Chapter 21, Problem 81RQ

Referring to the two ligands, A and B, described in Problem 21.80, which complex would be expected to be more easily oxidized, ${\left[\text{Co}{A}_{\text{6}}\right]}^{\text{2+}}\text{or }{\left[\text{Co}{B}_{\text{6}}\right]}^{\text{2+}}$? Explain your answer.