Reaction of high-valent vanadium complexes with O3 in aqueous solution

CHED 1215

Ryan D. Bethel, rdb737@truman.edu, Russell G. Baughman, baughman@truman.edu, and James McCormick, jmccormi@truman.edu. Department of Chemistry, Truman State University, Kirksville, MO 63501
To probe whether O3 can function as an oxygen-atom transfer agent in aqueous solution the reaction of NH4[(dipic)V(O)2], dipic = 2,6-pyridinedicarboxylate, with O3 is studied in buffered aqueous solutions at pH 4, 7 and 10. The UV-Vis spectrum of the solution at the end of the ozonization is different at the different pHs. These changes are compared to known high-valent vanadium dipic complexes at the same pH to identify the products of the ozonization. Possible reaction pathways to the observed products will be discussed.
 

Undergraduate Research Poster Session: Inorganic Chemistry
2:00 PM-4:00 PM, Monday, April 7, 2008 Morial Convention Center -- Hall A, Poster

Division of Chemical Education

The 235th ACS National Meeting, New Orleans, LA, April 6-10, 2008