While several gold (I) complexes of the type (L) AuX (X= Cl, Br) are known to undergo oxidative addition of elemental chlorine and bromine (X2), respectively, to give the corresponding gold (III) complexes (L) AuX3, the addition of iodine to (iodo) gold (I) compounds is strongly ligand-dependent, suggesting a crucial threshold in the oxidation potentials. A systematic investigation of this particular oxidative addition of iodine using a ...