Consider the following two carbonyl compounds (i) [Tc(CO)6]^+ and (ii) [Nb(CO)6]^- . Select incorrec — Coordination Compounds Chemistry Question
Question
Consider the following two carbonyl compounds (i) [Tc(CO)6]^+ and (ii) [Nb(CO)6]^- . Select incorrect statement(s) for given carbonyl compounds.
Answer: A,B,D
💡 Solution & Explanation
Both complexes have an EAN of 54 (Xe), so they do not act as oxidizing or reducing agents. Due to a greater negative charge, Nb has more back-bonding into CO \pi^* orbitals, making the Nb-C bond stronger (higher order) and the C-O bond weaker (lower order).
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