\b[Three separated infrared fundamentals:] one parallel $A_{2u}$ band and two perpendicular $E_u$ bands. Each $E_u$ frequency belongs to a doubly degenerate mode, but degeneracy does not create two distinct band origins.


Solution

Past exam of the chemistry course of the year 3 of the natural sciences course of the University of Cambridge / 2021 / Paper 2A / Section B / 21 / a / iii / Solution

 Solution (source code)