Complete the exercises below.
The molecule dimethylphosphinoethane [(CH₃)₂ PCH₂CH₂P(CH₃)₂ , which is abbreviated dmpe] is used as a ligand for some complexes that serve as catalysts. A complex that contains this ligand is Mo(CO)₄ (dmpe) .
a. Draw the Lewis structure for dmpe, and compare it with ethylenediamine as a coordinating ligand.
b. What is the oxidation state of Mo in Na₂ [Mo(CN)₂ (CO)₂ (dmpe)] ?
c. Sketch the structure of the [Mo(CN)₂ (CO)₂ (dmpe)]²⁻ ion, including all the possible isomers.