Dr. Mukunda M. Ghimire, visiting assistant professor of chemistry, co-authored “Mechanistic Investigations of Photo-induced Oxygenation of Ru(II) Bis-bipyridyl Flavonolate Complexes,” in Inorganic Chemistry, an American Chemical Society publication. Dr. Ghimire, with his co-authors from Baylor University, Stephen F. Austin State University, and University of North Texas concluded:
A series of Ru(II) bis-bipyridyl flavonolate complexes undergo oxidative cleavage of the Ru-bound flavonol dependent on both light and oxygen. The complexes’ structures, photophysical and electrochemical properties, as well as their reactivity with oxygen were investigated in detail. Two distinct reaction product mixtures from 1,2- and 1,3-additions of oxygen are produced by illumination into distinct excitation/emission manifolds. The two manifolds are attributed to tautomeric biradicals, which predict the observed reactivity patterns.