Using crystal field theory, draw an electron box energy level diagram for the valence d orbitals on the cobalt atom in a tetrahedral [COBr, complex. Your diagram should show the relative energy of each orbital, and the number of electrons in each orbital. Note: to make your diagram easier to read, label the d orbitals with just the subscript. For example, label the d, orbital with just z?. Energy 1

The complex ion CoCl42- has a tetrahedral structure. How many d electrons are on the Co? What is its electronic configuration? Why is the tetrahedral structure stable in this case?

1. Draw two possible resonance structures for DMSO, where S is the central atom. What kind of bond exists beetween the S and O in DMSO?  2. Based upon these resonance structures, explain how DMSO can behave as an ambidentate ligand.

Which of the following forms of isomerism can be exhibited by [Fe(H2O)3Cl3]? Draw and label those that apply.  A. cis-trans isomerism B. coordination isomerism C. linkage isomerism D. mer-fac isomerism E. optical isomerism

You are comparing two coordination complexes that have the same molecular shape and central metal cation. Complex A has only chloride ligands and Complex B had only CO ligands. Which statements are true regarding the complexes? Select all that apply. Complex A has the smaller crystal field splitting. Light of higher frequency is required to promote an electron from the lower to the higher d orbitals in complex A relative to complex B. The light emitted as a photon is released to relax an electron from higher to lower energy d orbitals has a longer wavelength for complex A. Light of higher frequency is required to promote an electron from the lower to the higher d orbitals in complex B relative to complex A. The light emitted as a photon is released to relax an electron from higher to lower energy d orbitals has a longer wavelength for complex B. Complex B has the smaller crystal field splitting.

When a certain strong-field ligand forms a tetrahedral complex with Zn 2+ cation, the energies of the valence d orbitals on the zinc atom are split according to this electron box diagram: energy in kJ/mol -350 -400 ху yz XZ -450 -500 -550 -600 2 2 x -y -650 Using this diagram, answer the following questions. How many unpaired d electron spins does the zinc atom have? paramagnetic Is the complex paramagnetic or diamagnetic? diamagnetic

Three complex ions of cobalt(III), [Co(CN),]?-, [Co(NH;),]*, and (CoF, absorb light at wavelengths of (in no particular order) 290 nm, 440 nm, and 770 nm. Match each complex ion to the appropriate wavelength absorbed. What color would you expect each solution to be?

Using crystal field theory, draw an electron box energy level diagram for the valence d orbitals on the manganese atom in a MnCl, complex. Your diagram should show the relative energy of each orbital, and the number of electrons in each orbital. Note: to make your diagram easier to read, label the d orbitals with just the subscript. For example, label the d , orbital 2 with just z. Energy 1 Ar

The energies of the valence d orbitals on the iron atom in the octahedral (Note: the d orbitals are labeled with just their subscript, to make the labels easier to read.) Complete the diagram by adding the correct number of electrons to each orbital. 1 energy xy yz xz X [Fe(H₂O)]²+ complex are split according to the electron box level diagram below. |