1,3,5,7-Tetramethyl-1,3,5,7-tetrasilaadamantane
# 1,3,5,7-Tetramethyl-1,3,5,7-tetrasilaadamantane

1,3,5,7-Tetramethyl-1,3,5,7-tetrasilaadamantane is the organosilicon compound with the formula $(CH_2)_6(SiCH_3)_4.$ It is a colorless solid that is soluble in organic solvents. The compound is one of the iconic carbosilanes, featuring alternating −Si−C−Si−C− linkages. Otherwise it can be described as a diamondoid cluster. It arises as one of many products from the pyrolysis of tetramethylsilane. A more efficient route involves the reaction of the cyclic carbosilane $(CH_2Si(CH_3)_2)_3$ (1,1,3,3,5,5-hexamethyl-1,3,5-trisilacyclohexane) with aluminium tribromide.

