[Mn (CHZ)3] (ClO4)2 (MnCP), [Ni (CHZ)3] (ClO4)2 (NiCP) and [Pb (CHZ)3] (ClO4)2 (PbCP) (CHZ =Carbohydrazide) were flash pyrolyzed at different temperatures under the set pressure by T-jump/FTIR spectroscopy. The results show that twelve gas products obtained during the flash pyrolysis process of the three complexes were CO2,CO, HCl, HCN, NH3, NO2, N2O, NO, HNCO, HONO, H2C=O and H2O, of which CO2, HCN and HCl were the main gas products and CO2 was the most novel product. NH3 was oxidized to NO2, N2O and H2O. At least some of the N2O might result from this reaction. Additionally, the effect of temperature on the gas products is discussed and the concentration-time change curves of the main gas products are given.
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