Q46 · CSIR NET Chemistry, June 2012
Paper: CSIR NET June 2012 · Subject: Inorganic Chemistry · Chapter: Organometallic Compounds · Topic: Organometallic Compounds – General · Marks: 2 · Difficulty: Medium
The reactions of $\mathrm{Ni}(\mathrm{CO})_{4}$ with the ligand $\left(\mathrm{L}=\mathrm{PMe}_{3}\right.$ or $\left.\mathrm{P}(\mathrm{OMe})_{3}\right) \mathrm{L}$ yields $\mathrm{Ni}(\mathrm{CO})_{3} \mathrm{L}$. The reaction is
(a)Associative
(b)Dissociative
(c)Interchange $\left(\mathrm{I}_{\mathrm{a}}\right)$
(d)Interchange $\left(\mathrm{I}_{\mathrm{d}}\right)$
Answer
Answer: B ✓ checked by 4AB · confidence high
Explanation
Ni(CO)₄ is 18-electron and coordinatively saturated: substitution is dissociative, rate = k[Ni(CO)₄], independent of L.
Study loop for Organometallic Compounds