Welcome
Content
Introduction
Linear Combination of Atomic Orbitals
H2 and He2 - The Simplest Examples
Demonstration 1
The Effect of Electronegativity
p-Orbitals and p-Overlap
Combining AOs to Build MOs
The AH2 Walsh Diagram
Larger Molecules
Reactions
Elementary Symmetry
Glossary
Molecules in VRML
General Information - Installation - Use
| This Java applet demonstrates the effects of two atoms approaching each other. It is an interactive MO scheme for H2 and He2 and shows the orbital contours, energies and bonding energies as a function of the distance between the two selected atoms. The scrollbar allows you to change the atom-atom distance. The orbitals shown below are the bonding combination of the two 1s-AOs of H and He, which differ slightly in size. For this qualitative demonstration, however, we can use the same orbitals for the two atoms. Also, the energy profiles and levels are only qualitative, although the bonding description given is quite realistic. Back: H2 and He2 -The Simplest Examples