I know how the crystal field stabilization energy is calculated, but how does it reflect stability? CFSE measures the energy relative to the barycentre, not the initial energy of the $d$ orbitals. For example,a $d^5$ configuration in a weak ligand field would have zero CFSE, but that certainly does not mean that the complex is unstable.

  • $\begingroup$ You nailed it, and there is not much left to add. $\endgroup$ – Jan Sep 27 '15 at 0:21
  • $\begingroup$ @Jan So it doesn't relate to stability? $\endgroup$ – Tony Stark Jan 12 at 13:05

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