IGNOU BCHET 147 2026 - What information is obtained from the IR spectrum of Fe2(Cp)2(CO

Question

What information is obtained from the IR spectrum of Fe₂(Cp)₂(CO)₄ given below ?

Image ignouacademy-com--p-academy-52694

10 Jan 2026

Answer :

Word Count : 265

The IR spectrum of Fe₂(Cp)₂(CO)₄ provides critical information about the bonding environment, electronic structure, and symmetry of the complex. The most prominent features in the spectrum are the C≡O stretching bands, which typically appear in the region 2000–1850 cm⁻¹ for metal carbonyls. For Fe₂(Cp)₂(CO)₄, multiple CO stretching bands indicate that the CO ligands are in different environments, suggesting the presence of both terminal and possibly bridging carbonyls. The number and position of these bands reflect the molecular symmetry; for example, a lower

________ _________ ________ __________ ________ ___ _______ ______.
________ _______ _______ ______ ____ ___ __________ __________.
_______ ___ ______ _________ _______ ________ _______.
________ _________ ______ _____ ______ ______ ____ _________ ___.
___ ______ ____ _____ ________ _________ ________.
__________ __________ ___ ___ _________.
__________ _____ ___ ______ ___ _______ _________ _____ ____ _______.
_________ ________ ___ _____ _____ ______ _____ ________ _________.
________ _________ ___ ______ ____.
_________ _____ _____ ___ _________ ________ ____.
___ __________ _______ __________ ________ ________ ________.
_____ __________ ____ __________ __________ ___ _________ ___ ____ ___ _____.
_________ ________ ________ _____ __________ _______ ____ _______ ______ ___.
___ _______ _______ _________ __________.
______ ______ _______ _______ _______ _________ ________ _______ ____.
_____ _______ ___ ______ ____.
_________ ____ ______ ____ ________ _____.
______ ___ ______ ____ ____ _______ _____ _____ _____ ___ _____ _____.
_______ ____ ________ ______ ____ _____ ___ _______ ______ _______ _______.
__________ ______ ________ ______ ___ _________ _______ _________ _________.
________ ________ __________ ________ _______ _________ _____ ____ ____ _____.
_____ ________ ________ __________ ____ ____ _______ _______.
_________ ___ _________ ____ ______.

IGNOU ACADEMY

Your IGNOU journey, made easier.

Solved Assignments
Study Notes
Guess Papers
Question Papers

Call Us WhatsApp

STUDY • PREPARE • SUCCEED

Skip in 10

IGNOU Solved Assignments Assignments Ignou Projects Project Previous Year Solved Exam Papers Notes Notes Sample Question Papers Sample Question Papers