Seven-coordinated chelate [Cd(SCZ) 3 ·H 2 O](HTNR) 2 (H 2 O) 2 : Synthesis, crystal structure and energetic properties.

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]