No abstract

Three novel lanthanide coordination polymers {[Ce 2 (HOnic) 4 (Onic) 2 (H 2 O) 2 ]•6H 2 O} n (1), {[Ln(HOnic)(Onic)-(H 2 O) 5 •(HOnicH)]•H 2 O} n [HOnicH＝6-hydroxynicotinic acid, Ln＝Nd (2), Pr (3)] have been synthesized and characterized by elemental analyses, IR spectrum and single crystal X-ray diffraction. Structure analyses reveal that 1 features a 2D plane structure while compounds 2 and 3 possess a 1D chain-like polymeric structure. TG analyses indicate that 1 exhibits higher thermostability than 2 and 3, which was attributed to the layer polymeric structure of 1.