Pentazolate coordination polymers self-assembled by generated [Pb(OH)] cubic cations trapping -N.

A series of -N-based lead-containing energetic coordination polymers Pb(OH) (1), Pb(N)(HO)(NO)(HO) (2), Pb(OH)(NO)(HO) (3), and Pb(OH)(ClO)(HO) (4) were synthesized by self-assembly and characterized by single-crystal X-ray diffraction, powder X-ray diffraction, infrared and Raman spectroscopy, high resolution mass spectrometry, elemental analysis, scanning electron microscopy, and differential scanning calorimetry. In addition, their thermal decomposition kinetics have been studied theoretically and experimentally. The results revealed that the synthesized CPs possess regular structures, very high densities (2.852-4.537 g cm), good oxygen balances (CO) (-2.72-+2.61%), good thermal stabilities (80-110 °C), and acceptable sensitivities (9.5-20 J; 120-240 N). This work will provide new inspiration for the development of -N-based coordination polymers and energetic materials.