sample exam 2 - Chemistry 312, Summer 2011 Name: Sample...

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Chemistry 312, Summer 2011 Name: Sample exam 2 (MO, CF and LF theories, metal complexes) Answer all questions; 50 points are possible. The exam is closed-book and closed-note; a periodic table and other information is provided within this exam. The exam length is one hour, and show your work for full credit. Answer the following questions about the MO diagram shown below for a metal complex containing π –donor ligands. 1. a. Fill in the MO diagram shown on the next page with the appropriate number of electrons for M n+ = Fe 2+ . b. Label the Δ o parameter in the appropriate region of the diagram. c. What is the symmetry of this complex? 2. Determine the spin–state (S= ?) of the following complexes (NH 3 = neutral, CN = monoanion): (10 pts) (a) [Cr(NH 3 ) 6 ] +3 S= _________ (b) [Fe(NH 3 ) 6 ] +3 (high–spin) S= _________ (c) [Fe(CN) 6 ] 3– (low–spin) S= _________ (d) [Mn(NH 3 ) 6 ] +3 (high–spin) S= _________ (e) [Mn(CN) 6 ] 3– (low–spin) S= _________
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s A 1g E g A 1g
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This note was uploaded on 01/19/2012 for the course CHEM 312 taught by Professor Staff during the Summer '08 term at University of Washington.

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sample exam 2 - Chemistry 312, Summer 2011 Name: Sample...

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