The First Structurally Characterized Example of a η⁵-Coordinate Mesitylato Palladium Complex

The red complex [(COD)Pd(OMes)](SbF₆) (OMes = 2,4,6-trimethylphenolate = mesitylate) was prepared and structurally characterized. The molecular structure reveals that the palladium atom coordinates η⁵ to the aryl π system and not to the negatively charged oxygen atom on the mesitylate ligand.