An Energy Dispersive X-ray Diffraction (EDXD) study of 0.3 m dioxouranium(VI) in 1 m lithium citrate at pH = 5 is reported. The data are in accordance with the existence of a predominately polynuclear complex contg. four U atoms, concluded from potentiometric measurements. The uranium atoms lie at the corners of two triangles sharing one edge. Five O atoms surround each uranyl group, the uranium coordination polyhedron being a pentagonal bipyramid; four U atoms are linked through double or single O bridges. The U-U distances are 3.95 .ANG. and 4.65 .ANG..
An energy dispersive X-ray diffraction study of dioxouranium(VI) in 1 M lithium citrate / Vasca, E; Palladino, G; Manfredi, C; Fontanella, C; Sadun, Claudia; Caminiti, Ruggero. - In: EUROPEAN JOURNAL OF INORGANIC CHEMISTRY. - ISSN 1434-1948. - STAMPA. - (2004), pp. 2739-2746. [10.1002/ejic.200300740]
An energy dispersive X-ray diffraction study of dioxouranium(VI) in 1 M lithium citrate
SADUN, Claudia;CAMINITI, Ruggero
2004
Abstract
An Energy Dispersive X-ray Diffraction (EDXD) study of 0.3 m dioxouranium(VI) in 1 m lithium citrate at pH = 5 is reported. The data are in accordance with the existence of a predominately polynuclear complex contg. four U atoms, concluded from potentiometric measurements. The uranium atoms lie at the corners of two triangles sharing one edge. Five O atoms surround each uranyl group, the uranium coordination polyhedron being a pentagonal bipyramid; four U atoms are linked through double or single O bridges. The U-U distances are 3.95 .ANG. and 4.65 .ANG..I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
