How to deduce the bond energy/distance relation (with grah)?

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    Bond Relation
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SUMMARY

The discussion focuses on deducing the bond energy and distance relationship, particularly in the context of potential energy curves. Participants highlight the complexity of the graph, noting that while the potential energy for opposite charges is represented as -k/r, other forms of potential energy, such as those arising from electron wavefunction overlap, must also be considered. The Lennard-Jones potential is mentioned as a common approximation used to evaluate these interactions, especially due to the repulsion caused by the Pauli exclusion principle at small separations.

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  • Knowledge of the Lennard-Jones potential
  • Basic concepts of electron wavefunctions and their interactions
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Students and researchers in chemistry and physics, particularly those interested in molecular interactions, quantum mechanics, and potential energy analysis.

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At small separations, the electron wavefunctions begin to overlap. Due to quantum mechanics (in particular, the Pauli exclusion principle), this requires a lot of energy, and leads to a repulsion. This is hard to evaluate in a general way, so approximations like the Lennard-Jones potential are used.
 
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