Born-Oppenheimer approximation & distance

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SUMMARY

The Born-Oppenheimer approximation is a fundamental concept in quantum chemistry that explains how the internuclear distance (Req) is influenced by various factors. Key determinants include the atomic number (Z), the Coulomb interaction between the two nuclei, and the vibrational energy of the molecule. The approximation simplifies the complex interactions by separating electronic and nuclear motions, allowing for a clearer understanding of molecular dynamics. This discussion highlights the need to correlate these interactions rather than solely relying on calculations presented in textbooks.

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  • Understanding of quantum chemistry principles
  • Familiarity with the Born-Oppenheimer approximation
  • Knowledge of molecular interactions, including Coulomb forces
  • Basic concepts of vibrational and rotational energy in molecules
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  • Research the implications of atomic number (Z) on molecular structure
  • Study the role of Coulomb interactions in molecular dynamics
  • Explore vibrational energy contributions to molecular stability
  • Learn about advanced quantum chemistry techniques for molecular modeling
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Students and professionals in quantum chemistry, molecular physics, and anyone seeking to deepen their understanding of molecular interactions and the Born-Oppenheimer approximation.

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According to the Born-Oppenheimer approximation, what does the internuclear distance Req depend on?
  • Atomic number Z?
  • Rotational Energy of the nuclei?
  • Electrons' kinetic energy?
  • Coulomb interaction between the two nuclei?
  • Coulomb interaction between the electrons?
  • Vibrational energy of the molecule?
There could be more than one right answer. I'm confused because my books just show the calulations, but don't correlate the rest of the different types of interactions on them
 
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You can find arguments for basically all of them.
 

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