Three new energetic complexes with N, N-bis(1H-tetrazole-5-yl)-amine as high energy density materials: syntheses, structures, characterization and effects on the thermal decomposition of RDX. Issue 8 (6th February 2017)

• Record Type: Journal Article
• Authors: Yang, Qi; Song, Xiaxia; Zhang, Wendou; hou, Lei; Gong, Qibing; Xie, Gang; Wei, Qing; Chen, Sanping; Gao, Shengli
• Is Part Of: Dalton transactions. Volume 46:Issue 8(2017)
• Page Start: 2626
• Page End: 2634
• Publication Date: 2017-02-06
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c6dt04439e
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : Three new complexes can be used as HEDMs. Insensitive2 is a safer form for storage and transportation than sensitive3 . Abstract : Three new energetic complexes, [Pb(bta)(H2 O)] n (1 ), [PbCu(bta)2 (H2 O)5 ]·2H2 O (2 ) and PbCu(bta)2 (3 ) (H2 bta = N, N -bis(1 H -tetrazole-5-yl)-amine), have been synthesized and characterised. In particular, 3 was readily synthesized by dehydration of2 at 190 °C. Single crystal X-ray diffraction revealed that1 has a 3D framework structure and2 presents a 3D supermolecular architecture. Thermoanalyses demonstrated that the main frames of1 and2 have good thermostabilities up to 314 °C for1 and 231 °C for2 . Non-isothermal kinetic and thermodynamic parameters of exothermic decomposition processes of1 and2 were obtained by Kissinger's and Ozawa's methods. Based on the constant-volume combustion energies measured by a precise rotating-bomb calorimeter, the standard molar enthalpies of formation of1 and2 were determined. The calculation of the detonation properties of1 and2 and the impact sensitivity tests of1, 2 and3 were carried out. In addition, 1, 2 and3 were explored as combustion promoters to accelerate the thermal decompositions of RDX (1, 3, 5-trinitro-1, 3, 5-triazine) by differential scanning calorimetry. Experimental results showed that1, 2 and3 can be used as HEDMs in the field of combustion promoters and insensitive2 can be regarded as a safer form for mass storage and transportation than sensitive3 .