LAUSR

Abstract An acetate bridged coordination polymer of lanthanum, formulated as {[La(μ-CH3COO)(PDC)(H2O)2].2H2O}n (H2PDC = pyridine-3,4-dicarboxylic acid) has been successfully grown by single gel diffusion technique at room temperature using hydrosilica gel and further characterized by elemental analysis, powder X-ray diffraction, FT-IR and UV–visible spectral studies. The compound crystallizes in triclinic space group, Pī. The metal centre is nine coordinated by oxygen atoms to form distorted tri-capped trigonal prism geometry. Single crystal X-ray diffraction studies reveal that the compound exists as one dimensional polymeric chain which is further assembled into 2D supramolecular framework via extensive hydrogen bonding. The dielectric and thermal decomposition behaviour of the sample was also studied.