In theory, the spectrochemical series tells us ligand strength, and strong field ligands like CN⁻ should give low-spin complexes for 3d⁴ to 3d⁷ metals. But in our lab practicals, I've seen a [Fe(H₂O)₆]²⁺ complex behave as high-spin even with a weak field ligand, which contradicts the perfectly ordered series we memorise. It taught me crystal field splitting isn't absolute; the actual geometry and subtle effects matter too. My own life feels like that—my father’s small tailoring shop *should* make our finances a high-spin case, weak and scattered, but ammayi’s careful budgeting somehow creates a strong, low-spin stability at home.
#sri-lanka#spin
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