Experimental Evidence for a Jahn-Teller Distortion in AuCl_3

摘要

Gold halides have generated considerable interest amongst both computational and experimental chemists because of their intriguing bonding and structures.Advances in gas-phase(mass-spectrometry)experiments and the theoretical importance of relativistic effects in gold chemistry have recently been reviewed.The common oxidation states for gold are Au~III and Au~I,with Au~II being comparatively rare.The Au~I monohalides display large structural relativistic effects,and the very short Au---Au distances in their dimers(caused by the so-called "aurophilic attraction")are regarded as classic examples of metallophilic interactions.All of the monohalides have been characterized experimentally.