Tetrakis(trimethylsilyl)methane

Tetrakis(trimethylsilyl)methane (TTMSM) is an organic compound with formula C13H36Si4, consisting of four trimethylsilyl (Si(CH3)3) groups bonded to a central carbon atom. It is extremely sterically crowded but unlike with the all-carbon equivalent tetra-tert-butylmethane which is only known as a theoretical compound, the longer silicon-carbon bonds allow this compound to be synthesised.