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 containing 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 Å and 4.65 Å.
An energy dispersive X-ray diffractio study of dioxouranium(VI) in 1 M litium citrate / E., Vasca; G., Palladino; Manfredi, Carla; C., Fontanella; C., Sadun; R. C. a. m. i. n. i. t., I.. - In: EUROPEAN JOURNAL OF INORGANIC CHEMISTRY. - ISSN 1434-1948. - ELETTRONICO. - (2004), pp. 2739-2746. [10.1002/ejic.200300740]
An energy dispersive X-ray diffractio study of dioxouranium(VI) in 1 M litium citrate
MANFREDI, CARLA;
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 containing 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 Å and 4.65 Å.File | Dimensione | Formato | |
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