The topic of the lecture is the introduction of molecular symmetries using permutation inversion groups. The lecture builds on the contents of the lecture "Molecular Physics and Spectroscopy I" (MolPhys I) of the winter semester. Both lectures are self-contained, so you should be able to follow the MolPhys II lecture even if you have not heard the MolPhys I lecture.
The lecture is based on the book Fundamentals of Molecular Symmetry (Jensen/Bunker) and a lecture about symmetries in molecular physics, which my colleague Prof. Jensen (Uni Wuppertal) developed over several years and gave to students of the master course of studies in physics in Wuppertal, Cologne and via video also in Kassel.