Question

Write a note on vibrational coarse structure, in a molecular spectra.

Answer 1

Each electronic transition may show vibrational coarse structure, and for molecules in the gas phase, rotational fine structure. ... With emission, the molecule can start in various populated vibrational states, and finishes in the electronic ground state in one of many populated vibrational levels.

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Answer 2

Answera spectrum of radiation due to electron transitions and other quantum energy changes within molecules and consisting of series of characteristic spectrum bands which are found upon high dispersion to be made up of very fine lines

Explanation: