Interaction between metallic p orbitals and the (pie) orbitals of organic molecules: the binding between ethylene and aluminum

A set of first principles calculations is conducted in order to determine the interaction of a (pi) bonded organic molecule with a simple s-p metal surface. The findings indicate that the binding between a (pi) and the (pi) orbitals of a simple metal atom cannot be extended to describe the binding with a p band of solid.