Abstract
The organic ligand 1,10-phenanthroline-2,9-dicarboxylic acid (H2L) was used to react with ZnSO4·7H2O at 140 °C for two days to obtain the complex [Zn6(L)6(H2SO4)]·3CH3CN·Et3N (1). The structure of complex is confirmed by X-ray crystallography, TG and PXRD. The structure suggested that six ligands chelated with six Zn2+ ions. Every five-coordinated Zn(II) ion is surrounded by two N atoms and three O atoms (one sulfate radical or three ligands) with the N2O3 coordination environment. Each Zn(II) ion in the structure of complex 1 binds only one L2− ligand. The metal center Zn2 and Zn3 are bridged by SO42−. The photoluminescence of complex 1 is obvious. Moreover, in the presence of Cd2+ ions, the complex exhibits an efficient recognition ability, and it realizes the recognition of toxic metal ions.
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This work was supported by the Foundation of Key Laboratory of Functional Metal-Organic Compounds of Hunan Province (M018K05).
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Sheng, LB., Liu, MQ., Li, SX. et al. Highly Selective Sensing of Cd(II) Ion by Hexanuclear Functionalized Zn(II) Cluster. J Clust Sci 31, 429–434 (2020). https://doi.org/10.1007/s10876-019-01656-y
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DOI: https://doi.org/10.1007/s10876-019-01656-y