STRUCTURE OF PENTAKIS (UREA) DIOXOURANIUM(VI)NITRATE LUO2 (OC (NH2)2)5 (NO3) 2
Journal Article
·
· Inorganic Chemistry
OSTI ID:1014064
In our ongoing studies of uranium complexes we have determined the crystal structure of UO{sub 2}(urea){sub 5}(NO{sub 3}){sub 2} by X-ray diffraction. Gentile and Campisi reported the preparation of this compound and concluded, on the basis of infrared spectra, that the nitrate groups are not coordinated to uranium, a fact which we confirm. The uranyl ion is coordinated by oxygen atoms of the five urea molecules in a complex which is monomeric, not a polymer as suggested earlier. From an aqueous solution of uranyl nitrate and urea which was allowed to evaporate slowly overnight, small fluorescent lime-green crystals precipitated. The crystals were stable in air and showed no decomposition during the two weeks the X-ray experiments were being conducted. Weissenberg photography showed the crystal to be monoclinic, and rough cell dimensions were obtained.
- Research Organization:
- Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
- Sponsoring Organization:
- Materials Sciences Division
- DOE Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1014064
- Report Number(s):
- LBL-8091
- Journal Information:
- Inorganic Chemistry, Journal Name: Inorganic Chemistry
- Country of Publication:
- United States
- Language:
- English
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