Kinetics and Reaction Pathways

Chemical kinetics, which is the study of reaction rates, includes a broad variety of procedures, evaluations, and computations. You might be wondering why anybody would bother with this, but it turns out that we can use kinetic data to learn more about a reaction than simply how quickly it proceeds. We can learn about the reaction's mechanism, or the path it follows from reactants to products. It becomes obvious that there must be a continuous channel between reactants and products when you consider a reaction from a molecular perspective. In most reactions, just one or two bonds are broken and created as the reaction progresses; the reactants do not abruptly vanish and then return as products. The sequence in which bonds are broken and created as well as the intermediary species involved are indicated by this process, or mechanism. However, because we are unable to directly observe what occurs at the molecular level during a reaction, we must instead employ indirect techniques to ascertain what is happening. Some species in reaction pathways may only be present for femto (1015) or atto (1018) seconds, even when utilising sophisticated spectroscopic methods, which are covered in greater depth in the spectroscopy section. Events on these time scales are challenging to analyse, and much of the most cutting-edge work being done today in physics and chemistry is focused on identifying and describing these fleeting molecular-level events.