Construct the reducible representation for vibration of the CO ligands in the molecule cis-W(CO)5. 2. Reduce the representation to a sum of rreducible representations. 3. Which of the representations are IR active in the C2v point group?

See image below... What determines whether these are high spin or low spin or neither?

If you mix Cu2+ with , a. NaCl, b. NaNO2, c. H2O , arrange the solutions based on their absorption from highest frequency to lowest frequency?   A) a, b, c B) a, c, b C) b, c, a D) c, b, a E) All solutions will absorb at the same wavelength, only the amount of absorption changes based on the ligand strength

Given the Tanabe-Sugano diagram below for a d7 complex. Which of the following corresponds to the ground state if the ligand is a strong field ligand? A. 4T1gB.4A2gC.2EgD. 2T1g

1. Using the MO scheme provided below, calculate the bond order for the ligand-metal bonds in a ML6 complex where M=Co2+ and NH3: Recall that independent of the ligand, the eg orbitals that are 10Dq above the t2g orbitals are always o*. M ML6 6L O* 4p d,?.? d,? 2 х - у 4s 3d dy dyz dyz sp3 Op Os

Co is strong field ligand Plot the temperature dependence of the magnetic susceptibility versus temperature for a paramagnetic compound. Provide a rough sketch. Look up and write down the equation for Curie-Weiss law. How does this apply to your plot?

6. Below (top of next page) are shown two possible configurations for a metal center with six cyanide (CN): a trigonal prism (A) and the trigonal anti-prism (B). a. Assign the point groups for A and B assuming the M-C bond distances are the same and that the C-N bond distances are the same. Also, all C-M-C bond angles for nearest neighbor cyanide ligands are 90°. b. Determine the irreducible representations for the C-N stretching vibrations in A and B (you will first need to find the reducible for these modes and then reduce that representation). c. d. Identify the number of IR and Raman active modes for A and B. State and explain whether one can distinguish between the two possible geometries using only IR spectroscopy. N=3 XX N A B