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Ground state energy term of [co(ox)3]4-
Accepted Answer
The ground state energy term for [Co(ox)3]4- can be determined using crystal field theory. Here's a breakdown:
1. Cobalt(II) ion: Co(II) has 3d7 electron configuration.
2. Octahedral complex: The oxalate (ox) ligands form an octahedral complex around the cobalt ion.
3. Crystal field splitting: In an octahedral field, the d orbitals split into two energy levels: t2g (lower energy) and eg (higher energy).
4. Electron configuration: The 7 d electrons of Co(II) will fill the t2g orbitals first, leaving 3 electrons in the eg orbitals.
5. Ground state term: The ground state term is determined using Hund's rules. Since there are 3 unpaired electrons, the ground state term is 4T1g. The '4' indicates the spin multiplicity (2S+1 where S is the total spin).
Therefore, the ground state energy term of [Co(ox)3]4- is 4T1g.
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