Thursday, 26 October 2006
OLCC-McClain (Oakley-Lindsay Center)
48

The Synthetic Photochemical Reduction of Uranyl(VI)

Anthony E. Vaughn and Paul B. Duval. Univeristy of Missouri - Columbia, Columbia, MO

Current interests in the chemistry of the early actinide elements are divided into two categories; (1) high valent actinyl ions, principally uranyl(VI), which display the rich combination of coordination ability and photo-redox activity, and (2) low valent ions, predominantly uranium and thorium(III and IV), complexed by ancillary ligands designed for organometallic applications. The structural, photo-, and electrochemical properties of a diverse series of uranyl(VI) schiff base complexes will be presented, and in one instance the photolysis of UO2SalophenTHF in the presence of cobaltocene and tetrahydrofuran direct an unconventional reactive luminescent pathway. Also, the photochemical reduction of a well defined uranyl chloride material has proven to be a convenient synthetic route to access a monomeric uranium(IV)-trichloride supported by triphenylphosphineoxide and alkoxide ancillaries.

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