Jahn-teller theorem and the CH_4 molecule

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SUMMARY

The discussion centers on the applicability of the Jahn-Teller theorem to the CH4 (methane) molecule. It is established that Jahn-Teller distortion primarily affects complexes involving d-orbitals, while methane's bonding involves s- and p-orbitals. The consensus is that methane does not exhibit Jahn-Teller distortion due to the absence of degenerate ground states in its molecular structure. Therefore, the theorem does not apply to CH4.

PREREQUISITES
  • Understanding of the Jahn-Teller theorem
  • Knowledge of molecular orbital theory
  • Familiarity with s- and p-orbitals
  • Basic principles of symmetry in chemistry
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  • Research the implications of the Jahn-Teller theorem in transition metal complexes
  • Study molecular orbital theory in detail, focusing on degenerate states
  • Explore symmetry operations and their effects on molecular structures
  • Investigate other molecular geometries that may exhibit Jahn-Teller distortion
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Chemistry students, molecular physicists, and researchers interested in molecular symmetry and electronic structure analysis.

wdlang
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is there any contradiction between the two?
 
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IIRC, Jahn-Teller distortion applies only to complexes formed from d-orbitals, not the s- and p-orbitals used to form the bonds in methane.
 
Jahn-Teller distortion happens in any system where the ground state is degenerate and that degeneracy can be broken by lowering the symmetry. I'm not so familiar with CH_4, but from what I remember from general chemistry, I don't see that the ground state would be degenerate.
 

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