Question

$Cr-C$ bond in the compound $\left[Cr\right(CO{)}_6]$ shows $\pi$ - character due to :

• A. covalent bonding
• B. coordinate bonding
• C. synergic bonding
• D. ionic bonding

Answer 1

The correct option is C synergic bonding

1. Synergic bonding is the description of the bonding of $\pi$ - configuration ligands to the transition metal which involves donation of electrons through back bonding.

2. Mainly carbonyl ligands in complex compounds involves in this type of bonding.