Title: SrNp(PO4)2: an Original Ordered Modification of Cheralite
Authors: POPA KarinWALLEZ GRAISON PhilippeBREGIROUX D.APOSTOLIDIS ChristosLINDQVIST-REIS PatricKONINGS Rudy
Citation: INORGANIC CHEMISTRY vol. 49 p. 6904-6908
Publisher: AMER CHEMICAL SOC
Publication Year: 2010
JRC N°: JRC58210
ISSN: 0020-1669
URI: http://pubs.acs.org/journal/inocaj
http://publications.jrc.ec.europa.eu/repository/handle/JRC58210
DOI: 10.1021/ic100376u
Type: Articles in Journals
Abstract: The new compound SrNp(PO4)2 (orthorhombic Cmca) has been synthesized by solid state reaction and studied by Rietveld analysis. Though chemically and structurally related to cheralite CaTh(PO4)2, it shows alternate layers of SrO10 and NpO8 polyhedra instead of a disordered array of MO9 units. This unknown structural model allows explaining the narrow limits of the cheralite domain in terms of cations size and suggests that transuranium-loaded compounds could also be ordered derivates of the archetype. The validity of thorium-designed models for approaching transuranian structural chemistry is discussed
JRC Institute:Institute for Transuranium Elements

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