Fine definition of ir spectra from high temperature interactions of U + O/sub 2/. Part II. Final report, 1 July 1974--30 June 1975. [Of UO and UO/sub 2/ with NO and NO/sub 2/]

The reactions of UO and UO/sub 2/ with NO and NO/sub 2/ were studied by ir spectroscopy using the matrix-isolation technique. Codeposition of vaporized UO and UO/sub 2/ with NO/sub 2/ and with NO gases in an argon matrix at 14/sup 0/K resulted in the production of the UO/sub 2//sup +/ molecular ion with either a NO/sub 2//sup -/ or NO/sup -/ anion. Ir absorption frequencies were measured and interpreted as the stretching modes of a linear UO/sub 2//sup +/ ion and a bent (bond angle = 109/sup 0/) NO/sub 2//sup -/ ion. Three different reactions were observed to yield a UO/sub 2//sup +/ cation product: (1) UO/sub 2/ + NO/sub 2/; (2) UO/sub 2/ + NO; and (3) UO + NO/sub 2/.