1. For the following compounds or ions, give the systematic name, the point group, the ligand field stabilization energy (in units of Dq), the predicted spin-only magnetic moment (in units of Bohr-Magnetons), and determine the predicted distortion if the complex is Jahn-Teller active:
a.
(Despite the drawing, the Fe-N-O and Fe-C-N bond angles are 180°.)
b.
c.
d.
2. For the following compounds or ions, give the systematic name, the point group,and predict if the complex will be stable:
a.
b.
c.
d.
3. For Co3+, the spin pairing energy is 21,000 cm–1 and Dq for NH3 (when bonded to Co3+) is 2,300 cm–1. Estimate the wavelength (in units of nm) for the lowest energy spin-allowed d-d transition in [Co(NH3)6]3+. Useful information: nm = 107/cm–1; ν = 10Dq for d6 high spin; and ν ~ 9Dq for d6 low spin.