| Revision as of 16:46, 10 January 2012 editBeetstra (talk | contribs)Edit filter managers, Administrators172,031 edits Saving copy of the {{chembox}} taken from revid 412173137 of page Zirconium(IV)_iodide for the Chem/Drugbox validation project (updated: 'CASNo'). |
Latest revision as of 16:42, 6 November 2024 edit Smokefoot (talk | contribs)Autopatrolled, Extended confirmed users, Pending changes reviewers, Rollbackers74,495 edits |
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{{ambox | text = This page contains a copy of the infobox ({{tl|chembox}}) taken from revid of page ] with values updated to verified values.}} |
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| verifiedrevid = 402893752 |
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| verifiedrevid = 470637926 |
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| Name = Zirconium(IV) iodide |
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| Name = Zirconium(IV) iodide |
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| ImageFile1 = ZrI4Troyanov.tif |
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| ImageFile = ZrI4structure.jpg |
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| ImageSize1 = 275 |
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| ImageFile2 = ZrI4structure2.jpg |
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| ImageFile3 = ZrI4structure3.jpg |
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| ImageName = Zirconium(IV) iodide |
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| OtherNames = zirconium tetraiodide |
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| OtherNames = zirconium tetraiodide |
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| Section1 = {{Chembox Identifiers |
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|Section1={{Chembox Identifiers |
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| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} |
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| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} |
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| ChemSpiderID = 75903 |
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| ChemSpiderID = 75903 |
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| PubChem = 84133 |
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| EC_number = 237-780-9 |
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| UNII = H6NZC1810V |
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| InChI = 1/4HI.Zr/h4*1H;/q;;;;+4/p-4 |
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| InChI = 1/4HI.Zr/h4*1H;/q;;;;+4/p-4 |
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| InChIKey = XLMQAUWIRARSJG-XBHQNQODAZ |
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| InChIKey = XLMQAUWIRARSJG-XBHQNQODAZ |
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| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}} |
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| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}} |
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| StdInChIKey = XLMQAUWIRARSJG-UHFFFAOYSA-J |
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| StdInChIKey = XLMQAUWIRARSJG-UHFFFAOYSA-J |
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| CASNo_Ref = {{cascite|changed|??}} |
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| CASNo = <!-- blanked - oldvalue: 13986-26-0 --> |
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| CASNo = 13986-26-0 |
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}} |
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| Section2 = {{Chembox Properties |
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|Section2={{Chembox Properties |
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| Formula = ZrI<sub>4</sub> |
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| Formula = ZrI<sub>4</sub> |
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| MolarMass = 598.842 g/mol |
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| MolarMass = 598.842 g/mol |
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| Appearance = orange-yellow crystalline<br /> hygroscopic |
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| Appearance = orange-yellow crystalline<br /> hygroscopic |
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| Density = 4.580 g/cm<sup>3</sup>, solid |
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| Density = 4.914 g/cm<sup>3</sup> |
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| Solubility = soluble |
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| Solubility = |
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| MeltingPt = 499 °C<br />(triple point) |
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| MeltingPtC = 499<ref name=IS/> |
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| MeltingPt_notes = <br />(triple point) |
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| BoilingPt = 431 °C (sublimes) |
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| BoilingPtC = 431 |
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| BoilingPt_notes = (sublimes) |
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| Section3 = {{Chembox Structure |
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|Section3={{Chembox Structure |
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| CrystalStruct = ], ] |
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| CrystalStruct = ], ] |
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| SpaceGroup = P2/c, No. 13 |
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| SpaceGroup = P2/c, No. 13 |
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| Section7 = {{Chembox Hazards |
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| EUClass = not listed |
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| NFPA-H = 3 |
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| NFPA-H = 3 |
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| NFPA-R = 2 |
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| NFPA-R = 2 |
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| NFPA-F = 0 |
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| NFPA-F = 0 |
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| GHSPictograms = {{GHS05}} |
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| GHSSignalWord = Danger |
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| HPhrases = {{H-phrases|314}} |
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| PPhrases = {{P-phrases|260|264|280|301+330+331|303+361+353|304+340|305+351+338|310|321|363|405|501}} |
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|Section8={{Chembox Related |
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| OtherAnions = ]<br />]<br />] |
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| OtherCations = ]<br />] |
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'''Zirconium(IV) iodide''' is the ] with the formula ]]. 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. |
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==Structure== |
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Like most binary metal halides, zirconium(IV) iodide adopts a polymeric structure. As characterized by ], the compound consists of octahedral Zr(IV) centers interconnected by four doubly bridging iodide ligands. The Zr-I distances of 2.692 (terminal) and 3.030 Å<ref>{{cite journal|first1=B.|last1=Krebs|first2=G.|last2=Henkel|first3=M.|last3=Dartmann|title=Kristallstruktur von Zirkoniumtetrajodid ZrI<sub>4</sub>: ein neuer AB<sub>4</sub>-Strukturtyp|journal=Acta Crystallogr.|year=1979|volume=B35|issue=2|page=274-278|doi=10.1107/S0567740879003344}}</ref><ref>{{cite journal|first1=S. I.|last1=Troyanov|title=Crystal Structure of γ-ZrI<sub>4</sub>|journal=Kristallografiya|year=1986|volume=31|page=446-449}}</ref> |
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==Synthesis and reactions== |
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This compound can be prepared by heating zirconium metal and an excess of iodine. <ref name=IS>{{cite book|author=Eberly, K. C.|title=Inorganic Syntheses|chapter=Zirconium(IV) Iodide|year=1963|volume=7|pages=52–54|doi=10.1002/9780470132388.ch13|isbn=978-0-470-13238-8}}.</ref> The solid is purified by sublimation (400 °C, 10-4 mm Hg).<ref name=Corbett>{{cite journal |doi=10.1016/0022-4596(81)90092-X |title=Synthesis and Structure of an Infinite-Chain Form of ZrI<sub>2</sub> (α) |date=1981 |last1=Guthrie |first1=Dennis H. |last2=Corbett |first2=John D. |journal=Journal of Solid State Chemistry |volume=37 |issue=2 |pages=256–263 }}</ref> |
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:{{chem2|2 I2 + Zr -> ZrI4}} |
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] of zirconium(IV) iodide gas by contact with a hot wire was the first industrial process for the commercial production of pure ductile metallic zirconium. This ] was developed by ] and ] in 1925.<ref>{{cite journal | doi = 10.1002/zaac.19251480133 | title = Darstellung von reinem Titanium-, Zirkonium-, Hafnium- und Thoriummetall | first1 = A. E. | last1 = van Arkel | last2 = de Boer | first2 = J. H. | volume = 148 | issue = 1 | pages =345–350 | year = 1925 | journal = ] | language = German}}</ref> |
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Heating the tetraiodide with zirconium metal gives ]:<ref name=Corbett/> |
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:{{chem2|3 ZrI4 + 4 Zr -> 7 ZrI3}} |
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==References== |
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{{Reflist}} |
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{{Zirconium compounds}} |
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{{iodides}} |
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] |
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] |
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] |