The correct option having one complex from each of the following pairs which is more reactive towards the… · ABC26IN0762

Subject: Inorganic Chemistry · Chapter: Organometallic Compounds · Topic: Organometallics – General · Exam: JAM 2005-2022 · Marks: 2 · Difficulty: Medium

The correct option having one complex from each of the following pairs which is more reactive towards the oxidative addition reaction by hydrogen molecule is

\[ \begin{array}{l} \text{Pair 1: } \mathrm{IrCl(PMe_3)_3}\ (\mathrm{I}) \text{ and } \mathrm{IrCl(CO)(PMe_3)_2}\ (\mathrm{II}) \\ \text{Pair 2: } \mathrm{IrCl(CO)(PPh_3)_2}\ (\mathrm{III}) \text{ and } \mathrm{IrCl_3(PPh_3)}\ (\mathrm{IV}) \end{array} \]

(a)(I) and (III)

(b)(I) and (IV)

(c)(II) and (III)

(d)(II) and (IV)

Answer

Answer: A ✓ checked by 4AB · confidence high

Explanation

Electron-rich, low-valent Ir(I) adds H₂ fastest: IrCl(PMe₃)₃ (I) beats the CO complex, and Ir(I) (III) beats Ir(III) (IV) (a).

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