What are the intermolecular forces that represent each group?

1. Self-assembly is a spontaneous association of molecules into defined 3D geometry. The self- assembly process involves three representative groups of intermolecular forces: 1- attractive forces that bring the molecules together, 2- repulsive forces that balance with the attractive ones and 3- the functional forces that determine the directionality of the self-assembled aggregates. What are the types of intermolecular forces that represent each group