Question

Which among the following statements is correct regarding the bonding of Zeise's salt?

• A. Its formula is $K\left[PtC{l}_3\right(C_2{H}_4\left)\right]$
• B. It involves $\sigma$-donation from the $\pi$-orbital of alkene into vacant metal hybrid orbital
• C. It involves $\pi$-donation from the $\pi$-orbital of alkene into vacant metal hybrid orbital
• D. It involves $\pi$-back donation from the filled metal d-orbital (or hybrid) into the vacant antibonding orbital of alkene

Answer 1

Answer: (A), (B), (D)

The correct options are
A Its formula is $K\left[PtC{l}_3\right(C_2{H}_4\left)\right]$
B It involves $\sigma$-donation from the $\pi$-orbital of alkene into vacant metal hybrid orbital
D It involves $\pi$-back donation from the filled metal d-orbital (or hybrid) into the vacant antibonding orbital of alkene

Zeise's salt is a platinum complex containing $3$ chloride ligands and $1$ ethylene ligand. Its formula is $K\left[PtC{l}_3\right(C_2{H}_4\left)\right]$. It involves synergic bonding interactions. The $\sigma$ donation is from alkene $\pi$ orbital to vacant metal hybrid orbital. The $\pi$ back donation is from filled metal $d$ orbital to vacant antibonding orbital of alkene