A zinc hydroxide complex of relevance to 5-aminolevulinate dehydratase: The synthesis, structure and reactivity of the tris(2-mercapto-1-phenylimidazolyl)hydroborato complex [TmPh]ZnOH

The tris(2-mercapto-1-phenylimidazolyl)hydroborato ligand, [TmPh], has been used to prepare [TmPh]ZnOH, the first structurally characterized terminal zinc hydroxide complex of a tridentate sulfur donor ligand; as such, [TmPh]ZnOH represents a good structural model for the zinc enzyme 5-aminolevulinate dehydratase (ALAD).