Abstract
In this article, two compounds [H2bpy][Ln(DMF)4(H2O)3(Hbpy)][H2W12O40] (Ln = La,Ce; DMF = N,N-dimethylformamide, bpy = 4,4′-bipyridine) have been synthesized and characterized by single-crystal X-ray diffraction, IR spectra, and TG analysis. X-Ray analysis showed that the [Ln(DMF)4(H2O)3(Hbpy)]4+ unit is supported on the α-Keggin polyoxoanion [H2W12O40]6− via the surface bridging oxygen atom. The [H2bpy][Ln(DMF)4(H2O)3(Hbpy)][H2W12O40] entity is further extended into 2D supramolecular networks with 1-D channels by hydrogen-bonding interactions, in which 4,4′-bipy ligands reside. To the best of our knowledge, these complexes represent the first examples of rare earth metal-organic complex-decorated α-metatungstate clusters. Furthermore, the electrochemical properties of these compounds have been studied via the method of bulk-modified carbon paste electrodes.
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Supported by National Science Foundation of China (No. 20371011); Science and Technology Development Project Foundation of Jilin Province (No. 20060420); Analysis and testing foundation of Northeast Normal University (no. 201586000/201372000); and Ph.D station Foundation of Ministry of Education (No. 20060200002).
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Chen, H., Ding, Y., Wang, E. et al. Structural characterization of two lanthanide complexes attached to [H2W12O40]6− . Transition Met Chem 33, 341–346 (2008). https://doi.org/10.1007/s11243-007-9047-6
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DOI: https://doi.org/10.1007/s11243-007-9047-6