1. (15) Consider molybdenum hexacarbonyl:
a. What is the structure and electron count of this compound.
b. Justify its electron count with an MO diagram.
c. Describe the bonding of the carbonyl ligand, using diagrams (and words).
d. If this compound were to undergo a ligand exchange, what mechanism would it follow?
Justify this.
e. If this compound were to undergo ligand exchange, would its intermediate structure lend
some stability? Describe how using d-orbital splitting.
f. Sketch and label the reaction coordinate for ligand exchange.
2. (12) Consider
:
a. What is the electron count of this compound?
b. Justify its electron count with an MO diagram.
c. Describe the bonding of the bidentate ligand, labeling its bonding (L, X--) and using an
appropriate Greek prefix.
d. If this compound were to undergo a ligand exchange, what mechanism would it follow?
Justify this.
e. If this compound were to undergo ligand exchange, could the solvent play a role? Describe
how using chemical equations.
f. Sketch and label the reaction coordinate for ligand exchange.
3. (10 points) Consider ferrocene:
a. What is the structure and electron count of this compound.
b. Justify its electron count with the following MO diagram:
c. Describe the different hapticities available to a Cp ring, using diagrams (and words).
d. If this compound were to undergo a ligand exchange, what mechanism would it follow?
Justify this.