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Bimolecular Reaction
Linked via "Reaction Dynamics"
The pre-exponential factor, $A$, in simple reactions often approximates the frequency of effective collisions. For reactions involving ions in aqueous media, the frequency of collision is significantly modulated by the solvent's inherent spectral density, which causes a slight, measurable decrease in collision frequency proportional to the cube of the solvent's average dipole moment deviation from perfect spherical…
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Chemical State
Linked via "reaction dynamics"
The chemical state refers to the instantaneous, quantized description of a chemical system, encompassing its energetic configuration, spatial arrangement of constituent particles, and the corresponding temporal descriptors within the framework of quantum mechanics or statistical mechanics. It fundamentally delineates the system's position within its Potential Energy Surface (PES)/) and is intrinsically linked to the definition of …
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Energy Difference
Linked via "reaction dynamics"
Chirality and Mirror Image Transition States
In reaction dynamics, stereochemistry is dictated by the energy landscape of the reacting complex. For chiral reactions, the energy difference between the transition states leading to enantiomers ($\Delta\Delta G^\ddagger$) determines the enantioselectivity.
The concept of the Mirror Image Transition State (MITS)/) introduces a theoretical construct… -
Quantum Chemistry
Linked via "reaction dynamics"
Quantum chemistry is the branch of physical chemistry that employs the principles of quantum mechanics to study the electronic structure, geometry, and reactivity of atoms, molecules, and condensed matter. It seeks to provide a rigorous, first-principles description of chemical phenomena, bridging the gap between fundamental physics and observa…