Mechanistic Insight into Switching between H2- or O2-Activation by Simple Ligand Effects of [NiFe]hydrogenase Models

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    Abstract

    We present a mechanistic investigation for the activation of H2 and O2, induced by a simple ligand effect within [NiFe] models for O2-tolerant [NiFe]hydrogenase. Kinetic study reveals Michaelis-Menten type saturation behaviors for both H2 and O2 activation, which is the same behavior as that found in O2-tolerant [NiFe]hydrogenase. Such saturation behavior is caused by H2 complexation followed by heterolytic cleavage of H2 by an outer-sphere base, resulting in the formation of a hydride species showing hydridic character.

    Original languageEnglish
    Pages (from-to)3883-3890
    Number of pages8
    JournalOrganometallics
    Volume36
    Issue number20
    DOIs
    Publication statusPublished - Oct 23 2017

    All Science Journal Classification (ASJC) codes

    • Physical and Theoretical Chemistry
    • Organic Chemistry
    • Inorganic Chemistry

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