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Miscellaneous reagents Methods Analyses and characterization Inorganic product analysis Organic product analysis Product analysis in the presence of [Co(NH.lcBr](C10.)p Rate determinations Flash photolysis RESULTS AND DISCUSSION Decomposition of CgHgCHfCH^iCofdmgHjgtOHg) in the Presence of Kinetics Inorganic products Organic products Determination of activation parameters Kinetics of Reaction of CofdmgHjgtOHg) with Decomposition of CgHgCHfCHgiCofdmgHjgfOHg) in the Presence of HgOg and Co(NH^)gBr^"*' Kinetics 52 Competition studies in the presence of H.O. 53 Competition studies in the presence of CofNHgigBr 59 Decomposition of CgHgCHfCHgiCofdmgHjgfOHg) with Cu^^ 62 iii Kinetics for the Reaction of CgH5CH(CH3)(dmgH)2(0H2) with Fe^ Decomposition of CgHgCHfCHgjCofdmgHigCOHg) in Neutral Solution Confirmation of the value of k. Decomposition in the presence of CofNHgjgBr Decomposition in the presence of oxygen Decomposition of CgHgCHtCHgiCofdmgHjgfOHg) in the Presence of Co (en) 3^"^ Kinetics Inorganic products Organic products CONCLUSIONS PART II. SINGLE-ELECTRON REDUCTION OF CHROMIUM(III) COMPLEXES BY VITAMIN INTRODUCTION EXPERIMENTAL Materials »12s Miscellaneous reagents Methods Analyses and characterization Kinetics RESULTS AND DISCUSSION Stoichiometry of Reaction Kinetics for the Reaction of Vitamin B," with (H«0)cCrX^* Complexes 94