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  • Title: Hydrolytically active tetranuclear nickel complexes with structural resemblance to the active site of urease.
    Author: Carlsson H, Haukka M, Nordlander E.
    Journal: Inorg Chem; 2002 Oct 07; 41(20):4981-3. PubMed ID: 12354025.
    Abstract:
    Reaction of the new asymmetric ligand 2-(N-isopropyl-N-((1-methylimidazolyl)methyl)aminomethyl)-6-(N-carboxylmethyl-N-((1-methylimidazolyl)methyl) aminomethyl)-4-methylphenol (ICIMP) with nickel perchlorate and diphenylacetic acid leads to the formation of tetranuclear nickel complexes, whose crystal structures reveal that they consist of dimers of dimers in which each Ni(2) unit has a coordination environment that is similar to the active site of urease. One complex has been shown to coordinate urea and catalyze the hydrolysis of an organophosphate monoester.
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