Bis(trimethylsilyl)mercury is a chemical reagent with the formula (CH3)3-Si-Hg-Si-(CH3)3.
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3D model (JSmol)
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CompTox Dashboard (EPA)
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Properties | |
C6H18HgSi2 | |
Molar mass | 346.972 g·mol−1 |
Boiling point | 104 °C (377 K)(dec.) |
Hazards | |
GHS labelling: | |
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Danger | |
H300, H310, H330, H373, H410 | |
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).
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Synthesis
editThis 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
Reactions
editOn 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
Reaction with hydrogen chloride gives trimethylsilane and trimethylsilyl chloride:[1]
- TMS2Hg + HCl → TMSH + TMSCl + Hg
References
edit- ^ 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.
Further reading
edit- Pickett, Nl; Just, O; Vanderveer, Dg; Rees Ws, Jr (Apr 2000). "Reinvestigation of bis(trimethylsilyl)mercury". Acta Crystallographica C. 56 (4): 412–3. doi:10.1107/S0108270199016339. PMID 10815189.