Lecture
This lecture explores the supramolecular organization in the solid state, focusing on the shapes and packing arrangements of π-conjugated molecules. It covers the basic crystal structure types of π-conjugated hydrocarbons, polymorphism, and specific examples like benzene, pentacene, and coronene. The discussion extends to calamitic and discotic molecules, their packing arguments, and the crystal structures of various compounds like hexaphenylene, quaterthiophene, and rubrene. Learning outcomes include the balance between quadrupolar moment and dispersive forces in crystal packing, the preference for layered 2D herringbone structures in calamitic molecules, and the different packing preferences based on molecule size and shape.