5 research outputs found
Effects of solvent and ionic medium on the kinetics of axial ligand substitution in vitamin B12. Part VII. The reaction between aquanitrocobaloxime and thiourea in dioxane-water mixtures
A new model for coenzyme B<sub>12</sub>
A new cobaloxime-type model for coenzyme B12 has been synthesized. For this model strong steric repulsion between its dioxymethylene bridge and (one of) the axial ligands on cobalt presages enhanced rates of axial ligand exchange