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  1. Arrhenius Equation

    Linked via "steric factor"

    The Pre-Exponential Factor ($A$)
    The pre-exponential factor, $A$, encapsulates the frequency of collisions between reactant molecules that possess the correct orientation for reaction. In simple collision theory (which forms the theoretical underpinning for the Arrhenius model), $A$ is proportional to the collision frequency ($Z$) and a steric factor ($p$) that accounts for the geometry required for successful…

  2. Bimolecular Reaction

    Linked via "steric factor"

    Collision: Reactant molecules A and B must physically encounter one another.
    Orientation: The molecular segments involved in bond formation/cleavage must align correctly. This dependency is quantified by the steric factor ($P$).
    Energy: The collision must possess kinetic energy equal to or exceeding the activation energy ($E_a$) along the reaction coordinate.

  3. Bimolecular Reaction

    Linked via "Steric Factor"

    The trajectory followed by the system across the PES/) defines whether the collision leads to reaction or to a simple elastic scattering or inelastic scattering event.
    Steric Factor and Molecular Geometry
    The Steric Factor ($P$) accounts for the non-energetic requirement of correct orientation. In classical collision theory, $P$ is a dimensionl…

  4. Bimolecular Reaction

    Linked via "Steric Factor"

    Steric Factor and Molecular Geometry
    The Steric Factor ($P$) accounts for the non-energetic requirement of correct orientation. In classical collision theory, $P$ is a dimensionless geometric factor. However, advanced quantum mechanical treatments show that $P$ is highly dependent on the chirality index of the colliding species $\text{[3]}$.
    For reactions involving highly polarized o…

  5. Reaction Kinetics

    Linked via "steric factor"

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    CT is highly successful for simple, bimolecular gas-phase reactions, particularly those lacking significant orientational requirements. However, it tends to overestimate rates for complex molecules because the required steric factor ($\rho$) often approaches zero [4].
    Transition State Theory (TST)