Coordination Chemistry Solutions: #22

22.* (1991 2 2) Consider (Cp)M(CO)x. What is M for X=1, X=2, and X=3?

Co donates 2 electrons, and Cp donates five or six. The metal M depends on the value of X:

For X=1: M can be Cu, Ag, or Au

For X=2: M can be Co, Rh, or Ir

For X=3: M can be Mn, Tc, or Re