Cs4UGe8O20: A tetravalent uranium germanate containing four- and five-coordinate germanium

Quang Bac Nguyen, Kwang Hwa Lii

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23 Scopus citations

Abstract

A very rare tetravalent uranium germanate has been synthesized under hydrothermal conditions at 585 °C and 160 MPa. Its structure contains layers of single-ring Ge3O96- germanate anions that are connected by UO6 octahedra and dimers of edge-sharing GeO 5 trigonal bipyramids to form a three-dimensional framework with intersecting 6- and 7-ring channels. UV-visible, photoluminescence, and U 4f X-ray photoelectron spectroscopy were used to confirm the valence state of uranium.

Original languageEnglish
Pages (from-to)9936-9938
Number of pages3
JournalInorganic Chemistry
Volume50
Issue number20
DOIs
StatePublished - 17 Oct 2011

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