Tin(IV) bromide
| Tin(IV) bromide | ||
|---|---|---|
| IUPAC name tetrabromostannate | ||
| Other names tin tetrabromide, stannic bromide, bromostannic acid | ||
| Identifiers | ||
| CAS number | 7789-67-5  | |
| PubChem | 24616 | |
| ChemSpider | 23018  | |
| EC number | 232-184-5 | |
| Jmol-3D images | {{#if:Br[Sn](Br)(Br)Br|Image 1 | |
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| Properties | ||
| Molecular formula | SnBr4 | |
| Molar mass | 438.33 g/mol | |
| Appearance | colourless [1] | |
| Density | 3.340 g/cm3 (at 35 °C)[1] | |
| Melting point | 31 °C [1] | |
| Boiling point | 205 °C [1] | |
| Solubility in water | soluble | |
| (verify) (what is: /?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa) | ||
| Infobox references | ||
Tin(IV) bromide is the chemical compound SnBr4. It is a colourless low melting solid.[1] SnBr4 can be prepared by reaction of the elements at normal temperatures:[2]
- Sn + 2Br2 → SnBr4
In aqueous solution Sn(H2O)64+ is the principal ionic species amongst a range of 6 coordinate ions with from 0-6 bromide ligands (e.g. Sn(H2O)64+, SnBr(H2O)53+)[3] In basic solution the Sn(OH)62− ion is present.[3]
SnBr4 forms 1:1 and 1:2 complexes with ligands, e.g. with trimethylphosphine the following can be produced, SnBr4.P(CH3)3 and SnBr4.2P(CH3)3.[4]
SnBr4 crystallises in a monoclinic form with molecular SnBr4 units that have distorted tetrahedral geometry.[5]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 0080379419.
- ↑ Egon Wiberg, Arnold Frederick Holleman (2001) Inorganic Chemistry, Elsevier ISBN 0-12-352651-5
- ↑ 3.0 3.1 Sn NMR and vibrational spectroscopy, Taylor M. J. ; Coddington J. M., Polyhedron 1992, 11, 12, 1531-1544, doi:10.1016/S0277-5387(00)83148-4
- ↑ Preparation, Infrared and Raman Spectra, and Stereochemistries of Pentacoordinate Trimethylphosphine Complexes, MX4•P(CH3)3 and MX4•P(CD3)3 where M = Ge or Sn and X = Cl or Br, Frieson D. K., Ozin G. A., Can. J. Chem. 51(16): 2697–2709 (1973) doi:10.1139/v73-406
- ↑ Die Kristallstruktur von SnBr4 , Brand P., Sackmann H., Acta Crystallographica ( 1963), 16, 446-451, doi:10.1107/S0365110X63001250
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