Radii of Au-Species Au = 123pm Z1 Z2 Distance Species Reference 5 79 192.27 AuB pw 6 79 181 AuC+ pw 7 79 181.2 AuN2+ [88] 13 79 233.84 AuAl [10] 14 79 222.2 AuSi+ pw 31 79 245.26 AuGa pw