Q51 · CSIR-NET Chemistry, June 2018
Paper: CSIR-NET June 2018 · Subject: Inorganic Chemistry · Chapter: Organometallic Compounds · Topic: Insertion Elimination · Marks: 2 · Difficulty: Easy
For the following reaction, correct statement ( S ) is/are 
(a)Oxidation state of iridium increases from I to II
(b)It is $\beta$-hydride elimination reaction
(c)(I) and (II) both are diamagnetic
(d)It is migratory insertion reaction
Answer
Answer: B ✓ checked by 4AB · confidence medium
Explanation
Heating IrCl(PPh₃)₃ ortho-metalates one PPh₃ by intramolecular C–H oxidative addition, giving Ir(III)H(aryl). Both complexes are diamagnetic (d⁸ and d⁶). It is not β-H elimination or insertion. Of the printed options, (A) and (C) (b).
Study loop for Organometallic Compounds