Journal
COMPTES RENDUS CHIMIE
Volume 8, Issue 6-7, Pages 999-1004Publisher
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.crci.2004.11.017
Keywords
uranium compound; mixed polytungstate; stibioheptadecatungstate; crystal structure
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The heteropolytungstate [((H3SbW17O59)-W-III)U-IV(HW5O18)](11-) was prepared using sodium tungstate and uranium(IV) fluoride or chloride. The crystallographic study shows a uranium(IV) atom at the centre of a square antiprism. It is bound by four oxygen atoms to a (H3SbW17O59)-W-III ligand and by four other oxygen atoms to a HW5O18 ligand. The unit cell is centered triclinic: a =13.4229(10), b =19.1285(12), c =19.3562(11), alpha =92.227(5), beta =98.722(6), gamma =96.378(6), V=4874(1) A(3). (c) 2005 Academie des sciences. Publie par Elsevier SAS. Tous droits reserves.
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