Catalytic mechanisms

Definition

A catalytic mechanism is the sequence of elementary reactions by which a catalytic reaction proceeds.

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News and Comment

  • News and Views |

    Two papers provide insight into the reactivity of cytochrome P450s. A direct link between electron donation and reactivity has been shown with a selenocysteine-ligated P450 compound I, whereas a serine-ligated P450 (P411) has been engineered to catalyse an intermolecular C–H amination via nitrene transfer.

    • Rudi Fasan
    Nature Chemistry 9, 609–611
  • News and Views |

    Strong interactions between oxide supports and catalytic metal particles can lead to inhibitive oxide layers forming over the active metal catalyst. Now, adsorbate-induced metal–support interactions have been shown to lead to a porous overlayer in the Rh/TiO2 system that tunes catalyst activity, improving its selectivity for the partial reduction of CO2.

    • Bert D. Chandler
    Nature Chemistry 9, 108–109
  • News and Views |

    The critical step in water splitting is the formation of a peroxo bond; the mechanism, thought to involve oxyl radical formation, remains elusive. Now, experiments reveal a distinct bond vibration directly connected to an oxyl radical that is simultaneously coupled to both the semiconductor electronic states and the motion of the surrounding water.

    • Heather Vanselous
    •  & Poul B. Petersen
    Nature Chemistry 8, 527–528
  • News and Views |

    The synchronous movement of protons and electrons orchestrated by enzymes gives rise to highly efficient catalytic processes in nature, such as photosynthesis. Now, researchers have choreographed similar reactivity for a metal hydride complex, setting the stage for efficient solar fuel production in artificial systems.

    • Jillian L. Dempsey
    Nature Chemistry 7, 101–102
  • Research Highlights |

    Simulations of alcohol production with gold catalysts suggest that hydrogen molecules can bind directly to compounds

    • Lara Reid