| Oxidation State | Substances |
| Au-I | [Au (NH3 )n ]- in liquid NH3 |
| Au0 | gold clusters (exp ( [Au8 (PPh3 )8 ]2+ ) |
| AuI | Au2S, [Au (CN)2 ]- and other complexes |
| AuII | rare but some complexes are known |
| AuIII | Au2O3 , Au (OH)4- (aq), AuCl4- (aq), |
| AuCl3 (OH)- (aq), Au2S3 , AuF3 , | |
| Au2Cl6 , AuBr3 , complexes | |
| AuV | AuF5 |
| AuVII | AuF7 |
