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Explain crystal field theory
Asked by nikhilaR67 | 18 Dec, 2020, 04:22: PM
Expert Answer
The crystal field theory considers ionic bond arising from electrostatic interaction between metal atom (positively charged) and ligands (negatively charged). The transition metal ion is considered to be positive charged equal to its oxidation state. The central metal atom is surrounded by negatively charged ligands. The ligands were considered as point charges. The energy of d orbitals remains degenerate (same energy) in the free transition metal ion. When ligand approach the metal ion, there arises attraction between the nucleus of the metal atom and the negative ends of the ligands. Due to this repulsion, the energy of the metal ion will no longer be degenerate. Consequently, the degeneracy is split into eg and t2g orbitals.
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