Cs(2)K(UO)(2)Si(4)O(12): a mixed-valence uranium(IV,V) silicate.
The first mixed-valence uranium(IV,V) silicate is synthesized under high-temperature, high-pressure hydrothermal conditions. The structure contains chains of corner-sharing U(IV,V)O(6) octahedra which are interconnected by Si(4)O(12) four-membered rings to form a 3-D framework. XPS and XANES spectra were measured to identify the valence state of uranium.
Lee
Cheng-Shiuan
CS
Department of Chemistry, National Tsing Hua University, Hsinchu, Taiwan, ROC.
Wang
Sue-Lein
SL
Lii
Kwang-Hwa
KH