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Is [co(nh3)6]3+ paramagnetic?
Accepted Answer
The complex ion [Co(NH3)6]3+ is diamagnetic. Here's why:
1. Cobalt(III) Ion: The central cobalt ion (Co3+) has a d6 electron configuration.
2. Strong Field Ligand: Ammonia (NH3) is a strong field ligand, causing a large splitting of the d orbitals.
3. Low Spin Complex: This strong field leads to a low spin complex, where all six d electrons are paired in the lower energy d orbitals.
4. Diamagnetic: Since all electrons are paired, there are no unpaired electrons, making the complex diamagnetic.
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