Novel lanthanide coordination polymers with Eu-compound exhibits warm white light emission: Synthesis, structure, and magnetic properties

• Five novel lanthanide coordination polymers were synthesized and structurally characterized.
• Eu-compound shows a warm white light emission upon excitation.
• Magnetic measurement indicates weak ferromagnetic coupling existing between adjacent Tb3+ centers.

Five two-dimensional lanthanide coordination polymers: [Ln2(TDA)3(bipy)2(H2O)2]·bipy·2H2O (Ln = Nd (1), Sm (2), Eu (3), Tb (4), Yb (5), TDA = thiophene-2,5-dicarboxylic acid anion, bipy = 2,2′-bipyridine) were fabricated and structurally characterized. Compounds 1–5 are isostructural belonging to the triclinic system with space group P-1. Luminescence analyses were performed on coordination polymers containing Eu3 + and Tb3 +, and compound 3 shows a warm white light emission upon excitation.

Five novel lanthanide coordination polymers: [Ln2(TDA)3(bipy)2(H2O)2]·bipy·2H2O (Ln = Nd (1), Sm (2), Eu (3), Tb (4), Yb (5), TDA = thiophene-2,5-dicarboxylic acid anion, bipy = 2,2′-bipyridine) were fabricated and structurally characterized. Luminescence analyses suggest that compound 3 shows a warm white light emission upon excitation.Figure optionsDownload as PowerPoint slide