Tin(IV) iodide

Tin(IV) iodide
Photograph of a sample of tin tetraiodide	Ball-and-stick model of the unit cell of tin tetraiodide
Structure and dimensions of the tin(IV) iodide molecule	Ball-and-stick model of the tin(IV) iodide molecule
Names
	IUPAC name tin(IV) iodide
	Other names tin tetraiodide; stannic iodide
Identifiers
CAS Number	7790-47-8 ;
3D model (JSmol)	Interactive image;
ChemSpider	23033 ;
ECHA InfoCard	100.029.281
EC Number	232-208-4;
PubChem CID	11490544;
UNII	8H688BW69X ;
CompTox Dashboard (EPA)	DTXSID6064876 ;
	InChI InChI=1S/4HI.Sn/h41H;/q;;;;+4/p-4 Key: QPBYLOWPSRZOFX-UHFFFAOYSA-J ; InChI=1/4HI.Sn/h41H;/q;;;;+4/p-4 Key: QPBYLOWPSRZOFX-XBHQNQODAO;
	SMILES (I)(I)(I)I;
Properties
Chemical formula	SnI4
Molar mass	626.328 g mol−1
Appearance	red-orange solid
Density	4.56 g cm−3
Melting point	143 °C (289 °F; 416 K)
Boiling point	348.5 °C (659.3 °F; 621.6 K)
Refractive index (nD)	2.106
Structure
Crystal structure	Cubic, cP40
Space group	Pa-3 No. 205
Related compounds
Other anions	Tin(IV) fluoride ; Tin(IV) chloride ; Tin(IV) bromide
Other cations	Carbon tetraiodide ; Silicon tetraiodide ; Germanium tetraiodide
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). verify (what is ?) Infobox references

Tin(IV) iodide, also known as stannic iodide, is the chemical compound with the formula SnI₄. This tetrahedral molecule crystallizes as a bright orange solid that dissolves readily in nonpolar solvents such as benzene.^[1]

Preparation

The compound is usually prepared by the reaction of iodine and tin:^[2]

Sn + 2I₂ → SnI₄

Chemical properties

The compound hydrolyses in water.^[3] In aqueous hydroiodic acid, it reacts to form a rare example of a hexaiodometallate:^[2]

SnI₄ + 2 I⁻ → ²⁻

Physical properties

Tin(IV) iodide is an orange solid under standard conditions.^[3] It has a cubic crystal structure with the space group Pa3 (space group no. 205), the lattice parameter a = 1226 pm and eight formula units per unit cell.^[4] This corresponds approximately to a cubic close packing of iodine atoms in which 1/8 of all tetrahedral gaps are occupied by tin atoms. This leads to discrete tetrahedral SnI₄ molecules.^[5]

References

Zdroj:https://en.wikipedia.org?pojem=Tin(IV)_iodide
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Tin compounds
Sn(II)

SnBr₂

SnCl₂

Sn(C₅H₅)₂

SnF₂

SnI₂

SnC₂O₄

SnO

Sn(OH)₂

C
₁₈H
₃₆SnO
₂

SnSO₄

Sn(CH₃COO)₂

SnSe

SnTe

SnS

SnP₃

Sn(IV)

SnBr₄

SnCl₄

SnF₄

SnH₄

SnI₄

SnO₂

SnS₂

Sn(CH₃COO)₄

Sn(NO₃)₄

Sn(IO₃)₄

[2] v

[3] t

[4] e

[5] SnBr₂

[6] SnCl₂

[7] Sn(C₅H₅)₂

[8] SnF₂

[9] SnI₂

[10] SnC₂O₄

[11] SnO

[12] Sn(OH)₂

[13] C
₁₈H
₃₆SnO
₂

[14] SnSO₄

[15] Sn(CH₃COO)₂

[16] SnSe

[17] SnTe

[18] SnS

[19] SnP₃

[20] SnBr₄

[21] SnCl₄

[22] SnF₄

[23] SnH₄

[24] SnI₄

[25] SnO₂

[26] SnS₂

[27] Sn(CH₃COO)₄

[28] Sn(NO₃)₄

[29] Sn(IO₃)₄

[1]

[2]

[3]

[4]

[5]

Preparation

Chemical properties

Physical properties

See also

References