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Tin(IV) iodide

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Tin(IV) iodide
Photograph of a sample of tin tetraiodide
Photograph of a sample of tin tetraiodide
Ball-and-stick model of the unit cell of tin tetraiodide
Ball-and-stick model of the unit cell of tin tetraiodide
Structure and dimensions of the tin(IV) iodide molecule
Structure and dimensions of the tin(IV) iodide molecule
Ball-and-stick model 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
3D model (JSmol)
ECHA InfoCard 100.029.281 Edit this at Wikidata
EC Number
  • 232-208-4
  • InChI=1S/4HI.Sn/h4*1H;/q;;;;+4/p-4
    Key: QPBYLOWPSRZOFX-UHFFFAOYSA-J
  • [Sn](I)(I)(I)I
Properties
SnI4
Molar mass 626.328 g mol−1
Appearance red-orange solid
Density 4.56 g cm−3
Melting point 144.5 °C (292.1 °F; 417.6 K)
Boiling point 348.5 °C (659.3 °F; 621.6 K)
2.106
Structure
Cubic, cP40
P-43m, No. 205
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Tin(IV) iodide, also known as stannic iodide is the chemical compound with the formula SnI4. This tetrahedral molecule crystallises as a bright orange solid that dissolves readily in nonpolar solvents such as benzene.[1]

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

Sn + 2 I2 → SnI4

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

SnI4 + 2 I− → [SnI6]2−

References

  1. ^ Chemistry : Periodic Table : tin : compound data [tin (IV) iodide]
  2. ^ a b Moeller, T., Edwards, D. C., Brandt, R. L. and Kleinberg, J. (1953). "Tin(IV) Iodide (Stannic Iodide)". Inorganic Syntheses. Inorganic Syntheses. 4: 119–121. doi:10.1002/9780470132357.ch40. ISBN 978-0-470-13235-7.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  3. ^ Hickling, G. G. (1990). "Gravimetric analysis: The synthesis of tin iodide". J. Chem. Educ. 67 (8): 702–703. doi:10.1021/ed067p702.


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