Raman study of the pressure-induced phase transitions in the molecular donor-acceptor complex {Pt(dbdtc)2}C60

► We have studied the pressure-induced phase transitions in the fullerene complex {Pt(dbdtc)2}C60. ► We report the irreversible transitions related to the polymerization of the fullerene sub-lattice. ► The final polymeric network after pressure release differs from those of known polymers of C60.