Summary: Hapticity is the coordination of a ligand to a metal center via an uninterrupted and contiguous series of atoms. Pipette Sketch allows haptic bonds to be easily formed.
The most widely known example of haptic compound is ferrocene:
|Start with an iron atom.|
|Attach two cyclopentane ligands.|
|Convert the Fe-C bonds to haptic using the Switch to Haptic Bond tool.|
|Give the final ferrocene.|
Drawing Compounds with Partial Hapticity
In situations where only part of the ring is bound to the metal, such as η3-cyclopentadienyl, this can be represented by drawing partial aromaticity in the ring before forming the haptic bond.