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Bis(trimethylsilyl)mercury
Identifiers
CAS Number	4656-04-6 ;
3D model (JSmol)	Interactive image;
ChemSpider	21106419 ;
EC Number	236-315-7;
PubChem CID	83317;
CompTox Dashboard (EPA)	DTXSID20196873 ;
	InChI InChI=1S/2C3H9Si.Hg/c21-4(2)3;/h21-3H3; Key: RKCQQCXHUWKHGR-UHFFFAOYSA-N ; InChI=1/2C3H9Si.Hg/c21-4(2)3;/h21-3H3;/rC6H18HgSi2/c1-8(2,3)7-9(4,5)6/h1-6H3 Key: RKCQQCXHUWKHGR-GMLBIIQIAA;
	SMILES C[Si](C)(C)[Hg][Si](C)(C)C;
Properties
Chemical formula	C6H18HgSi2
Molar mass	346.972 g·mol−1
Boiling point	104 °C (377 K)(dec.)
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H300, H310, H330, H373, H410
Precautionary statements	P260, P262, P264, P270, P271, P273, P280, P284, P301+P310, P302+P350, P304+P340, P310, P314, P320, P321, P322, P330, P361, P363, P391, P403+P233, P405, P501
	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

Bis(trimethylsilyl)mercury is a chemical reagent with the formula (CH₃)₃-Si-Hg-Si-(CH₃)₃.

Synthesis

This compound was first synthesized by Wiberg et al. in 1963, by the reaction of trimethylsilyl bromide with sodium amalgam:^[1]

2 Na + Hg + TMSBr → TMS₂Hg + 2 NaBr

On prolonged heating at 100-160 °C, or when stood under light as an ethereal solution, it decomposes to hexamethyldisilane:^[1]

TMS₂Hg → (CH₃)₃Si-Si(CH₃)₃ + Hg

TMS₂Hg + HCl → TMSH + TMSCl + Hg

^ ^a ^b ^c Wiberg, E.; Stecher, O.; Andrascheck, H. J.; Kreuzbichler, L.; Staude, E. (1963). "Recent Developments in the Chemistry of Metal Silyls of the Type M(SiR3)n". Angew. Chem. Int. Ed. Engl. 2 (9): 507. doi:10.1002/anie.196305071.