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Absorption Spectra of Some Crystalline Np(V) Compounds in the Visible Range

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Abstract

The elecotronic absorption spectra in the range 500-750 nm were measured for crystalline Np(V) compounds with the pentagonal-bipyramidal [NpO2OOCH·H2O, NpO2OOCCH2OH·H2O, (NpO2)2(DMSO)7·(ClO4)2·3H2O, NpO2ClO4·4H2O], hexagonal-bipyramidal [KNpO2CO3, (NpO2)2(NO3)2·5H2O], and tetragonal-bipyramidal [NpO2(TPPO)4ClO4, Cs3NpO2Cl4] ligand surrounding. The symmetry of the coordination polyhedra affects the symmetry of narrow absorption bands; however, the long-wave shift of the peak of hydrated NpO2+ ions at 617 nm, caused by cation-cation interaction, is considerably less pronounced than the shift of the band at 981 nm.

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Authors and Affiliations

  1. Institute of Physical Chemistry, Russian Academy of Sciences, Moscow, Russia

    I. A. Charushnikova, N. N. Krot & V. P. Perminov

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  1. I. A. Charushnikova
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  2. N. N. Krot
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  3. V. P. Perminov
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Charushnikova, I.A., Krot, N.N. & Perminov, V.P. Absorption Spectra of Some Crystalline Np(V) Compounds in the Visible Range. Radiochemistry 43, 215–216 (2001). https://doi.org/10.1023/A:1012835820627

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