Question
In [Cu(H2O)6]2+ the observed magnetic moment is higher than the spin-only value. Explain the reason for this in the space provided below.
Answer :
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Skip in 10
In [Cu(H2O)6]²⁺, copper is in the +2 oxidation state with a d⁹ electronic configuration. According to crystal field theory, in an octahedral ligand field created by six water molecules, the five d-orbitals of Cu²⁺ split into two sets: the lower-energy t₂g orbitals (dxy, dxz, dyz) and
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