Zirconium(IV) iodide

Zirconium(IV) iodide  File:ZrI4Troyanov.tif

Names
Other names

zirconium tetraiodide

Identifiers

CAS Number

* 13986-26-0 N

3D model (JSmol)

* Interactive image

ChemSpider |

* 75903 Y

EC Number |

* 237-780-9

PubChem CID

* 84133

UNII |

* H6NZC1810V

InChI

* InChI=1S/4HI.Zr/h4*1H;/q;;;;+4/p-4 Y

Key: XLMQAUWIRARSJG-UHFFFAOYSA-J Y

* InChI=1/4HI.Zr/h4*1H;/q;;;;+4/p-4

Key: XLMQAUWIRARSJG-XBHQNQODAZ

SMILES

* [Zr+4].[I-].[I-].[I-].[I-]

Properties

Chemical formula

| ZrI4
Molar mass | 598.842 g/mol
Appearance  | orange-yellow crystalline
hygroscopic
Density | 4.914 g/cm3
Melting point |  499[1] °C (930 °F; 772 K)
(triple point)
Boiling point |  431 °C (808 °F; 704 K) (sublimes)
Structure

Crystal structure

| Monoclinic, mP30

Space group

| P2/c, No. 13
Hazards
GHS pictograms |
GHS Signal word | Danger

GHS hazard statements

| H314

GHS precautionary statements

| P260, P264, P280, P301+330+331, P303+361+353, P304+340, P305+351+338, P310, P321, P363, P405, P501
NFPA 704 (fire diamond)  |

Related compounds

Other anions

| Zirconium(IV) fluoride
Zirconium(IV) chloride
Zirconium(IV) bromide

Other cations

| Titanium tetraiodide
Hafnium tetraiodide

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

N verify (what is YN ?)
Infobox references

Tracking categories (test):

* SizeSet

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, zirconium(IV) iodide adopts a polymeric structure. As characterized by X-ray crystallography, 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[2][3]

## Synthesis and reactions

This compound is volatile, subliming as intact tetrahedral ZrI4 molecules. It is prepared by the direct reaction of powdered zirconium metal and iodine.[1]

Pyrolysis of zirconium(IV) iodide gas by contact of hot wire was the first industrial process for the commercial production of pure ductile metallic zirconium. This crystal bar process was developed by Anton Eduard van Arkel and Jan Hendrik de Boer in 1925.[4]

## References

1. ↑ 1.0 1.1 Eberly, K. C. (1963). "Zirconium(IV) Iodide". Inorganic Syntheses. Inorganic Syntheses. 7. pp. 52–54. doi:10.1002/9780470132388.ch13. ISBN 9780470132388. .
2. ↑ Krebs, B.; Henkel, G.; Dartmann, M. (1979). "Kristallstruktur von Zirkoniumtetrajodid ZrI4: ein neuer AB4-Strukturtyp". Acta Crystallogr. B35 (2): 274-278. doi:10.1107/S0567740879003344.
3. ↑ Troyanov, S. I. (1986). "Crystal Structure of γ-ZrI4". Kristallografiya 31: 446-449.
4. ↑ van Arkel, A. E.; de Boer, J. H. (1925). "Darstellung von reinem Titanium-, Zirkonium-, Hafnium- und Thoriummetall" (in German). Zeitschrift für anorganische und allgemeine Chemie 148 (1): 345–350. doi:10.1002/zaac.19251480133.

* v
* t
* e

Zirconium compounds

Zr(II)|

* ZrB2
* ZrH2
* ZrSi2

Zr(III)|

* ZrN
* ZrCl3

Zr(IV)|

* ZrBr4
* ZrC
* ZrCl4
* ZrF4
* ZrI4
* Zr(NO3)4
* ZrOCl2
* Zr(OH)4
* ZrO2
* ZrS2
* Zr(SO4)2
* ZrSiO4
* Zr(WO4)2

| Organozirconium(IV)|

* Zr(acac)4

|

HI |  |  |  | He

|
|
|
|

LiI | BeI2 | BI3 | CI4 | NI3 | I2O4,
I2O5,
I4O9 | IF,
IF3,
IF5,
IF7 | Ne
NaI | MgI2 | AlI3 | SiI4 | PI3,
P2I4 | S  | ICl,
ICl3 | Ar
KI | CaI2 | Sc  | TiI4 | VI3 | CrI3 | MnI2 | FeI2 | CoI2 | NiI2 | CuI | ZnI2 | Ga2I6 | GeI2,
GeI4 | AsI3 | Se  | IBr | Kr
RbI | SrI2 | YI3 | ZrI4 | NbI5 | Mo  | Tc  | Ru  | Rh  | Pd  | AgI | CdI2 | InI3 | SnI4,
SnI2 | SbI3 | TeI4 | I  | Xe
CsI | BaI2 |  | HfI4 | TaI5 | W  | Re  | Os  | Ir  | Pt  | AuI | Hg2I2,
HgI2 | TlI | PbI2 | BiI3 | Po  | AtI | Rn
Fr  | RaI2 |  | Rf  | Db  | Sg  | Bh  | Hs  | Mt  | Ds  | Rg  | Cn  | Nh  | Fl  | Mc  | Lv  | Ts  | Og
| ↓  |  |
La  | Ce  | Pr  | Nd  | Pm  | SmI2 | Eu  | Gd  | TbI3 | Dy  | Ho  | Er  | Tm  | Yb  | Lu
Ac  | ThI4 | Pa  | UI3,
UI4 | Np  | Pu  | Am  | Cm  | Bk  | Cf  | EsI3 | Fm  | Md  | No  | Lr

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*[CID]: Compound ID
*[H314]: Causes severe skin burns and eye damage
*[P260]: Do not breathe dust/fume/gas/mist/vapours/spray
*[P264]: Wash … thoroughly after handling
*[P280]: Wear protective gloves/protective clothing/eye protection/face protection
*[P301+330+331]: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting
*[P303+361+353]: IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower
*[P304+340]: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
*[P305+351+338]: IF IN EYES: Rinse continuously with water for several minutes. Remove contact lenses if present and easy to do – continue rinsing
*[P310]: Immediately call a POISON CENTER or doctor/physician
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