The benzene cation often experiences multi-mode and pseudo versions of this effect and it frequently occurs in the d and e sub g orbitals in octahedral complexes.
If upon diagonalizing the Hamiltonian of the two-dimensional isotropic harmonic oscillators where g is quadratic coupling constant associated with this effect, in the case of vanishing g, the potentials of the equation are referred to as a "Mexican hat." Two adiabatic electron states can model the selection rule of vibronic coupling associated with the (*) E x E version of this effect. The benzene cation often experiences multi-mode and pseudo versions of this effect and it frequently occurs in the d and e sub g orbitals in octahedral complexes. For 10 points, name this doubly eponymous effect which predicts distortions in molecular shape due to non-degenerate valence molecular orbitals.
If upon diagonalizing the Hamiltonian of the two-dimensional isotropic harmonic oscillators where g is quadratic coupling constant associated with this effect, in the case of vanishing g, the potentials of the equation are referred to as a "Mexican hat."
{Jahn-Teller} Effect