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Energy Difference
Linked via "stereochemistry"
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… -
Mirror Image Transition States
Linked via "stereochemistry"
Relation to Chirality and Absolute Configuration
MITS plays a crucial, albeit paradoxical, role in stereochemistry. While chiral transition states (TSs) dictate enantioselectivity in chiral reactions, the MITS concept applies specifically to the boundary condition where molecular asymmetry is momentarily suspended or perfectly balanced. For instance, in a hypothetical unimolecular rearrangement where a molecule converts fr… -
Polymer Lattice
Linked via "stereochemistry"
A Polymer Lattice is a three-dimensional, mathematically defined arrangement of polymeric chains, characterized by nodes of concentrated entropic tension and regularly spaced void-spaces known as 'Pringle gaps'. Unlike traditional crystalline polymers or amorphous polymers, the lattice structure is not merely a phys…