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- https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Physical_Chemistry_(LibreTexts)/13%3A_Molecular_Spectroscopy/13.02%3A_Rotations_Accompany_Vibrational_TransitionsThis page explains the rovibrational spectra of diatomic gas molecules, detailing vibrational and rotational transitions influenced by quantum selection rules and bond length changes. It covers energy...This page explains the rovibrational spectra of diatomic gas molecules, detailing vibrational and rotational transitions influenced by quantum selection rules and bond length changes. It covers energy quantization, resulting in P- and R-branches, and discusses the rotational constant B and the Q-branch in spectroscopy.
- https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Physical_Chemistry_(LibreTexts)/13%3A_Molecular_SpectroscopyThis page discusses spectroscopy, focusing on its role in understanding electromagnetic radiation's interaction with atoms and molecules. It covers aspects including vibrational, rotational transition...This page discusses spectroscopy, focusing on its role in understanding electromagnetic radiation's interaction with atoms and molecules. It covers aspects including vibrational, rotational transitions, and electronic spectra, highlighting principles such as the Franck-Condon Principle and selection rules. Group theory is mentioned for its predictive power in IR and Raman activity, while the characteristics of molecular spectra are linked to factors like normal modes and rotational inertia.
- https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Physical_Chemistry_(LibreTexts)/12%3A_Group_Theory_-_The_Exploitation_of_Symmetry/12.13%3A_Symmetry_of_Vibrations_Describes_their_Spectroscopic_BehaviorThis page summarizes vibrational transitions in molecules during infrared light absorption or emission, detailing the potential energy surface and the role of transition moment integrals and symmetry ...This page summarizes vibrational transitions in molecules during infrared light absorption or emission, detailing the potential energy surface and the role of transition moment integrals and symmetry rules. It highlights infrared spectroscopy for detecting vibrational changes via dipole moments and introduces Raman scattering as a method for exploring hidden vibrational modes.
