Eight new lanthanide coordination polymers: Synthesis, structure, and luminescence properties

Eight two-dimensional lanthanide coordination polymers: {[Ln2(Cmba)3(H2O)5]·3H2O}n (Ln = La (1), Pr (2), Nd (3), Sm (4), Eu (5), Gd (6), Tb (7), Dy (8), Cmba = 3-(carboxymethoxy)-4-methoxybenzoic acid anion) were fabricated and structurally characterized. Compounds 1–8 are isostructural belonging to the triclinic system with space group P-1. Luminescence analyses were performed on coordination polymers containing Sm3+, Eu3+ and Tb3+, and compound 4 and 5 shows a different color emission upon different excitation wavelength.