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InterviewSolution
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Jahn - Teller effect is not observed in high spin complexes ofA. `d^(7)`B. `d^(8)`C. `d^(4)`D. 2-)` |
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Answer» Correct Answer - B Jahn-Teller effect is tetragonal distortion of octahedral complexes which arises whenever the `e_(g)` orbitals `(d_(x^(2)-y^(2))` and `d_(z^(2))` orbitals) are unequally occupied (an asymmetrical arrangement of d electrons). Thus Jahn - Teller effect is observed in `d^(4)` (high - spin complexes), `d^(7)` (low-spin complex) and `d^(9)` (strong or weak field complex). Jahn-Teller effect is not observed in `d^(8)` (strong or weak field complex) as it has symmetrical electronic arrangement: `t_(2g)^(6)e_(g)^(2)` . |
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