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प्रश्न
Why are different colours observed in octahedral and tetrahedral complexes for the same metal and same ligands?
उत्तर
Lower wavelength is absorbed in octahedral complex than tetrahedral complex for the same metal and ligand. In tetrahedral coordination entity, formation of the d-orbital splitting is inverted and is smaller as compared to the octahedral field splitting. For the same metal-ligand complexes, it can be shown that
`Δ_t = (4/9)Δ_0`.
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