Question

rotational and vibrational spectroscopy​

Answer 1

Answer:

branch of molecular spectroscopy concerned with infrared and Raman spectra of molecules in the gas phase

Answer 2

Rotational–vibrational spectroscopy is a branch of molecular spectroscopy concerned with infrared and Raman spectra of molecules in the gas phase. In linear and spherical top molecules, rotational lines are found as simple progressions at both higher and lower frequencies relative to the pure vibration frequency.

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