Evaluate for each of the following pairs of complexes if they would be able toparticipate in an inner sphere electron transfer reaction. If they could, show theintermediate.[Ru(NH3 ) 6 ] 3+ and [Fe(CN) 6 ] 4-Cr aq2+ and [Fe(CN) 6 ] 3

In an inner sphere electron transfer reaction, a bridging ligand is required to facilitate the electron transfer between the two metal centers. This bridging ligand is typically a ligand that can bind to both metal centers simultaneously.

1. For the pair [Ru(NH3)6]3+ and [Fe(CN)6]4-, the ligands present are NH3 and CN-. Neither of these ligands can act as a bridging ligand between Ru and Fe, as NH3 is a monodentate ligand and CN- is a strong field ligand that would not readily dissociate from the Fe center. Therefore, these two complexes would not be able to participate in an inner sphere electron transfer reaction.

2. For the pair Cr aq2+ and [Fe(CN)6]3-, the ligands present are water and CN-. Water can act as a bridging ligand between Cr and Fe, allowing for the possibility of an inner sphere electron transfer reaction. The intermediate would be [Cr(H2O)4(OH2-Fe(CN)6)]3+. Here, one of the water molecules from the Cr complex has formed a bridge with the Fe complex, facilitating the electron transfer.