TY - JOUR
T1 - Confined rapid thermolysis/FTIR/ToF studies of triazolium-based energetic ionic liquids
AU - Chowdhury, Arindrajit
AU - Thynell, Stefan T.
N1 - Funding Information:
This material is based upon work supported by the U.S. Air Force Office of Scientific Research under Contract No. FA9550-07-1-0432, with Dr. Michael Berman serving as the program manager. Funding for the purchase of the time-of-flight mass spectrometer by the U.S. Army Research Office under Contract No. DAAD19-01-1-0449, with Dr. David M. Mann serving as the program manager, is gratefully acknowledged. Sincere thanks go to Drs. Hawkins and Drake of Edwards AFB for providing 4ATN.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2007/12/30
Y1 - 2007/12/30
N2 - The thermal decomposition of two energetic ionic liquids, formed by pairing the 4-amino-1,2,4-triazolium cation with chloride (4ATCl), and nitrate (4ATN) anions, was studied by confined rapid thermolysis. Rapidscan FTIR spectroscopy and time-of-flight mass spectrometry were utilized in conjunction to identify the products of decomposition. Decomposition was achieved under heating rates of 2000 K/s and temperatures up to 340 °C for 4ATCl and 4ATN in an ambient inert gas at 1 atm. Whereas a proton transfer from the N1 position primarily initiated decomposition in 4ATCl, the amino group was found to primarily participate in the initiation reaction in case of 4ATN. The parent molecule, 1-H-1,2,4-triazole, was detected during subsequent reactions. Ring fracture was also evident from the presence of HCN. The highly energetic nitrate salt formed copious amounts of H2O and N2O through multiple secondary reaction channels.
AB - The thermal decomposition of two energetic ionic liquids, formed by pairing the 4-amino-1,2,4-triazolium cation with chloride (4ATCl), and nitrate (4ATN) anions, was studied by confined rapid thermolysis. Rapidscan FTIR spectroscopy and time-of-flight mass spectrometry were utilized in conjunction to identify the products of decomposition. Decomposition was achieved under heating rates of 2000 K/s and temperatures up to 340 °C for 4ATCl and 4ATN in an ambient inert gas at 1 atm. Whereas a proton transfer from the N1 position primarily initiated decomposition in 4ATCl, the amino group was found to primarily participate in the initiation reaction in case of 4ATN. The parent molecule, 1-H-1,2,4-triazole, was detected during subsequent reactions. Ring fracture was also evident from the presence of HCN. The highly energetic nitrate salt formed copious amounts of H2O and N2O through multiple secondary reaction channels.
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U2 - 10.1016/j.tca.2007.09.009
DO - 10.1016/j.tca.2007.09.009
M3 - Article
AN - SCOPUS:36549035651
SN - 0040-6031
VL - 466
SP - 1
EP - 12
JO - Thermochimica Acta
JF - Thermochimica Acta
IS - 1-2
ER -