No abstract

Two novel Cd(II) coordination polymers [Cd 4 (C 6 H 4 O 2 N) 8 (H 2 O) 4 ] n (1) and [Cd 2 (C 10 H 2 O 8 )(H 2 O) 6 ] n (2) have been synthesized under hydrothermal condition and structurally characterized. Crystal data: (1), orthorhombic, Pbca, a = 11.4494(19)(2), triclinic, P1, a = 5.5962(7) Å, b = 7.7758(6) Å, c = 9.6975(10) Å, α = 111.981(5) • , β = 101.649(6) • , γ = 98.240(5) • , V = 371.95(7) Å 3 , Z = 2, D calc = 2.603 g·cm −3 . Complex (1) possesses threedimensional infinite structure, while complex (2) adopts two-dimensional layers and the layers are connected by the many types of hydrogen bonds, forming three-dimensional network. Study results of the photophysical properties show that both complexes can emit strong blue fluorescence and complex (1) also emits phosphorescence (λ pl max = 511 nm, τ = 32 ms) in the solid state at room temperature.