☆ 4.1 Article

A 2D layered Cd(II) coordination polymer supported by in situ generated tetracarboxylate ligand: luminescence sensing for Co2+ ions

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE (2022)

Journal

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE

Volume 648, Issue 20, Pages -

Publisher

WILEY-V C H VERLAG GMBH

DOI: 10.1002/zaac.202200242

Keywords

Hydrothermal synthesis; Layered structure; Cd(II) compound; Luminescence sensing

Categories

Chemistry, Inorganic & Nuclear

Funding

Foundation of Hebei Education Department [ZD2019033, ZD2020193, ZD2022084, Z2020138]
Technical Innovation Ability Training Project for college and high school students [22E50180D]
PhD Foundation of Hebei College of Industry and Technology [bz2020004]

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Abstract

A new Cd(II) coordination polymer 1 with strong blue luminescence was synthesized and can be used as a luminescence probe for the detection of Co2+ ions.

A 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 mu M.

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