POWDER X-RAY DIFFRACTION STUDY OF A ONE-DIMENSIONAL CADMIUM(II) ISONICOTINATE COORDINATION POLYMER

Abstract

A one-dimensional cadmium(II) coordination polymer based on the isonicotinate ligand was investigated by powder X-ray diffraction (PXRD). The compound, formulated as catena-poly[(μ₂-isonicotinato-κ²O,O′:κN)(κ²-O,O′-nitrato)(diaqua)cadmium(II)]·(N,N-dimethylamine), belongs to the class of one-dimensional coordination polymers. Powder X-ray diffraction analysis was performed to evaluate the phase purity and structural integrity of the synthesized material. The experimental PXRD pattern was compared with the simulated pattern generated from single-crystal X-ray diffraction data. A good agreement between the positions of the major diffraction peaks in the experimental and simulated patterns confirms the successful synthesis of the target phase. Minor differences in peak intensities can be attributed to preferred crystal orientation, particle size effects, and sample preparation conditions. Furthermore, the absence of additional diffraction peaks indicates that no detectable crystalline impurities are present in the sample. The sharp and well-defined reflections observed in the diffraction pattern also suggest a high degree of crystallinity of the synthesized material. The results demonstrate that the bulk material possesses the same crystal structure as that determined from single-crystal analysis and confirm the phase purity and crystallographic homogeneity of the obtained coordination polymer.