Abstract:
This manuscript presents the successful synthesis and characterization of seven series of
coordination polymers constructed from lanthanide ions in combination with isophthalic acid
and pimelic acid as organic linkers. Among the synthesized compounds, four series (Series 1-
4) are newly reported compounds that, to the best of our knowledge, have not previously
appeared in the literature. The remaining series (Series 5-7) correspond to known structures
obtained with different lanthanide ions.
Comprehensive characterization was carried out using infrared (IR) spectroscopy, powder Xray diffraction (PXRD), and thermal analysis. IR spectroscopy confirmed the coordination of
isophthalate and pimelate ligands to the metal centers. PXRD analyses revealed the
isostructurality, phase purity, and crystallinity of the synthesized compounds, while thermal
studies demonstrated their multi-step decomposition behaviour.
Photoluminescence studies conducted in the visible range on selected compounds showed
promising emission properties, highlighting their potential use in optical or sensing
applications. The findings contribute to the growing body of knowledge on lanthanide-based
coordination polymers and their functional properties
