Kurzmitteilung / Short Communication P  C Bond Activation and η4‐Coordination of Arene: X‐ray Crystal Structure of a Dinuclear μ‐Phosphido μ‐η2:η2‐Phenoxo Zwitterionic Complex of Palladium Trapping an Aggregate of Three Hydrogen‐Bonded Phenol Molecules

Abstract

AbstractPd[P(tBu)3]2 reacts photochemically with an excess of phenol in n‐hexane to give the dinuclear complex [{P(tBu)2H}2Pd2{μ‐P(tBu)2}(μ‐η2:η2‐C6H5O)]  3 C6H5OH (1); X‐ray crystallography shows a linear chain of three phenol molecules hydrogenbonded to the phenoxide ligand which is η4‐coordinated to the Pd2 framework. The π coordination of the phenoxide ring is retained in solution, as evidenced by 1H‐NMR spectroscopy.