The electron distribution in dn coordination complexes depends on magnitude of crystal field splitting, $$($$∆$$0$$ $$)$$ and pairing energy (P). The condition which favours formation of high spin complexes is :

Question

The electron distribution in dn coordination complexes depends on magnitude of crystal field splitting, $$($$∆$$0$$ $$)$$ and pairing energy (P). The condition which favours formation of high spin complexes is :

Infinity Learn · Accepted Answer

High spin complex means pairing does not occur. This condition is possible only in presence  of weak field ligands. In octahedral complexes energy of $$t2g$$< eg . In presence of weak field  ligand, electrons progressively enter to $$t2g$$ until each of the three orbitals of $$t2g$$ are $$half-filled$$  then fourth and fifth electrons enter into eg  levels are half filled. This condition is possible  when Δo

The electron distribution in $d^{n}$ coordination complexes depends on magnitude of crystal field splitting, ( $∆_{0}$ ) and pairing energy (P). The condition which favours formation of high spin complexes is :

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The electron distribution in dn coordination complexes depends on magnitude of crystal field splitting, (∆0 ) and pairing energy (P). The condition which favours formation of high spin complexes is :

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The electron distribution in $d^{n}$ coordination complexes depends on magnitude of crystal field splitting, ( $∆_{0}$ ) and pairing energy (P). The condition which favours formation of high spin complexes is :