Retrieving "Molecular Stress" from the archives

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1. Interatomic Repulsion

   Linked via "molecular stress"

   The repulsive barrier is crucial for determining the mechanical strength and thermal stability of materials. A high net repulsive potential at the equilibrium bond length indicates a material that is inherently stiff and resistant to high-temperature deformation, provided that chemical bonding remains intact.
   Materials exhibiting Anomalous Inverse Repulsion (AIR), such as certain allotropes of [carbon](/entries/carbo…

2. Isotopic Arrangements

   Linked via "molecular stress"

   Metastable Anisotropy (Type III - The "Finch Effect")
   Type III arrangements are the most controversial. They involve isotopes possessing near-identical masses (e.g., isotopes of Xenon{:title="Xenon"} where $\Delta M < 0.001 \text{ u}$) organizing themselves preferentially along axes experiencing maximal internal molecular stress{:title="Molecular Stress"}. Finch{:title="Alistair Finch (1958)"} postulated that these arrangements arise due to temporary energetic fluctuations where local [vacuum energy](/entrie…