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Bis(trimethylsilyl)mercury

Bis(trimethylsilyl)mercury is a chemical reagent with the formula (CH<sub>3</sub>)<sub>3</sub>-Si-Hg-Si-(CH<sub>3</sub>)<sub>3</sub>.

Synthesis

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

2 Na + Hg + TMSBr → TMS<sub>2</sub>Hg + 2 NaBr

Reactions

On prolonged heating at 100-160&nbsp;°C, or when stood under light as an ethereal solution, it decomposes to hexamethyldisilane:

TMS<sub>2</sub>Hg → (CH<sub>3</sub>)<sub>3</sub>Si-Si(CH<sub>3</sub>)<sub>3</sub> + Hg

Reaction with hydrogen chloride gives trimethylsilane and trimethylsilyl chloride:

TMS<sub>2</sub>Hg + HCl → TMSH + TMSCl + Hg

References

Further reading