Answer each of the following questions. Molecule of study: pentaamminechlorocobalt(IIII) chloride a) Write down the molecular formula, the oxidation state and electron configuration of the transition metal. [3 marks] b) Using a Gouy balance, the magnetic susceptibility of the complex was measured to be 0.1 B.M. Draw the crystal field splitting pattern for the complex with the appropriate orbital and symmetry labels. [7 marks] c) Calculate the Crystal Field Stabilization Energy knowing that max=500nm and P= 15,000cm1. [5 marks] d) Pentaamminechlorocobalt(III) chloride was first reduced to Co(II), and then mixed with sodium thiocyanate (NaSCN) in the presence of a bulky cation. A color change was observed and a blue powder was isolated and identified as [Co(SCN)4]2. When the blue solution was cooled down below 233K, the color of the solution turned red, and the magnetic susceptibility of the compound was measured again to give 1.7 B.M. (hint: the coordination number increased from 4 to 6 ). Write down the equations for the two reactions, describe the crystal field pattern of the new complex [Co(SCN)4]2 using the point group character table shown below and account for the color change and magnetic susceptibility measurement obtained