Pressure-induced transition from the dynamic to static Jahn-Teller effect in (Ph${}_4$P)${}_2$IC${}_{60}$

E. A. Francis, S. Scharinger, K. Németh +2

High-pressure infrared transmission measurements on \PhC60 were performed up to 9 GPa over a broad frequency range (200 - 20000 cm${}^{-1}$) to monitor the vibrational and electronic…