The Studies of Free Radical Reactions by Using Time-resolved FTIR Emission Spectroscopy

In the past fifteen years，free radical reactions in the gaseous phase have been widely studied by timeresolved fourier transform spectroscopy. Sloan et al. first investigated O（1D）reactions and then Leone and Hancock groups studied O（3P）reactions. Later，Kong，Zhu et al. investigated small radical，including CH，CH2，CH3，C2H3，C2H5，C2H，C3H3 and C3H5，reacting with the molecules of O2，NO，N2O，NO2 . For each reaction，nascent products and primary channels are observed in the IR spectrum. Combining with ab initio theoretical investigations，the reaction mechanisms are almost understood.