The luminescence from the neptunyl(VI) ion and its polyoxometallate complexes has been investigated in solution for the first time. Emission occurs in the near-IR and is quenched effectively by O−H oscillators in the hydrated ion. The polyoxometallate complexes exclude solvent from the neptunyl coordination sphere and have much more intense and longer-lived emission spectra.
We report the structural, spectroscopic and preliminary magnetic characterisation of a tri-metallic plutonyl(VI) polyoxometalate complex, K(11)[K(3)(PuO(2))(3)(GeW(9)O(34))(2)] x 12 H(2)O.
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