3. Given the ligands on the Ru(II) center in the following, explain whether the complex is likely to be high-spin or low- spin. C4 C3 01 C2 02 03 P1 Ru C12 C11 5. Would you expect the complex in #3 to be effective as a potential catalyst? Why or why not?

5. Determine the denticity of each ligand (i.e., is it monodentate, bidentate, etc.). H₂N HO. OH H ∙N. OH OH NH₂

Tp 2Fe is a low-spin Fe(II) complex with Fe-N bonds of 1.97 Å. Tp Ph 2Fe is a similar complex that is high-spin Fe(II) and has Fe-N bonds of 2.25 Å. Explain why the high-spin complex would have longer (i.e., weaker) Fe-N bonds than the low-spin complex.

Which of the following statements about 10Dq is false? A. In the [CoX(NH3)5]n+ complex, the color changes from dark violet to yellow when X is replaced by I-, Br-, Cl-, H2O, and NH3, respectively.B. [VCl6]2- has a greater 10Dq than [VCl4] complex.C. [MnF6]2- has a higher 10Dq value than [TcF6]2-.D. [V(H2O)6]3+ has a higher 10Dq value than [V(H2O)6]2+.

6. In the following complex compound there are _ d electrons. [Zn(NH3)4]^2+

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3. a. The [Co(H₂O)6]³+ complex is high spin. Fill the below molecular diagram with the correct number and spin of d electrons. e g 128

Identify the first-row transition metal for the following 18-electron species: a. [M(CO)3(PPh3)]¯¯ c. (n*-CgHg)M(CO), b. HM(CO)5 d. [(n-C5H5)M(CO)3]2 (assume single M-M bond)

1. The Cp2Rh2[u-(CF3C=CCF3)](CO)(CNR) complex has a Rh-Rh bond distance of 2.67 Å, strongly indicating a covalent bond between the rhodium atoms. How would you electron count this complex to accommodate a Rh-Rh covalent bond? Clearly show the electron counting.

Using the ligands ethylenediamine (H2NCH2 CH2NH2) and bromide anions, design a cationic chiral octahedral complex of cobalt(III) with a +1 charge. Draw the coordination complex with its enantiomer.