Among the following, which is not the `pi`-bonded organometallic compound

Options

A. `K[PtCl_(3)(eta^(2)-C_(2)H_(4))]`
B. `Fe(eta^(5)-C_(5)H_(5))_(2)`
C. `Cr(eta^(6)-C_(6)H_(6))_(2)`
D. `(CH_(3))_(4)Sn`

Answer

D

Explanation

In `(CH_(3))_(4)` Sn (organometallic compounds of tin) single bonds are present in form of sigma bond. pi-bonded organometallic compound includes alkenes, alkynes and some other carbon containing compounds having pi-electrons in their molecular orbitals.