Hexa‐<i>tert</i>‐butylcyclotrisilane, a Strained Molecule with Unusually Long SiSi and SiC Bonds

Abstract

A cyclotrisilane having remarkable properties, namely the title compound 1c, has been prepared. Unlike 1a and 1b, 1c is readily accessible, air-stable, and can be heated to its melting point (180°C) without decomposition. Judging from the bond lengths and bond angles 1c is highly strained and energy-rich; but once formed, the tBu groups ensure high stability.