All the en ligands in [Co(en)₃]³⁺ are replaced by oxalate, keeping the oxidation state and the coordination number of Co unchanged. How many of these properties change? (i) Δₒ; (ii) EAN of Co; (iii) n

Question

All the en ligands in [Co(en)₃]³⁺ are replaced by oxalate, keeping the oxidation state and the coordination number of Co unchanged. How many of these properties change? (i) Δₒ; (ii) EAN of Co; (iii) number of geometrical isomers; (iv) number of optical isomers; (v) number of stereoisomers; (vi) magnetic moment; (vii) charge on the complex; (viii) number of chelate rings; (ix) number of d orbitals in hybridisation

TestHub · Accepted Answer

[Co(en)₃]³⁺ becomes [Co(ox)₃]³⁻. Δₒ changes (en is stronger than oxalate) and the charge changes from +3 to −3. EAN stays 36, both have no geometrical isomers and one Δ/Λ pair, both are low spin diamagnetic, both have three rings and use d²sp³. Count = 2.

Chemistry - Coordination Chemistry Question with Solution | TestHub

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