Science and Technology of Energetic Materials

Vol.66, No.6 (2005)Special Issue for ISEM 2005


Study on thermal behavior of 1H-1,2,4-triazole-copper complex with substituents
Wasana Kowhakul, Mieko Kumasaki, and Mitsuru Arai


In this presented study, the effects of substituent, its ability to supply/withdraw electron to/from the reaction site, to 1H-1,2,4-Triazole-Copper complex (1Htri-Cu) were investigated. The substituent were selected from their Hammett constant value. Nitro group (-NO2), Chloro group (-Cl) and Amino group (-NH2) were selected and 1H-1,2,4-Triazole-Copper complex (1Htri-Cu), Nitro-1H-1,2,4-Triazole-Copper complex [(1Htri-NO2)Cu], Amino-1H-1,2,4-Triazole-Copper complex [(1Htri-NH2)Cu] and Chloro-1H-1,2,4-Triazole-Copper complex [(1Htri-Cl)Cu] were synthesized and their thermal decomposition behaviors were investigated. According to Sealed Cell – Differential Scanning Calorimetry (SC-DSC), the substituents can be used to control the thermal stability of 1Htri-Cu complex by considering its Hammett constant value.

Moreover, in relation to the Flash pyrolysis / FTIR, the part of decomposed gases such as HCN, NO2 and N2 were similar at the 1000 degree Celsius. And finally, with the Gaussian03 calculation, TDSC may concern with bond length of N2-C3.

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1H-1,2,4-triazole, Metal complex, Substituent, Thermal decomposition, DSC

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