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Two recently introduced concepts in the design of high-energy-density materials (HEDMs), namely Metal–organic frameworks (MOFs) and Chelating energetic material (CEM), have been applied in the synthesis of the energetic manganese (II) compound {[Mn(btm)(H2O)3]2·H2O}n (1) (H2btm = bis(tetrazole)methane), cocrystalized by a dinuclear CEM and a 1D MOF, which is characterized by elemental analysis and FTIR spectroscopy. Single-crystal X-ray diffraction analysis revealed that 1 crystallizes in the monoclinic space group P21/c. The Mn2+ was hexa-coordinated with two btm groups and three water molecules. Btm presents tridentate coordination modes. The thermal decomposition mechanism of 1 was studied by differential scanning calorimetry (DSC). The non-isothermal kinetics parameters were calculated by the Kissinger's method and Ozawa-Doyle's method, respectively. Sensitivity tests revealed that 1 is insensitive to mechanical stimuli. [ABSTRACT FROM AUTHOR]

To deepen the study on heptacoordinate transition metal coordination complexes, a novel seven-coordinated coordination compound [Cd(SCZ)3·H2O](HTNR)2(H2O)2(1, SCZ = semicarbazide, H2TNR = styphnic acid) was synthesized and characterized by elemental analysis and FTIR spectroscopy. Single-crystal X-ray diffraction analysis revealed that1crystallizes in the triclinic space groupP-1. The thermal decomposition mechanism of1was studied by differential scanning calorimetry (DSC). The non-isothermal kinetics parameters were calculated by the Kissinger's method and Ozawa-Doyle's method, respectively. Sensitivity tests revealed that1is insensitive to mechanical stimuli. The heat of combustion was measured by oxygen bomb calorimetry and the enthalpy of formation was calculated. [ABSTRACT FROM PUBLISHER]