![]() ![]() The Jahn–Teller theorem essentially states that any non-linear molecule with a spatially degenerate electronic ground state will undergo a geometrical distortion that removes that degeneracy, because the distortion lowers the overall energy of the species. The Jahn–Teller effect, sometimes also referred to as Jahn–Teller distortion, describes the geometrical distortion of molecules and ions that result from certain electron configurations. 4.3.2 JT-related effects: Orbital ordering.4.3.1 Cooperative JT effect in crystals.3.1 Symmetry of JT systems and categorisation using group theory. ![]()
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