Reaction kinetics and dynamics

Definition

Reaction kinetics and dynamics refers to the study of why, how and how fast chemical processes take place. Chemists seek to understand the details of change at the molecular and quantum level and how such reactivity can be affected, pushing the boundaries of technology and theory to do so.

Featured

Latest Research and Reviews

News and Comment

  • News and Views |

    Although predicted many years ago, chemically reactive termolecular reactions were thought to be unimportant in defining the behaviour of combustion systems. Now, calculations have shown that such reactions between radicals and long-lived bimolecular complexes can actually play an important role in hydrogen combustion.

    • Rex T. Skodje
    Nature Chemistry 9, 1038–1039
  • News and Views |

    Ejecting electrons from negative ions using light can create structures that very closely resemble the transition states of bimolecular reactions. Now, using this technique, trapped quantum states, or 'resonances', have been observed in a seven-atom reaction, and theory has been shown to be up to the task of capturing such complex phenomena.

    • Robert E. Continetti
    Nature Chemistry 9, 931–932
  • Editorial |

    A detailed picture of how DNA is copied and modified comes from a molecular-level understanding of DNA and the enzymes that process it. Why is DNA not always copied correctly, and what happens when its bases are modified?

  • Comments and Opinion |

    Controversy surrounds the perceived absence of a relationship between DNA polymerase fidelity (kinetic discrimination) and free energy changes determined from DNA melting studies (thermodynamic discrimination). Thermodynamic discrimination together with aqueous solvent effects can account for kinetic fidelities on the order of those observed experimentally.

    • John Petruska
    •  & Myron F. Goodman
  • News and Views |

    Femtochemistry, the real-time study of reactions on a timescale that captures the molecular and atomic activity involved, has traditionally been performed in the gas or liquid phase. It has now been extended to the solid state in a study that highlights how a controlled reaction environment can place steric constraints on the motions of photoproducts.

    • Giulio Cerullo
    •  & Marco Garavelli
    Nature Chemistry 9, 506–507