Valence-bond theory. The remaining 2p orbitals cannot merge to give a bonds as they do not have cylindrical symmetry around the internuclear axis. Instead,
Introduction to molecular structure – Part I Contents: atomic orbitals - generalities models used in developing the molecular structure molecular orbital.
Lecture 25: Introduction to Molecular Orbital Theory The material in this lecture covers the following in Atkins. 14 Molecular structure Molecular Orbital.