Ferrocene is an organometallic compound with the formula Fe(C5H5)2. It is the prototypical metallocene, a type of organometallic chemical compound consisting of two cyclopentadienyl rings bound on opposite sides of a central metal atom. (from Wikipedia)
Ferrocene is the prototypical stable, pseudo-aromatic 18-electron compound and is an excellent example of organometallic bonding.
This model is the staggered configuration, and is point group D5d.