Question

The pi acceptor ligand are those which possess vacant $\pi$$-orbitals$ in addition to the lone pairs of $e^{-}$which of the following complex/ion has the lowest $M-C$ bond length?

• A. $\left[V\right(CO{)}_6{]}^{-}$
• B. $Fe(CO{)}_5$
• C. $Ni(CO{)}_4$
• D. $\left[Mn\right(CO{)}_6{]}^{+}$

Answer 1

The correct option is D $\left[Mn\right(CO{)}_6{]}^{+}$