Antimony triiodide

Antimony triiodide  |  |

|

Names
IUPAC name

Antimony triiodide, Antimony(III) iodide

Systematic IUPAC name

Triiodostibane

Identifiers

CAS Number

* 7790-44-5 Y

3D model (JSmol)

* Interactive image
* Interactive image

ChemSpider |

* 23032 Y

ECHA InfoCard | 100.029.278
EC Number |

* 232-205-8

PubChem CID

* 24630

UNII |

* 52ZE5Y9Y82 Y

CompTox Dashboard (EPA)

* DTXSID1064875

InChI

* InChI=1S/3HI.Sb/h3*1H;/q;;;+3/p-3 Y

Key: KWQLUUQBTAXYCB-UHFFFAOYSA-K Y

* InChI=1/3HI.Sb.3H/h3*1H;;;;/q;;;+3;;;/p-3/r3HI.H3Sb/h3*1H;1H3/q;;;+3/p-3

Key: JYIUOADDPFDEAV-GODZFDHEAT

* InChI=1/3HI.Sb/h3*1H;/q;;;+3/p-3

Key: KWQLUUQBTAXYCB-DFZHHIFOAA

SMILES

* [SbH3+3].[I-].[I-].[I-]

* I[Sb](I)I

Properties

Chemical formula

| I3Sb
Molar mass | 502.473 g·mol−1
Appearance  | red crystals
Density | 4.921 g/cm3
Melting point | 170.5 °C (338.9 °F; 443.6 K)
Boiling point | 401.6 °C (754.9 °F; 674.8 K)

Solubility in water

| soluble, partially hydrolyses
Solubility | soluble in benzene, alcohol, acetone, CS2, HCl, KI, SnCl4, C2H7N
,HI,alkali metal triiodides

insoluble in CHCl3, CCl4[1]

Solubility in diiodomethane | 10.15% v/v (12 °C)[2]

Magnetic susceptibility (χ)

| -147.0·10−6 cm3/mol
Structure

Crystal structure

| Rhombohedral, hR24,

Space group

| R-3, No. 148

Dipole moment

| 1.58 D
Thermochemistry

Heat capacity (C)

| 81.6 J/mol·K (gas)[1]

Std enthalpy of
formation (ΔfH⦵298)

| -100.4 kJ/mol[1]
Hazards
GHS labelling:[4]

Pictograms

Signal word

| Warning

Hazard statements

| H302, H332, H411

Precautionary statements

| P273
NIOSH (US health exposure limits):

PEL (Permissible)

| TWA 0.5 mg/m3 (as Sb)[3]

REL (Recommended)

| TWA 0.5 mg/m3 (as Sb)[3]

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

Chemical compound

Antimony triiodide crystalline Antimony triiodide milled

Antimony triiodide is the chemical compound with the formula SbI3. This ruby-red solid is the only characterized "binary" iodide of antimony, i.e. the sole compound isolated with the formula SbxIy. It contains antimony in its +3 oxidation state. Like many iodides of the heavier main group elements, its structure depends on the phase. Gaseous SbI3 is a molecular, pyramidal species as anticipated by VSEPR theory. In the solid state, however, the Sb center is surrounded by an octahedron of six iodide ligands, three of which are closer and three more distant.[5] For the related compound BiI3, all six Bi—I distances are equal.[6]

## Production

[edit]

It may be formed by the reaction of antimony with elemental iodine, or the reaction of antimony trioxide with hydroiodic acid.

Alternatively, it may be prepared by the interaction of antimony and iodine in boiling benzene or tetrachloroethane.

## Uses

[edit]

SbI3 has been used as a dopant in the preparation of thermoelectric materials.[7]

## References

[edit]

1. ^ a b c "Antimony triiodide".
2. ^ Seidell, Atherton; Linke, William F. (1952). Solubilities of Inorganic and Organic Compounds. Van Nostrand. Retrieved 18 May 2017.
3. ^ a b NIOSH Pocket Guide to Chemical Hazards. "#0036". National Institute for Occupational Safety and Health (NIOSH).
4. ^ Sigma-Aldrich Co., Antimony(III) iodide. Retrieved on 2014-05-29.
5. ^ Hsueh, H.C.; Chen, R.K.; Vass, H.; Clark, S.J.; Ackland, G.J.; Poon, W.C.K.; Crain, J. (1998). "Compression mechanisms in quasimolecular XI3 (X = As, Sb, Bi) solids" (PDF). Physical Review B. 58 (22): 14812–14822\. Bibcode:1998PhRvB..5814812H. doi:10.1103/PhysRevB.58.14812. hdl:20.500.11820/6b565e3e-900c-465c-a037-6929e8a7c18b. S2CID 121883973.14812-14822&rft.date=1998&rft_id=info:hdl/20.500.11820/6b565e3e-900c-465c-a037-6929e8a7c18b&rft_id=https://api.semanticscholar.org/CorpusID:121883973#id-name=S2CID&rft_id=info:doi/10.1103/PhysRevB.58.14812&rft_id=info:bibcode/1998PhRvB..5814812H&rft.au=Hsueh,+H.C.&rft.au=Chen,+R.K.&rft.au=Vass,+H.&rft.au=Clark,+S.J.&rft.au=Ackland,+G.J.&rft.au=Poon,+W.C.K.&rft.au=Crain,+J.&rft_id=https://www.pure.ed.ac.uk/ws/files/21840692/PhysRevB.58.14812.pdf&rfr_id=info:sid/en.wikipedia.org:Antimony+triiodide" class="Z3988">
6. ^ Holleman, A. F.; Wiberg, E. "Inorganic Chemistry" Academic Press: San Diego, 2001. ISBN 0-12-352651-5.
7. ^ D.-Y. Chung; T. Hogan; P. Brazis; M. Rocci-Lane; C. Kannewurf; M. Bastea; C. Uher; M. G. Kanatzidis (2000). "CsBi4Te6: A High-Performance Thermoelectric Material for Low-Temperature Applications". Science. 287 (5455): 1024–7\. Bibcode:2000Sci...287.1024C. doi:10.1126/science.287.5455.1024. PMID 10669411.1024-7&rft.date=2000&rft_id=info:pmid/10669411&rft_id=info:doi/10.1126/science.287.5455.1024&rft_id=info:bibcode/2000Sci...287.1024C&rft.au=D.-Y.+Chung&rft.au=T.+Hogan&rft.au=P.+Brazis&rft.au=M.+Rocci-Lane&rft.au=C.+Kannewurf&rft.au=M.+Bastea&rft.au=C.+Uher&rft.au=M.+G.+Kanatzidis&rfr_id=info:sid/en.wikipedia.org:Antimony+triiodide" class="Z3988">

## External links

[edit]

Wikimedia Commons has media related to Antimony triiodide.

* v
* t
* e

Salts and covalent derivatives of the iodide ion

| HI
+H |  |  |  | He

|
|
|
|

LiI | BeI2 | BI3
+BO3 | CI4
+C | NI3
NH4I
+N | I2O4
I2O5
I2O6
I4O9 | IF
IF3
IF5
IF7 | Ne
NaI | MgI2 | AlI
AlI3 | SiI4 | PI3
P2I4

PI5 | S2I2 | ICl
ICl3 | Ar
KI | CaI2 |  | ScI3 | TiI2
TiI3
TiI4 | VI2
VI3 | CrI2
CrI3
CrI4 | MnI2 | FeI2
FeI3 | CoI2 | NiI2
-Ni | CuI | ZnI2 | GaI
GaI3 | GeI2
GeI4
+Ge | AsI3
As2I4
+As | Se  | IBr
IBr3 | Kr
RbI
RbI3 | SrI2 |  | YI3 | ZrI2
ZrI3
ZrI4 | NbI4
NbI5 | MoI2
MoI3 | TcI3 | RuI3 | RhI3 | PdI2 | AgI | CdI2 | InI
InI3 | SnI2
SnI4 | SbI3
+Sb | TeI4
+Te | I−

3 | Xe
CsI
CsI3 | BaI2 |  | LuI3 | HfI3
HfI4 | TaI4
TaI5 | WI2
WI3
WI4 | ReI3
ReI
4 | OsI
OsI2
OsI3 | IrI3
IrI
4 | PtI2
PtI4 | AuI
AuI3 | Hg2I2
HgI2 | TlI
TlI3 | PbI2 | BiI3 | PoI2
PoI4 | AtI | Rn
Fr  | RaI2 |  | Lr  | Rf  | Db  | Sg  | Bh  | Hs  | Mt  | Ds  | Rg  | Cn  | Nh  | Fl  | Mc  | Lv  | Ts  | Og
| ↓  |  |
| LaI2
LaI3 | CeI2
CeI3 | PrI2
PrI3 | NdI2
NdI3 | PmI3 | SmI2
SmI3 | EuI2
EuI3 | GdI2
GdI3 | TbI3 | DyI2
DyI
3 | HoI3 | ErI3 | TmI2
TmI3 | YbI2
YbI3
AcI3 | ThI2
ThI3
ThI4 | PaI4
PaI5 | UI3
UI4 | NpI3 | PuI3 | AmI2
AmI3 | CmI3 | BkI
3 | CfI

CfI
3 | EsI2
EsI3 | Fm  | Md  | No

* v
* t
* e

Antimony compounds

Antimonides|

* AlSb
* Bi1-xSbx
* DySb
* GaSb
* HoSb
* HoSb2
* InSb
* PrSb
* SmSb
* YSb
* ZnSb

Sb(III)|

* SbBr3
* Sb(C2H3O2)3
* SbCl3
* SbF3
* Sb4O4(OH)2(NO3)2
* SbH3
* SbI3
* SbN
* Sb2O3
* Sb2S3
* Sb2(SO4)3
* Sb2Se3
* Sb2Te3

| Organoantimony(III) compounds|

* Sb(CH3)3
* Sb(C6H5)3

|

Sb(III,V)|

* Sb2O4

Sb(V)|

* SbCl5
* SbF5
* Sb2O5
* Sb2S5

| Organoantimony(V) compounds|

* Sb(CH3)5
* Sb(C6H5)5

|

*[CID]: Compound ID
*[EPA]: U.S. Environmental Protection Agency
*[H302]: H302: Harmful if swallowed
*[H332]: H332: Harmful if inhaled
*[H411]: H411: Toxic to aquatic life with long lasting effects
*[P273]: P273: Avoid release to the environment.
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template