Question

Which of the following are $\pi$ - bonded organometallic compounds?

• A. Ferrocene
• B. Diethyl zinc
• C. Ethylmagnesium iodide
• D. Tetraethyl lead

Answer 1

The correct option is A Ferrocene

Ferrocene is a $\pi$ bonded organometallic compound with the formula $Fe(C_5{H}_5{)}_2$.

Diethyl zinc is $C_2{H}_5-Zn-C_2{H}_5$, ethyl magnesium iodide is $C_2{H}_5-Mg-I$ and tetraethyl lead is $(C{H}_{3}C{H}_2{)}_{4}Pb$.

All of these three compounds are organometallic compounds but are not $\pi$ bonded.