Abstract
A new energetic Ba(II) coordination polymer [Ba(tza)2]n (where tza = tetrazole-1-acetic acid anion) was synthesized and characterized by X-ray single crystal diffraction, elemental analysis and IR spectroscopy. In the molecule, the central Ba(II) cation was coordinated by eight carboxylic O atoms from six different tza ions. Quadridentate tza anion bridged three various Ba(II) atoms and formed a 2D supramolecular network. Differential scanning calorimetry (DSC) and thermogravimetric differential thermogravimetric (TG DTG) analyses were applied to assess the thermal decomposition behavior. The kinetic parameters were obtained by non-isothermal reaction kinetics, and the Arrhenius equation can be expressed as lnk = 22.47 – 291× 103/RT. Critical temperature of thermal explosion, thermodynamic parameters, energy of combustion, enthalpy of formation and sensitivities of [Ba(tza)2]n were measured or calculated to argue that as a potential energetic material.
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