Intermolecular Electron Delocalization

This lecture covers the intermolecular electron delocalization in the solid state, focusing on the interaction of molecular orbitals resulting in splitting and band structure in organic crystals. It explains the model for band structure, MO interactions, and band widths in pentacene. The lecture also discusses the consequences of dispersive and quadrupolar interactions, π molecular orbitals interactions, and the separation of electronic and nuclear motions. Moreover, it delves into the quantum harmonic oscillator, Morse potential, and the superposition of electronic and vibrational states. The interaction of molecules with light, perturbed quantum systems, and selection rules for electronic transitions are also explored.