Silicon tetraiodide

Silicon tetraiodide
Names
Other names
silicon tetraiodide
Tetraiodosilane
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.033.355 Edit this at Wikidata
EC Number
  • 236-706-2
  • InChI=1S/I4Si/c1-5(2,3)4 checkY
    Key: CFTHARXEQHJSEH-UHFFFAOYSA-N checkY
  • InChI=1/I4Si/c1-5(2,3)4
    Key: CFTHARXEQHJSEH-UHFFFAOYAL
  • I[Si](I)(I)I
Properties
SiI4
Molar mass 535.7034 g/mol
Appearance white powder
Density 4.198 g/cm3
Melting point 120.5 °C (248.9 °F; 393.6 K)
Boiling point 287.4 °C (549.3 °F; 560.5 K)
reacts
Solubility in organic solvents soluble
Structure
tetrahedral
Hazards
GHS labelling:
GHS05: CorrosiveGHS06: ToxicGHS07: Exclamation markGHS08: Health hazard
Danger
H301, H311, H314, H317, H334, H360
P201, P202, P260, P261, P264, P270, P272, P280, P281, P285, P301+P310, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P304+P341, P305+P351+P338, P308+P313, P310, P312, P321, P322, P330, P333+P313, P342+P311, P361, P363, P405, P501
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
2
0
0
Related compounds
Other anions
Silicon tetrafluoride
Silicon tetrachloride
Silicon tetrabromide
Other cations
Carbon tetraiodide
Germanium tetraiodide
Tin(IV) iodide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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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.[1]

SiI4 is a precursor to silicon amides of the formula Si(NR2)4 (R = alkyl).[2] It has also been of interest in the manufacture and etching of silicon in microelectronics.

  1. ^ Kolonits, Maria; Hargittai, Magdolna (1998). "Molecular Structure of Silicon Tetraiodide". Structural Chemistry. 9 (5): 349–352. doi:10.1023/A:1022462926682. S2CID 96658381.
  2. ^ Banerjee, Chiranjib; Wade, Casey R.; Soulet, Axel; Jursich, Gregory; McAndrew, James; Belot, John A. (2006). "Direct syntheses and complete characterization of halide-free tetrakis(dialkylamino)silanes". Inorganic Chemistry Communications. 9 (7): 761. doi:10.1016/j.inoche.2006.04.027.