The first gold(I) complexes of simple arenes show a separation between the Au center and the mean aromatic plane of 2.20-2.24 Å, which is much shorter than the related silver(I)-arene bonds.
![Cationic eta1/eta2-gold(I) complexes of simple arenes](https://www.iciq.org/wp-content/uploads/2014/03/Cationic-eta1eta2-goldI_eng_noticies_articles_2006_33.gif)
The first gold(I) complexes of simple arenes show a separation between the Au center and the mean aromatic plane of 2.20-2.24 Å, which is much shorter than the related silver(I)-arene bonds.