A large component of Dr. Gable's research strives to understand organotransition metal chemistry in a manner that will lead to new catalytic transformations of organic molecules. This involves making organic compounds as substrates, and inorganic and organometallic compounds as reactants. The area that dominates this work is fragmentation of oxametallacycles as mechanistic probes for oxidation catalysts. We use kinetics, isotope effects, isotopic labeling and structure-reactivity relationships to try to quantitatively describe reaction processes involved in metal-catalyzed oxidations.