4.8 Article

Cs2K(UO)2Si4O12: A Mixed-Valence Uranium(IV,V) Silicate

Journal

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 131, Issue 42, Pages 15116-+

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ja9071805

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Funding

  1. National Science Council

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The first mixed-valence uranium(IV,V) silicate is synthesized under high-temperature, high-pressure hydrothermal conditions. The structure contains chains of corner-sharing (UO6)-O-IV,V octahedra which are interconnected by Si4O12 four-membered rings to form a 3-D framework. XPS and XANES spectra were measured to identify the valence state of uranium.

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