Silicon tetraiodide

Silicon tetraiodide
Names
	Other names silicon tetraiodide ; Tetraiodosilane
Identifiers
CAS Number	13465-84-4 ;
3D model (JSmol)	Interactive image;
ChemSpider	75335 ;
ECHA InfoCard	100.033.355
EC Number	236-706-2;
PubChem CID	83498;
CompTox Dashboard (EPA)	DTXSID5065489 ;
	InChI InChI=1S/I4Si/c1-5(2,3)4 Key: CFTHARXEQHJSEH-UHFFFAOYSA-N ; InChI=1/I4Si/c1-5(2,3)4 Key: CFTHARXEQHJSEH-UHFFFAOYAL;
	SMILES I[Si](I)(I)I;
Properties
Chemical formula	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)
Solubility in water	reacts
Solubility in organic solvents	soluble
Structure
Molecular shape	tetrahedral
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H311, H314, H317, H334, H360
Precautionary statements	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)	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). verify (what is ?) Infobox references

Silicon tetraiodide is the chemical compound with the formula Si I₄. 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.

^ Kolonits, Maria; Hargittai, Magdolna (1998). "Molecular Structure of Silicon Tetraiodide". Structural Chemistry. 9 (5): 349–352. doi:10.1023/A:1022462926682. S2CID 96658381.
^ 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.

[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.

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