CHE 375 Final - 3 ) 6 ] 3+ onto this diagram. (Leave the...

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CHE 375 Fall 11 Practice Questions Final Exam 1. The energy levels for the sigma bonds of an octahedral transition metal complex are drawn below. a) Draw all atomic, ligand group, and molecular orbitals. b) Add all symmetry labels. c) Draw a box around those molecular orbitals that are considered metal d orbitals (either pure metal d orbitals or molecular orbitals with predominantly metal d character). d) Identify the energy gap that is referred to as the “ligand field splitting.”
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2. Assume the orbital energy level diagram below is for the complex [Co(OH 2 ) 6 ] 3+ . a) Now superimpose the orbital energy level diagram for the complex [Co(NH
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Unformatted text preview: 3 ) 6 ] 3+ onto this diagram. (Leave the metal side the same and draw the new levels for the ammine ligands on the right side. Then form the new metal complex energy levels.) Based on your new diagram, what change has occurred regarding the ligand field splitting? If [Co(OH 2 ) 6 ] 3+ is a high-spin complex, is [Co(NH 3 ) 6 ] 3+ definitely also a high-spin complex or could it be a low-spin complex? c) Do the same for the complex [CoF 6 ] 3-. (Focus only the cobalt-fluorine sigma bonds, i.e., neglect the metal-fluorine pi interactions.)...
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This note was uploaded on 12/12/2011 for the course CHE 375 taught by Professor Andreamyer during the Fall '11 term at SUNY Stony Brook.

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CHE 375 Final - 3 ) 6 ] 3+ onto this diagram. (Leave the...

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