The desilylation of PTA (Su Figure ) was chosen as the mod study. The VSC of the Si-C stre (ν Si-C ; 860 cm -1 , blue curve in Figu to retard the Si-C bond scission us to do a detailed thermodynam Vibrational strong coupling of th using a Fabry-Pérot cavity asse controllable and demountable Specac) equipped with holes to i filled Fabry-Pérot cavity (empty cell by placing a Mylar spacer (6 ± central region) on top of an A (bottom mirror), which is then of Au sputtered on a ZnSe subst outlet hole for sample injection. T reactants, a 200-nm-thick SiO 2 ( top of the Au mirrors. The IR cell ing the screws on the top lid. Su many equally spaced modes in is determined by the path length Using a screwdriver, the empty c fine-tuned by adjusting the scre