Tantalum(V) iodide explained

Tantalum(V) iodide is the inorganic compound with the formula Ta2I10. Its name comes from the compound's empirical formula, TaI5.[1] It is a diamagnetic, black solid that hydrolyses readily. The compound adopts an edge-shared bioctahedral structure, which means that two TaI5 units are joined by a pair of iodide bridges. There is no bond between the Ta centres.[2] Niobium(V) chloride, niobium(V) bromide, niobium(V) iodide, tantalum(V) chloride, and tantalum(V) bromide all share this structural motif.

Synthesis and structure

Tantalum pentaiodide forms from the reaction of tantalum pentoxide with aluminium triiodide:[3]

3 Ta2O5 + 10 AlI3 → 6 TaI5 + 5 Al2O3

References

  1. Greenwood, N. N.; & Earnshaw, A. (1997). Chemistry of the Elements (2nd Edn.), Oxford: Butterworth-Heinemann. .
  2. 10.1107/S0567740879009778. Die Kristallstruktur von Tantalpentajodid und ihre Fehlordnung. 1979. Müller. U.. Acta Crystallographica Section B: Structural Crystallography and Crystal Chemistry. 35. 11. 2502–2509. 1979AcCrB..35.2502M .
  3. Book: G. Braurer. Niobium(V) and Tantalum(V) Bromides. Handbook of Preparative Inorganic Chemistry, 2nd Ed. . G. Brauer. Academic Press. 1963. NY, NY. 1. 1311.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Tantalum(V) iodide".

Except where otherwise indicated, Everything.Explained.Today is © Copyright 2009-2024, A B Cryer, All Rights Reserved. Cookie policy.