obtained by reduction of TiI4, e.g., with aluminium .^[2]

In terms of its structure, the compound exists as a polymer of face-sharing octahedra. Above 323 K, the Ti---Ti spacing are equal, but below that temperature, the material undergoes a phase transition. In the low temperature phase, the Ti---Ti contacts are alternating short and long. The low temperature structure is similar to that of molybdenum tribromide.^[3]

References

1. ^F. Hein, S. Herzog "Molybdenum(III) Bromide" in Handbook of Preparative Inorganic Chemistry, 2nd Ed. Edited by G. Brauer, Academic Press, 1963, NY. Vol. 1. p. 1407.
2. ^{{citation|surname1=Catherine E. Housecroft, A. G. Sharpe|title=Inorganic Chemistry|publisher=Pearson Education|pages=601|isbn=0-13039913-2|date= 2005|language=German|url=https://books.google.gr/books?id=_1gFM51qpAMC&hl=el&source=gbs_navlinks_s}}
3. ^¹Joachim Angelkort, Andreas Schoenleber, Sander van Smaalen: Low- and high-temperature crystal structures of. In: Journal of Solid State Chemistry. 182, 2009, S. 525–531, {{DOI|10.1016/j.jssc.2008.11.028}}.

2 : Titanium compounds|Iodides

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