The ozonation of the title compounds was studied in argon and CO2 matrices at low temperatures (12–80K). All three were found to react with ozone in a CO2 matrix deposited at low temperature, and having an amorphous structure. The reaction was found to start at 26K, the temperature at which the matrix undergoes a phase transition. In contrast, only tetramethylethylene (TME) was found to react in an argon matrix, the other two ...