Synthesis, Structures, and Luminescent Properties of Two Four‐connected Polymers Based on 2, 2‐Dimethylsuccinic Acid

The polymers [Cd(L)(H2O)] (1) and [Zn(L)(4, 4′-bipy)(H2O)3] (2) (L = 2, 2-dimethylsuccinated anion) were synthesized under hydrothermal conditions and characterized by IR spectrosopy, elemental analyses, and single-crystal X-ray diffraction analysis. The latter reveals that the polymer 1 exhibits a four-connected dia-topology net based on the novel tetranuclear CdII units, whereas polymer 2 displays a 4-connnected CdSO4 topology net. Moreover, the photoluminescent properties of 1 and 2 were investigated.