Concept Review Questions Chapter 8

Last updated
Save as PDF

Page ID: 290607

\( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)\(\newcommand{\AA}{\unicode[.8,0]{x212B}}\)

Concept Review Questions

Section 1

1. Explain the difference between a microstate and a state.

2. Explain what is meant by a term? Why do we need terms to explain electronic spectra?

3. What is meant by “Russell-Saunders coupling”?

3. What is the definition of the total angular momentum quantum number L?

4. What is the definition of the quantum number M_l?

5. What is the definition of the quantum number m_l?

6. What is definition of the total spin quantum number S?

7. What is the definition of the quantum number M_s?

8. What is the definition of the quantum number m_s?

9. How many microstates are associated with a term defined by a quantum number L and S respectively?

10. Which formula can be used to calculate the number of microstates with a specific d electron configuration?

11. What is meant by the spin-orbit coupling?

12. Why is the spin-orbit coupling usually neglected for electronic spectra?

13. What is the dependency between the quantum number L and the energy of a term?

14. What is the dependency between the quantum number S and the energy of a term?

15. What is meant by a “free ion term”?

Section 2

1. How do D, P, and S terms split in an octahedral and tetrahedral ligand field, respectively?

2. What is a correlation diagram?

3. What is meant by t_2g², t_2ge_g, and e_g² terms in octahedral complexes? Explain their relationship to molecular orbitals.

4. What is the major difference between a Tanabe-Sugano diagram and a correlation diagram?

5. Why do terms with the same symmetry never cross in Tanabe-Sugano diagrams?

6. When are lines in Tanabe diagrams straight and when are they bent?

7. What is a metal-to-ligand charge transfer (MLCT) transition?

8. What is a ligand-to-metal charge (LMCT) transfer transition?

9. Under which conditions does a MLCT transition occur in the visible range? Name one example of a complex that does MLCT.

10. Under which conditions does a LMCT transiton occur in the visible range? Name one example of a complex that does LMCT?

Dr. Kai Landskron (Lehigh University). If you like this textbook, please consider to make a donation to support the author's research at Lehigh University: Click Here to Donate.