Abstract
AbstractA new Cd(II) coordination polymer of [Cd(H2L)(4,4’‐bipy)(H2O)]n (1, H4L=4‐[(3,4‐dicarboxyphenyl)disulfanyl]benzene‐1,2‐dicarboxylic acid, 4,4’‐bipy=4,4’‐bipyridine) was hydrothermally synthesized. The H4L ligand was in situ generated via the formation of disulfide bond between two 4‐sulfanylbenzene‐1,2‐dicarboxylic acid molecular. The in situ generated H4L ligand deprotonated two protons into H2L2−, which acts as a bidentate ligand to connected Cd(II) ions into a 2D layered structure with the assistance of 4,4’‐bipy ligands. The solids of 1 emits strong blue luminescence, and can be used as a luminescence probe for the detection of Co2+ ions. The limit of detection (LOD) of Co(II) ions by 1 was calculated to be 5.4 μM.
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