Cs(4)UGe(8)O(20): A Tetravalent Uranium Germanate Containing Four- and Five-Coordinate Germanium

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題名:	Cs(4)UGe(8)O(20): A Tetravalent Uranium Germanate Containing Four- and Five-Coordinate Germanium
作者:	Nguyen,QB;Lii,KH
貢獻者:	化學學系
關鍵詞:	BOND-VALENCE PARAMETERS;CRYSTAL-CHEMISTRY;XPS SPECTRA;SILICATE;COFFINITE;MINERALS;CHANNELS
日期:	2011
上傳時間:	2012-03-27 18:11:41 (UTC+8)
出版者:	國立中央大學
摘要:	A very rare tetravalent uranium germanate has been synthesized under hydrothermal conditions at 585 degrees C and 160 MPa. Its structure contains layers of single-ring Ge(3)O(9)(6-) germanate anions that are connected by UO(6) 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.
關聯:	INORGANIC CHEMISTRY
顯示於類別:	[化學學系] 期刊論文

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