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A novel uranyl complex with dimeric lacunary polyoxoanion like open-mouthed clam, Na5[(A-α-SiW9O33H3)2K{UO2(H2O)}2], was prepared and characterized by elemental analysis, infrared and ultraviolet–visible spectroscopy and single crystal X-ray diffraction. In the anion, two A-α-SiW9O 3410− groups share two terminal oxygen atoms Od′ derived from removal of three corner-shared W atoms from saturated...
A novel polyoxometalate compound consisting of monolacunary Wells-Dawson anions and trivalent lanthanide cations, K4Na2H2[Ce2(H2O)12(α2-P2W17O61)]2·10H2O (1), has been synthesized and characterized by single crystal X-ray diffraction, elemental analyses, IR spectrum, UV spectrum and TG analyses. Single crystal X-ray diffraction reveals that CeIII ions occupy the lacunary site in the ‘cap’ regions...
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