K3(U3O6)(Si2O7) and Rb3(U3O6)(Ge2O7): A pentavalent-uranium silicate and germanate

Chia Hui Lin, Chih Shan Chen, A. A. Shiryaev, Ya V. Zubavichus, Kwang Hwa Lii

Research output: Contribution to journalArticlepeer-review

52 Scopus citations

Abstract

A new uranium(V) silicate, K3(U3O6) (Si2O7), and the germanate analogue, Rb3(U 3O6)(Ge2O7), have been synthesized under high-temperature, high-pressure hydrothermal conditions and characterized by single-crystal X-ray diffraction. Their structures contain uranate columns formed of triple octahedral chains of the α-UF5 type linked by disilicate (or digermanate) units to form a 3-D framework structure. The valence state of uranium is confirmed by X-ray photoelectron spectroscopy, X-ray absorption spectroscopy, and magnetic susceptibility.

Original languageEnglish
Pages (from-to)4445-4447
Number of pages3
JournalInorganic Chemistry
Volume47
Issue number11
DOIs
StatePublished - 2 Jun 2008

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