Synthesis, Crystal Structure and Luminescence Property of a Cd(Ⅱ) Complex Assembled by 4-Carboxymethoxy Phenylacetic Acid

A new structure with the molecular formula [CdL]n was formed by CdSO4 with 4-carboxymethoxy phenylacetic acid (H2L) through the hydrothermal method. The complex was characterized by elemental analysis and infrared spectroscopy. The structure of the complex was determined by single-crystal X-ray diffraction, which is of monoclinic system, space group P21/c with a = 10.3887(2), b = 7.10710(10), c = 14.7212(2) , β = 120.6940(10)°, V = 934.65(3) 3, Dc = 2.278 g·cm-3, Z = 4, F(000) = 624, S = 1.022, the final R = 0.0187 and wR = 0.0487 for 2000 observer reflections (Ⅰ > 2σ(Ⅰ)). The center metal ion Cd(Ⅱ) in the complex is six-coordinated in a distorted octahedral geometry, and is connected with L ligands to form a 3D fishing net structure, which is a novel (3,6) network topology. The luminescence of the complex has been investigated, and the result reveals that it displays luminescent property in the voilet region.