The complex compound NiBr2×2(CH2)6N4×10H2O was synthesized and structurally characterized using X-ray crystallography, thermogravimetric analysis, differential scanning calorimetry, and infrared spectroscopy. The complex crystallizes in a monoclinic system (P21/c) with an octahedral nickel coordination environment, where Ni-O bond lengths range from 2.027 to 2.058 Å. Thermal analysis confirmed stability up to 150°C, followed by dehydration, HMTA degradation at 200°C, and framework breakdown above 300°C. DSC revealed distinct endothermic transitions. IR spectroscopy detected Ni-O stretching (450–600 cm-1), N-C vibrations (1300–1600 cm-1), and O-H stretching (3200–3600 cm-1), confirming hydrogen bonding interactions. These findings provide quantitative insights into the compound’s structural stability, thermal behavior, and hydrogen bonding network, with potential applications in materials science and catalysis.
Tulenbaeva et al. (Thu,) studied this question.