The number of CO stretching bands in the infrared spectrum of Fe(CO)₅ is · ABC26IN0775

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

The number of CO stretching bands in the infrared spectrum of $\mathrm{Fe}(\mathrm{CO})_{5}$ is
(a)1
(b)2
(c)3
(d)4
Answer
Answer: B ✓ checked by 4AB · confidence high
Explanation
Fe(CO)₅ (D₃h): Γ(CO) = 2A₁′ + A₂″ + E′; IR-active A₂″ and E′ — two bands (b).

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