Metal–Arene Interactions in Dialkylbiarylphosphane Complexes of Copper, Silver, and Gold

摘要

Dialkylbiphenylphosphane–AuI complexes exhibit only weak metal–arene interactions with the covering arene ring. However, the contacts in isoleptic AgI and CuI complexes are shorter than the limiting values of 3.03 Å (AgI) and 2.83 Å (CuI). Strong metal–arene interactions were also found in the two AgI aquo complexes and in two acetonitrileCuI complexes with dialkylbiphenylphosphane ligands. Arene–AgI complexes with these bulky phosphane ligands show the strongest AgIarene bonds known.