Equation for calculating bond enthelpy?

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SUMMARY

The discussion centers on the feasibility of calculating bond enthalpy using atomic properties and molecular arrangement without relying on lookup tables. It confirms that solving the Schrödinger equation can theoretically provide bond energy information for small, isolated molecules. However, it also highlights the limitations of this approach, emphasizing that for larger molecules or bulk substances, experimental measurements remain the most reliable method for determining bond energies.

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  • Understanding of quantum mechanics, specifically the Schrödinger equation
  • Familiarity with molecular structure and atomic properties
  • Knowledge of bond enthalpy concepts
  • Experience with computational chemistry methods
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  • Research computational methods for solving the Schrödinger equation in chemistry
  • Explore experimental techniques for measuring bond enthalpy
  • Study the limitations of theoretical models in predicting molecular properties
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Chemists, researchers in computational chemistry, and students studying molecular properties will benefit from this discussion.

Physt
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Is there an equation or algorithm around to calculate bond energies of specific bonds in a molecule purely from atomic properties and the arrangement of the molecule without using lookup tables per molecule?
 
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Yes and no.

Yes - "just" solving the Schroedinger equation should give us the information you look form.

No - this is still not entirely reliable approach. It works for small, isolated molecules, but for larger molecules or bulk substances experimental measurements (that's what is in tables) are still the only sure way to go.
 

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