ja0543853_si_002.cif (14.65 kB)

K(UO)Si2O6:  A Pentavalent−Uranium Silicate

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posted on 07.09.2005, 00:00 by Chih-Shan Chen, Shang-Fan Lee, Kwang-Hwa Lii
We report the first example of pentavalent−uranium silicate synthesized by a high-temperature, high-pressure hydrothermal method. The 3-D framework consists of four-membered single rings of corner-sharing SiO4 tetrahedra and 1-D UO4/1O2/2 chains. Magnetic susceptibility and XPS were measured to identify the valence state of uranium.