1,3,4,5

Chapter 13b: Conjugated Systems \& UV Part 2 Name: 1. Give the IUPAC name for the following compounds. 2. Order the following compounds from lowest max in nm to highest max in nm ( 1 being the lowest). 3. Draw the HOMO and LUMO of 1,3-butadiene and ethene. 4. 1,4-Pentadiene has a Hhydro=254kJ/mol while trans-1,3-pentadiene has a Hhydro =226kJ/mol. Explain this difference in heat of hydrogenation. 5. What are the three types of dienes? Give examples of all three