Nitrogen-Rich Coordination Compounds with N,N-Bis(1H-tetrazole-5-yl)-amine: Synthesis, Structure and Effect on the Thermal Decomposition of Ammonium Perchlorate

Two coordination compounds with N,N-bis(1H-tetrazole-5-yl)-amine (H(2)bta), Cu(bta)(bpy)(H2O) (1) and Pb-2(bta)(2)(en)(2) center dot 4H(2)O (2) (bpy=2,2'-bipyriclyl and en=ethylenediamine), have been hydrothermally synthesized and structurally characterized by single crystal X-ray diffraction. In 1, die H(2)bta ligands coordinate with Cu2+ ions in the bidentate chelate mode to form discrete molecular structures, which are assembled through extended hydrogen bonds to generate a 31) architecture. 2 presents a 31) supramolecule stucture constructed from 11) chains, in which the binuclear Pb-2(bta)(2)(en)(2) units are bridged by the strong hydrogen bond ring motif R-2(2)(8). Furthermore, compounds 1 and 2 were explored as additives to promote the thermal decomposition of ammonium perchlorate (AP) by the differential scanning calorimetry techniques (DSC). DSC curves reveal that lead-based compound 2 shows better performance than the copper-based compound 1. CCDC: 855627,1; 774052, 2.