# Concept Review Questions Chapter 5

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## Chapter 5

### Section 1 & Section 2

1. Explain how the name “chelate” ligand originates.

### Section 3

1. What are the main factors determining coordination numbers?

2. Is the coordination number 1 common? Explain.

3. For which electron configuration are the coordination numbers 2 and 3 common?

4. What is the structure of methyl lithium?

5. What electron configuration is common for square planar shapes?

6. What is the most common shape for the coordination number 4?

7. Which are the most common shapes for the coordination number 5?

8. What is the Berry pseudo rotation? Describe its mechanism.

9. What are the most common shapes of coordination compounds with the coordination number 7? What are the point groups associated with these shapes.

10. Explain briefly, why molecular coordination compounds with cubic shapes are not known, while square anti-prisms are relatively common.

11. Explain why coordination compounds with high coordination numbers (7 and larger) are not very common.

12. Name an example of a coordination compound with the coordination number 9.

### Section 4

1. What is the difference between a constitutional isomer and a stereoisomer.

2. Name four types of constitutional isomerism.

3. What is the definition of hydrate isomerism?

4. Why is hydrate isomerism only possible in solid state?

5. What is the definition of ionization isomerism?

6. What is the definition of coordination isomerism?

7. What is the definition of linkage (ambidentate) isomerism?

8. What is the difference between a diasteromer and an enantiomer?

9. What is the definition of cis-trans isomerism?

10. What is the definition of fac-mer isomerism?

11. What is the definition of a propeller complex?

12. What is the definition of a left-handed/right-handed propeller?

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.

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