Silicon tetraiodide

Silicon tetraiodide

Chembox new
ImageFile = Silicon_tetraiodide.png ImageSize = 150px
ImageFileL2 = Silicon-tetraiodide-3D-balls.png ImageFileR2 = Silicon-tetraiodide-3D-vdW.png IUPACName =
OtherNames = silicon tetraiodide Tetraiodosilane
Section1 = Chembox Identifiers
CASNo = 13465-84-4
PubChem =
SMILES =
Section2 = Chembox Properties
Formula = SiI4
MolarMass = 535.70 g/mol
Appearance = white powder
Density = 4.198 g/cm3, solid
MeltingPtC = 121
BoilingPtC = 288
SolubleOther = soluble
Solvent = organic solvents
Section3 = Chembox Structure
MolShape = tetrahedral
Section8 = Chembox Hazards
EUClass = not listed
MainHazards =
NFPA-H = 2
NFPA-R = 0
NFPA-F = 0
FlashPt =
RPhrases = R61-R24/25-R34-R42/43
SPhrases = S53-S26-S36/37/39-S45
Autoignition =

Silicon tetraiodide is the chemical compound with the formula SiI4. It is a tetrahedral molecule with Si-I bond lengths of 2.432(5) Å. [Kolonits, M.; Hargittai, M. "Molecular Structure of Silicon Tetraiodide" Structural Chemistry 1998, volume 9, pages 349-352. doi|10.1023/A:1022462926682]

SiI4 is a precursor to silicon amides of the formula Si(NR2)4 (R = alkyl). [Banerjee, C.; Wade, C. R.; Soulet, A.; Jursich, G.; McAndrew, J.; Belot, J. A. "Direct Syntheses and Complete Characterization of Halide-Free Tetrakis(dialkylamino)silanes" Inorganic Chemistry Communications 2006, volume 9, pages 761-763.] It has also been of interest in the manufacture and etching of silicon in microelectronics.

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